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From:  www.aietao.com<br />Introduction to literacy headphones, the essence of post Source: Shao Feng logThis two-day forum that unusually hot chop suey music, do not know whether China is a musical fashion, technology exchange area emitting a lot of people ask questions which are on the buy side than on the issue, answer some questions in the aboveAfter the surprise, the Internet found a bit rough on headphones, audio (here talk about hard drive MP3 player, MD and CD do not talk about, after all, there now has been taken to the streets carrying a CD drive is not a lot of people ) and amp (headphone amplifier, commonly known as Fannie and Freddie) is not a lot of posts, not the search to the hype of the advertising business software, is a comparison of two or headphones attached Mito pull the wind, really faithful to the entry of small burnnot many posts. Woke up feeling very sore head the morning did not go to school, decided to write some of the headset device outer experience fever, burned a lot of money the next is also small, but between the students, not so much money to burn car audio and music center, and our contacts the most is your favorite MP3, and your little headphones, to collect some information from the Internet and use their own understanding to elaborate, I hope you like it.----------------   HYPERLINK quot;
http://www.aietao.com/quot;
 Reviews and Comparison of noise cancelling headphones ------One. Headphones Category:Classified according to shape: ear (ear canal type headphone) - Ear (also known as ear canal) and semi-ear                    Headset (headphone) - the size of the headset with full-size headphones (full wrap ear)According to Wear mode: stuffing type, ear, after the hanging, head-mountedAccording to the acoustic structure of Category: Open - such as the Sennheiser (sennheiser) PX100, Gaussian PP,                         Closed - such as Sennheiser PX200, Audio-Technica and other high-end HD series peripherals                         Semi-open - Beyerdynamic DT880, Sennheiser MX400, MX500 and so on.According to principles of electro-acoustic Category:1. Moving coil (electric): It is actually a miniature electric speaker, when the current through the coil, the coil becomes an electromagnet, permanent magnet will be rejected or the role of attraction in order to drive the diaphragm produces sound .Limited moving coil drive technology is mature, well-durability, reliability, 99.5% of the headphones are moving coil driver.2. Moving iron: an iron internal ear, the voice coil is located in a permanent magnetic field around the center is called quot;
Balanced Armaturequot;
 precision iron chip. Piece of iron under the effect of the magnetic drive diaphragm sound. Is directly driven diaphragm moving coil, moving iron is connected through a sophisticated rod structure transmitted to the center of a micro diaphragm, resulting in vibration and sound. Since moving iron moving coil headphones headset costs much higher than that, it is generally high-end headphones headset will have a dynamic presence of iron, more well-known is the iron triangle, Etymotic and Shure.3. Static Electricity: its sound is different from the moving coil principle, the basic principle is to be placed with a very thin diaphragm to a static electric field, the input signal changes result from changes in electric field-driven diaphragm sound. ButBecause it is very costly, so manufacturers made very few electrostatic headphones-STAX, described below, will do.In accordance with the use classification: too much. . . Do not do to say, be pointed out that enthusiasts are more concerned about noise reduction headphones for a class called - into active noise reduction (Sennheiser PXC series, the outside world with an active noise reduction device battery, BOSE QC series, directly speaking to install anti-noise source within the headset) and passive noise reduction (SONY several first wife headset).References: ---------------------------------- I'm invincible, it is a dividing line --------- ----------------------------II. Detailed headset parameters:I believe we see the headset when it is more concerned about the shape, and few to pay attention to their arguments, I also believe that the parameters of light from the headphones, a lot of people do not know what is going on in the end they, as ask the vendors, they may only be carried out from the sound quality on your flicker, but what your own source if you are in the headset to play the perfect efficiency (burning faithful called quot;
pushquot;
), may know not too much. I also admit that many of the best headphones in the parameters and can not see anything special, and even some good headphones still has appalling argument, but I think that knowledge still need to find out. -Speaker diameter: 40mmBlockResistance: 32 EuroSpiritMinLevel: 6 * 5-54-3dbRated Power: 20mwFrequency range: 20HZ-20000HZSpeaker: φ15mmCable: 1.2MFrequency of the range: 20HZ-20, 000HZImpedance: 32ΩSensitivity: Microphone: 108dB S. P. Lat 1khzRated Power: 3MWPower Capacity: 15MWPlug: Stereo φ 3.5MImpedance (Impedance): Note the difference between the meaning and resistance in direct current (DC) in the world, the role of objects on the current obstacles called resistance, but in alternating current (AC) is in addition to the areas outside the current resistance will hinder, capacitors and inductors will also impede the flow of current, this effect is called reactance to, and our daily said resistance is the resistance and reactance in the vectors and.Sensitivity (Sensitivity): point to the headset input power of 1 mW can be issued when the headphones sound pressure level (sound pressure is expressed in decibels, the greater the larger the volume of sound pressure), it is generally the higher the sensitivity, the smaller the impedance, headphone the easier it out loud, the easier it is driven.Frequency Response (Frequency Response): the sensitivity of the corresponding frequency is the frequency response, the image is drawn into the frequency response curve, the range of human hearing can reach about 20Hz-20000Hz, now a mature technology have reached such a headset requirements.(The above information is known from the Baidu)Simply put, there is a very important word: a headset is easy to push, there is a general principle is that the higher the sensitivity the better push, push the resistance the lower the better. As a result, many people will find a lot of quot;
big ear packagequot;
 has a high resistance - more than 60 of Europe we generally become high-impedance headphones, and generally we have the normal use of the MP3, the standard internal drive 32-ohm impedance, So we buy the headset, you will find a large part of only 32 ohms impedance headphones around, this headset, which we call the quot;
perfect push-type headphones straightquot;
, for the high-impedance headphones, less than 150 ohms, we can use CD and MD Direct Push, higher, it needs to amp (headphone amplifier). Some people chop suey music forum asked why the high-impedance headphones Direct Push will not, is not only sound small it is not true:According to Ohm's law, we know that power is equal to the square of current multiplied by resistance (we have communication problems into consideration, leaving only, and to consider all of our acoustic instruments such as flow state is a state rather than the other pressure - because we know that in AC circuits,impedance of the quot;
straight cross-resistance, low resistance high-passquot;
 feature), so that the output resistance is too small if we (the source resistance), the output power will be smaller, and we know that an electrical appliances operating at nominal power if the He's the highest degree of frequency response (ie sound) and amplitude sensitivity (that is, the resolution of high frequency and bass) will receive the impact.So simple to say, this headset, we can not direct push, it will affect the sound quality, and make way to amp.Invincible dividing line ------------ ---------------------------------- hematemesis -------------------------III. Some frequently asked questions (often asked to):1. Headset and audio which is better?This is a very common problem, have to admit that the price, sound much better than the headphones. . (Obviously, the poor students can not afford good sound), but the sound quality, said there are distinct differences between the two. Headset feature is strong in high-resolution, while the sound is characterized by strong in the sound field.To some extent, the two are not comparable.2. Moving iron moving coil headphone headset is better than that?The result is not answered. Is characterized by dynamic headphones treble frequency response and clarity of bass frequency response (that is, a higher high and low sensitivity, and discrimination of larger, softer sound big difference), and moving iron headset strong explosive force in the sound (high bass explosive better), so that the dynamic headphones are more suitable for listening to some of the popular and classical, gentle girl and the like, and moving iron headset for Takeo. . . (Of course, the fact is not so classified)3. Noise reduction headphones are of sound quality?Personal experience - is. Can not say that in fact, active noise reduction is a special technique, by continuing around the tuning fork makes the current through a special headset to issue a noise that can interfere with normal voice frequency, so as to achieve noise reduction. I personally feel the overall sound quality is not very different, but my PXC250 active noise reduction of a switch, if the switch is closed, the bass a bit impossible for anyone to receive.4. What is a burn in?Simply put, that is, buy a new car as a reason to pull, burn in order to make you love the new headset with the fastest time through the run-in period to achieve the best use of the state, the new headphone burn in is very important, All my headphones I can hear the difference before and after the burn unit, the other burning machine is also an effective way to extend the service life of the headset. Burn in a lot of technology, especially a lot of people burn in their own technology, time is short and quick, of course, I was not systematically studied. The most common method is to burn 5 days, I generally like this, first find a new headset the sound you usually preferred size, then one-third of the volume of continuous playback with 10 hours rest for 2 hours; then use one-third of the 2 volume 10 hours, rest for 2 hours. Play with the volume of the normal 10 hours for a group to play 2 groups, the break time is 2 hours; the last and then you feel that you just can not accept that the maximum sound playback 4 hours. Complete rest 1 day, you can enter a normal headset using state of the. The music on the burn in the beginning of the 20-hour period, do not use a strong electronic music, because electronic music is not easy to run a new headset breaketh direct the diaphragm, which is very dangerous, the last 4 hours before the use of electronic music to run.Burn in the general common RADIO is better to use as the radio voice of a variety of frequency response, suitable for burning machine. For those who are not demanding in terms of, arbitrarily selected popular music are possible. If you want to compare the intentions to care for your new headset, we must select high-quality classical music, and we all know, download the APE lossless in the Thunder's burn unit interval Tiandie - black poison (new black magic) you will burn in the best choice.5. The music sound quality:This may be the most people want to know one thing, a recognized, legitimate CD WAVE CD drive the amp received interval is the Need for sound effects. For people who use mobile devices, APE lossless interval is a kind of non-processed decoded WAVE interval, so that the sound quality is also near the best, of course, the general capacity to around 50 to 60M. More people, using MP3 or WMA, has a tradition of misunderstanding is the MP3 sound quality sound better than WMA, in fact, this is a misconception. WMA is windows media a special decoding, various extent, is said to MP3 sound quality is better than normal, but with the characteristics of small capacity, but the key problem is that does not support high bit rate WMA Music Converter, which resulted in endless online The 1M something about the situation WMA blind fool. Finally, we use the most comes to MP3, MP3 decoding rate from the highest distinction for the 320K (bps), a song about 10M in size, relatively low-end MP3 sound quality is 128K (bps) size 2,3 M, mid-range of general to 192K, the size of 4M or so.From the compression means, the CBR can be divided into two kinds of compression and VBR compression mode: VBR and CBR encoding different traditions, the traditional CBR (Constents BitRate) is a static bit rate, CBR MP3 sample agreed dead rate is fixed. An MP3 from start to finish for a fixed value, such as 128KBit / s compressed. The VBR is taking a new, dynamic adjustment of the whole technology of the compression method. When the bass segment, VBR will automatically use a lower bit rate, such as 32KBit / s compressed sound quality; as in the treble section will be used when a higher bit rate, such as 224KBit / s compressed sound quality; When high-end Time is of the highest 320KBit / s compressed. VBR MP3 file size is under control, to maximize the MP3 sound quality.------------------------------ --------------- Dividing line invincible sin ----------------------IV. Popular high-end MP3 player1.IPOD: BS Johnson brother many times, as a music enthusiast, it seems to get worse IPOD point of a weapon. Although the price be high, but from the sound quality is not up in terms of professional IPOD music player, but if you are not too harsh on the music, not too harsh on the equalizer, IPOD definitely one of the options is a good. IPOD NANO2.SONY: SONY most famous is the A8 series, the standard A816 to A815 2G and for the classic. As a veteran of the acoustic manufacturers, small Japanese SONY music lovers the world no one really disappointed. SONY bass rendering is very well known, and the A815 is equipped with a strong custom equalizer and surround sound compensation effect, be regarded as one of the Acura in MP3. SONY NWZ-A815, is now below the mark of one thousand yuan.3.IRIVER (iRiver):Frankly, I do not like Gaolibangzai of things, but the concept is indeed in IRIVER refer a veteran audio equipment maker, and the quality is indeed impeccable, had to take it out to recommend. IRVIER to the beautiful sound and powerful background rendering has been widespread concern Shaoyou, more classic with E100 (2G), the last at the most popular and IRVIER cooperation is DISNEY MICKEY SHUFFLE, the majority like pretty gadgets I am afraid the girls can not stand it (small LV is one of them, but when I send you when your birthday present that I enjoyed it.. Ha ha) E100 - Genuine around in 800RMB MIKEY SHUFFLE-two ears turn to SHUFFLE the same time. . . Data from the small LV. . .4.KENWOOD (Kenwood): It seems China is not particularly well known, this veteran of the Japanese electronics expert, but renowned in the world, there are many high-end MP3 it, expensive, style is not unique, but the sound quality is very strong , typical of the practical line of MP3. M1GB5-letter series is a very good sales in Europe and the Americas series of MP3, as in the domestic market is small. M1GB5R-side equivalent to about RMB 8005. Samsung: what is the stick, not to say that sound quality is the main bass, and burning faithful not burn, because the cost is not high, but can be considered best. YP-P3, standard peripherals, Samsung MP3, 1200RMBThere are some U.S. territory such as high fever, ICP and other brands, do not go into details here, because after all, sound quality is not very different. If you have the intention to buy MP3, you can see above this, think fairly comprehensive and professional.6. Innovative (creative)Innovative MP3, MP4. Creative innovation is the production of personal computers and networks for digital entertainment products worldwide leader. In 1981, Creative's founder with the vision that multimedia would people interact with the PC to bring about revolutionary change, then, Creative has come out in Singapore. Burning is the affordable choice IMBA faithful. Innovation zvm  zx, said to spike all the domestic MP3 sound quality ZEN, ancient artifact! ! ! ! !7.B & O:The following detailed description of the professional factory in Denmark. UFO to slightly, flash in the strongest voice!------------------------------- -------------- Tianhundian invincible dividing line ----------------VI. Fever and earphone brands at a glance:To the topic, with an estimated number of people will look at this post look at this part of it, not necessarily all, welcome Replies help me to add.EDIFIER (Walkman), Philips, SONY and so would not it first wife, and game peripherals such as steelseries, ICEMAT seberia, razer large mines no longer discussed here. . .Germany articles:1.Sennheiser (Sennheiser)Founded in 1945, the old headset company, has developed into an international group, the main production of headphones, microphones and other products. Many types of model quality headphones, have produced the world's most expensive electrostatic headphone system ORPHEUS, the current main production base in China, but production of high-end models still in Ireland. Now the main models include the HD650, HD600 high-end headphones (HD580 has been discontinued), HD595, HD555 and other mid-range headphones, and PX100, PX200 folding headphones, MX400, CX500, MX550 ear plugs. Can be described as the most widely (from top to bottom), the most prevalent in the market as a brand. PX100 - Direct Push one of the most classic headphones, bass is very strong PX200 - Direct Push one of the best-selling headsets, tenor treble for classic (coax his wife only...) Sennheiser HD650-ears in the most traditional of a package, enduring HD800 - the latest high-fidelity high-end work for the studio CX500 - with the CX650 and that quot;
the sum in mind two brothersquot;
2.Beyer-Dynamic (beyerdynamic)Headphones oldest companies, was founded in early 1924, the founder is the inventor of dynamic headphones. Over the years to the microphone and headphone known in the audio industry and professional circles. At present the main models include high-end headphones DT990, DT880, DT860, in the end of the DT770, DT660, DT440, DT231 and low-end DTX Series (DTX700, 800,900) and so on.Including high-end products manufactured in Germany, the low-end products manufactured in Taiwan.Special DT231, 300 or so, started the first choice, pushing far better than thousands of good headphones! - Bin brother recommended!Beyerdynamic Headphones whole sound clear, straightforward, no landscaping, it is a clear sense of line-oriented, dynamic and clarity of the headset at the same level in the well, and burning faithful often considered the brand.  DT860, pure hand-made, authentic German accent, can not afford to burn. . .                                           DT series are almost a matter of fact way to keep the German people's eyes,                                           However, the appearance of divided attention, focus on content.MB QUART (Goethe) and the U.S. GRADO (Goethe) - maybe has to put together Well, anyway, working togetherMB QUART: The German company was originally called the MB PEERLESS, later renamed the MB QUART, in recent years, the United States MAXXSONICS Corporation. The major products for speakers, car audio, professional audio, including headphones. The headset all local manufacturing in Germany, the most high-end closed-end headphones QP450PRO, under which a QP400, QP250, QP240, QP220, QP200, QP160, QP805 (professional use) and so on. Currently there are low-resistivity upcoming new high-end headphones QP435.MB QUART headphones sound light, a small modification, the high resolving power, high frequency light and elegant.GRADO: fever and earphone for small family factory, more than 50 years. The major products for the headphones and sing the first, with the cartridge base from the historical stage, from the nineties has focused on the headset products. The new flagship product for the GS1000, but the old flagship GRADO RS1 is still a landmark product. Parity models, SR60, SR80 has been popular for many years, received rave reviews, aluminum cavity SR325 is also very famous in enthusiast.GRADO headphones sound particularly energy and enthusiasm, full of personality, widely loved by young people, even in the conservative tastes of Europe, including Britain and Germany, HI-FI sector, are also widely acclaimed.ALESSANDRO GRADO for another company (Goethe Alice) made three headphones: M1, M2, MPRO, is also very famous. ALESSANDRO be customized according to the company they are, compared to the full personalize GRADO headphones, ALESSANDRO style of these three models of a number of neutral calm, GRADO personality a little short. M1 is recognized as the high cost of cheap headphones, and MPRO is recognized as the top overall performance of the headset, and RS1 par.In addition to iGrado GRADO headphones, all of the production in the United States. GRADO-RS1, 6000 多 RMB, can only look at the forum, and the fire is burning can not afford it, this headset metal legends have a strong sense of woodULTRASONE (ultimate)Germany, history is not long, focused on the design and production of headsets. Has launched the super-expensive limited edition EDITION 7 dynamic headphones. The highest model PROLINE 2500, and the limited edition EDITION 9. ULTRASONE headphones have a unique technology and sound, is unique HI-FI product.All produced in Germany. Austria articlesAKG (AKG)Austria's flagship banner, is also the burning of many music enthusiasts, a brand of hot! History of more than 60 years old professional headphone and microphone company. Produced many classic, evergreen-type products, such as the K141, K240, K501, K1000. In recent years, the main product from the high resistance, low resistance adjusted based. The highest model K701, below K601 (K501 has been discontinued), the main series impedance of 55 ohms STUDIO series (including K141S, K171S, K240S, K271S), and a series of folding for the Walkman headphones and ear plugs, to compete for the youth market. Ear which K12P and K14P popular, K24P, K26P, and K27i also popular with young people loved.Currently folding headphones and earbuds have been redesigned, but the basic change in name (to change the color patterns do not change unit), new models for the K412P, K414P, etc., and introduced the first ear headphones K324P.AKG products high in Austria, low-end products in the Chinese OEM.AKG headphones sound, traditionally, mellow, Naiting features. High and low frequency extension is conservative, but Naiting and very good music sense, is the voice of traditional Viennese elegance. AKG K 450, enthusiasts have the best understanding of a portable headset. The equilibrium   K272 HD, I found on the Internet is the most commonly used in Europe and America a studio set high.Danish articlesB & O (Bang & Olufsen)Denmark, the pride of acoustic instruments, the world's top audio-visual brand Bang & Olufsen in Denmark since 1925 Lancaster Ruhr (Struer) inception, has been to continue to create superior combination of technology and emotional appeal of audio and video products, world-renowned, fully embodies the Bang & Olufsen questioned the practices of the corporate vision stretches surprise. After entering China in 2004, Bang & Olufsen has 10 major cities across the country successfully opened 16 stores. Not only for consumers unparalleled audio-visual experience, but also the simple lifestyle of luxury to an extreme interpretation. Bang & Olufsen also with Louis Vuitton, Hyatt Hotels, Audi and other high-end brands to the top yachts in the manufacture of many exciting new areas. APPLE limited official online sales, B & O Limited Edition, said to be pulling the wind, but I do not think so. . Probably a problem with my aesthetic. .The American StoryKOSS (Gauss)The first is to think of the Gaussian, and was established in 1953, established the United States headphone company, from the beginning to the present, always focused on the headset manufacturers. Product strategy will be adjusted in recent years to mainly low-end headphones, but also retained several high-level professional monitoring headphones. PORTA PRO (commonly known as PP), SPORTA PRO, PLUG, KSC75 (linked ears), and other cheap headphones / ear plugs, has become a classic years of the same product. Product line would still have a ESP950 electrostatic headphones, is the only commodity STAX electrostatic headphones other than the system.KOSS headphones sound full of vitality and overall impact, good pop and rock, are typical American sound, loved by American teenagers.KOSS headphones products in addition to high-end models manufactured outside the United States, mostly assembled in China or South Korea. KOSS PP ---- a foul smell Street, Street, and Johnson quickly a Colombian barStrong bass, the popular choice for metal, the price is right, the absolute level of the early burn recommended! ! ! ! KSC75, has been discontinued, and looking very handsomeULTIMATE EARS (Emmett)Founded in 1995, the American Professional Ear Earphones manufacturers, has always been more concerned about burning faithful an iron headset manufacturers, products, custom ear molds, including the need CUSTOM series (including the world's most advanced ear UE 10 PRO), and the SUPER . FI Series (3 STUDIO, 5 EB, 5 PRO). Many of its products for the U.S. pop star to use, widely used for stage performances, and listening. Their products known for the strong low frequency is very strong and full voice for young people. News is the UE has launched a three-unit non-custom earplugs Triple.Fi 10.UE-the-shelf products in China, customized products manufactured in the U.S.. UE Super.fi 5 pro, starting recently, some very soft treble, bass legend'd feel not so strong, but the two-unit moving iron, heard very comfortable. . Burning machine yesterday when she listens to sleep. . . Oh also perhaps sleepyWESTONE (Visa Teng)The company was founded in 1959, mainly produces hearing protection products, such as hearing aids, of course, include listening to music with the ear headphones.The main ear of the ES series products are high (ES3, ES2, ES1), and UM series (UM1, UM2). A single unit and two units UM1 UM2 has a balanced, supple, warm, smooth sound at the end. UM2, as mentioned above, an iron double-unit structure, soft and smooth.SHURE (Shure)SHURE old in the United States has a long history of large companies, known to the microphone, but the products involved in the ear, it is only in recent years. It is the first product into the ear area is E1, and is now the main series of E2, E3, E4, E5, and the latest E500. SHURE With the popularity of its products made earplugs great success.SE210 already on the market, E2C be discontinued. The SE series, SE310, SE420, SE530 (with the E500).SHURE ear with the United States features the voice of the whole, full, warm, low-frequency effective, easy to drive. Fever is definitely the first choice of all the 2,000 headphones, and do not understand. .  SE530-SE series of nearly 3,000 new headphones, if not, then CD, MP3, then I think is unnecessary. SE310, 2000 米 succeed. . . Still resentment. . The brothers have spent time with me about feeling it, I have not touched Shure.ETYMOTIC (Etymotic)In Ear Earphones for development, established in 1983 ETYMOTIC regarded as a pioneer, the main design and manufacture of hearing equipment, including the relevant ear, that is, ER4 and ER6 two series, the idea is clear and easy to remember. ER4 is divided into ER4P, ER4S and ER4B three versions. Most likely to drive the P. The most popular is the ER6 burning faithful, after all, 4 is too expensive, and not push.Etymotic focus on resolving power and transparency of sound, a bit more lean in the bass is pure and detailed quot;
listening earquot;
, very little coloration. In pursuit of the other manufacturers have double-unit and three units of today, Etymotic stick with a full band is still an iron unit.ER6 here OEM 1500RMB, ER4 has been produced in the United States, almost 3000RMB.* Bin Brother highlight: the new domestic ER6 licensed only 600! 2 year warranty (I have to go back to the whole one day) Silent Hill with the ER6 heard, scary. . Of course, if you are willing to listen to the words of Zhang Zhen ghost story. .BOSE - let alone the Chinese, and it seems no one called in Chinese. .What is not said, Brother Johnson said might as well buy a BOSE audio car, one would like also, morning bloom brother two years ago with the owner of 91 Porsche Car BOSE, a few days ago that fat goose is also equipped with the Nissan whichBOSE sound, a little silent, the price thing. . . In recent years, now want to say is also out of BOSE headphones, including the ear, hanging ears are.Awareness is relatively high, and on ear bose in ear range, organic make Junliang ON EAR brother to tell you how it feels. BOSE which the QC3 (quick confort) series is the most high-end noise canceling headphones, you will find in many airlines, as long as you spend quot;
onlyquot;
 three thousand dollars to get on the plane. . . Days.BOSE headphones for business people, and there is the sound field, BOSE headphones headset with the most loudly of all transitions, after all, people do sound. BOSE QC3, to buy it on the plane. BOSE INTRA, ear, mouth burning faithful quot;
top pig mouthquot;
Japan PostsAUDIO TECHNICA (Triangle)Founded in 1962, the veteran Japanese companies, products mainly for the singing head and headphones. With the decline of singing the first industry in recent years increasingly focused on the headphones, is Japan's most dynamic headset manufacturer. The headset type, model, grade, is the most diverse Japanese firms were. Ear from the low-end parity (C701, C703, C705, CM3, RE1), Senior earplugs (CM700, CM700TI, EC700, EC700TI), lightweight headphones (FC5, FC7, RE3, ES5, ES7), ear (EQ series EM7, EM9, EW9, etc.), professional monitoring headphones (PRO5, PRO700, M40FS), in the high-end A series of closed headphones, AD series of open headphones, and Muke W series (W1000, W5000), all with user-friendly design, sophisticated technology and personalized voice.In recent years, the quot;
limited edition high productsquot;
 have a special preference for the introduction of the W2002, L3000, A900LTD, A1000 and other limited edition products. Audio-Technica's slogan is quot;
have been listening.quot;
 Has always stressed a balanced sound and balanced coloration is its most prominent feature of the headset.Audio-Technica headphones in the high-end products produced in Japan or Taiwan, many low-end products manufactured in China. ATH-ON3, it is appropriate for girls, not expensive, only 200. EC7, personal validation, sound very good for listening to Fish Leong. . CK7, CK9, could not find a good map, and are interested to find it online, thousands of iron remember best. ATH-L3000, returned last year when a Shaoyou shop in the Xuanwu seen, the boss will not let me Love. . . . Try to go back to wear a suit this year. . . 16000RMB Beijing out. . ResentmentSony (Sony)Sony headset products, notably the level of two extremes: the high-end, with the high price of the top dynamic headphones R10 (discontinued, up to now are the world's best dynamic headphones), QUALIA 010 ( discontinued), CD3000 (discontinued), SA5000 and other star product, the low end, there are a number of ear plugs and ear linked products (representative of a E888, EX90, etc.). At both ends during the mid-range products, but little attention. In addition, Sony also professional monitoring headphones, DJ headset and so on. SONY latest product EX700 ear is the world's most expensive moving coil ear, but also the current king of moving coil ear, creating a diameter, wearing a number of ways of record. (No shots, and your own bar, the pitch are Yes...)STAXThe only focus on the electrostatic headphone system design and manufacturing companies. Long history, dating back to 1938. In addition to static headset early, but also committed to HI-END amplifiers, speakers, CD design and manufacture of machines, but focus on the electrostatic headphones. Headphones for the 007 top products (possibly the best electrostatic headphone in the world, beyond the evaluation limited edition expensive Sennheiser Orpheus), and closed the 4070 headphones (the only closed world electrostatic headphones), and matched 007 amp (has to II generation), followed 4040,3030,2020 system. ) We do not think this brand, and not the ordinary people can play in this game's. ) 007 foreigners at home, cool it Ibid. . . Look very cottage.Finally comes the most expensive limited edition Mito Sennheiser - Sennheiser Great Ormond (Orpheus) 32 million RMB. . No sets of the worldCall, write, nearly one day, finally writing about it, there is also the UK goldring, Switzerland, ERGO, and even the Netherlands, Philips also have top of the headset there, interested to know it can be self-created.This article is about the beginning of burning and the burning of the players, you are If you see this much any funny thing to refrain amiss ah. ,<br />Noise cancelling headphones www.aietao.com<br />
Introduction to literacy headset
Introduction to literacy headset
Introduction to literacy headset
Introduction to literacy headset
Introduction to literacy headset
Introduction to literacy headset
Introduction to literacy headset
Introduction to literacy headset
Introduction to literacy headset
Introduction to literacy headset
Introduction to literacy headset
Introduction to literacy headset

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Introduction to literacy headset

  • 1. From: www.aietao.com<br />Introduction to literacy headphones, the essence of post Source: Shao Feng logThis two-day forum that unusually hot chop suey music, do not know whether China is a musical fashion, technology exchange area emitting a lot of people ask questions which are on the buy side than on the issue, answer some questions in the aboveAfter the surprise, the Internet found a bit rough on headphones, audio (here talk about hard drive MP3 player, MD and CD do not talk about, after all, there now has been taken to the streets carrying a CD drive is not a lot of people ) and amp (headphone amplifier, commonly known as Fannie and Freddie) is not a lot of posts, not the search to the hype of the advertising business software, is a comparison of two or headphones attached Mito pull the wind, really faithful to the entry of small burnnot many posts. Woke up feeling very sore head the morning did not go to school, decided to write some of the headset device outer experience fever, burned a lot of money the next is also small, but between the students, not so much money to burn car audio and music center, and our contacts the most is your favorite MP3, and your little headphones, to collect some information from the Internet and use their own understanding to elaborate, I hope you like it.---------------- HYPERLINK quot; http://www.aietao.com/quot; Reviews and Comparison of noise cancelling headphones ------One. Headphones Category:Classified according to shape: ear (ear canal type headphone) - Ear (also known as ear canal) and semi-ear                    Headset (headphone) - the size of the headset with full-size headphones (full wrap ear)According to Wear mode: stuffing type, ear, after the hanging, head-mountedAccording to the acoustic structure of Category: Open - such as the Sennheiser (sennheiser) PX100, Gaussian PP,                         Closed - such as Sennheiser PX200, Audio-Technica and other high-end HD series peripherals                         Semi-open - Beyerdynamic DT880, Sennheiser MX400, MX500 and so on.According to principles of electro-acoustic Category:1. Moving coil (electric): It is actually a miniature electric speaker, when the current through the coil, the coil becomes an electromagnet, permanent magnet will be rejected or the role of attraction in order to drive the diaphragm produces sound .Limited moving coil drive technology is mature, well-durability, reliability, 99.5% of the headphones are moving coil driver.2. Moving iron: an iron internal ear, the voice coil is located in a permanent magnetic field around the center is called quot; Balanced Armaturequot; precision iron chip. Piece of iron under the effect of the magnetic drive diaphragm sound. Is directly driven diaphragm moving coil, moving iron is connected through a sophisticated rod structure transmitted to the center of a micro diaphragm, resulting in vibration and sound. Since moving iron moving coil headphones headset costs much higher than that, it is generally high-end headphones headset will have a dynamic presence of iron, more well-known is the iron triangle, Etymotic and Shure.3. Static Electricity: its sound is different from the moving coil principle, the basic principle is to be placed with a very thin diaphragm to a static electric field, the input signal changes result from changes in electric field-driven diaphragm sound. ButBecause it is very costly, so manufacturers made very few electrostatic headphones-STAX, described below, will do.In accordance with the use classification: too much. . . Do not do to say, be pointed out that enthusiasts are more concerned about noise reduction headphones for a class called - into active noise reduction (Sennheiser PXC series, the outside world with an active noise reduction device battery, BOSE QC series, directly speaking to install anti-noise source within the headset) and passive noise reduction (SONY several first wife headset).References: ---------------------------------- I'm invincible, it is a dividing line --------- ----------------------------II. Detailed headset parameters:I believe we see the headset when it is more concerned about the shape, and few to pay attention to their arguments, I also believe that the parameters of light from the headphones, a lot of people do not know what is going on in the end they, as ask the vendors, they may only be carried out from the sound quality on your flicker, but what your own source if you are in the headset to play the perfect efficiency (burning faithful called quot; pushquot; ), may know not too much. I also admit that many of the best headphones in the parameters and can not see anything special, and even some good headphones still has appalling argument, but I think that knowledge still need to find out. -Speaker diameter: 40mmBlockResistance: 32 EuroSpiritMinLevel: 6 * 5-54-3dbRated Power: 20mwFrequency range: 20HZ-20000HZSpeaker: φ15mmCable: 1.2MFrequency of the range: 20HZ-20, 000HZImpedance: 32ΩSensitivity: Microphone: 108dB S. P. Lat 1khzRated Power: 3MWPower Capacity: 15MWPlug: Stereo φ 3.5MImpedance (Impedance): Note the difference between the meaning and resistance in direct current (DC) in the world, the role of objects on the current obstacles called resistance, but in alternating current (AC) is in addition to the areas outside the current resistance will hinder, capacitors and inductors will also impede the flow of current, this effect is called reactance to, and our daily said resistance is the resistance and reactance in the vectors and.Sensitivity (Sensitivity): point to the headset input power of 1 mW can be issued when the headphones sound pressure level (sound pressure is expressed in decibels, the greater the larger the volume of sound pressure), it is generally the higher the sensitivity, the smaller the impedance, headphone the easier it out loud, the easier it is driven.Frequency Response (Frequency Response): the sensitivity of the corresponding frequency is the frequency response, the image is drawn into the frequency response curve, the range of human hearing can reach about 20Hz-20000Hz, now a mature technology have reached such a headset requirements.(The above information is known from the Baidu)Simply put, there is a very important word: a headset is easy to push, there is a general principle is that the higher the sensitivity the better push, push the resistance the lower the better. As a result, many people will find a lot of quot; big ear packagequot; has a high resistance - more than 60 of Europe we generally become high-impedance headphones, and generally we have the normal use of the MP3, the standard internal drive 32-ohm impedance, So we buy the headset, you will find a large part of only 32 ohms impedance headphones around, this headset, which we call the quot; perfect push-type headphones straightquot; , for the high-impedance headphones, less than 150 ohms, we can use CD and MD Direct Push, higher, it needs to amp (headphone amplifier). Some people chop suey music forum asked why the high-impedance headphones Direct Push will not, is not only sound small it is not true:According to Ohm's law, we know that power is equal to the square of current multiplied by resistance (we have communication problems into consideration, leaving only, and to consider all of our acoustic instruments such as flow state is a state rather than the other pressure - because we know that in AC circuits,impedance of the quot; straight cross-resistance, low resistance high-passquot; feature), so that the output resistance is too small if we (the source resistance), the output power will be smaller, and we know that an electrical appliances operating at nominal power if the He's the highest degree of frequency response (ie sound) and amplitude sensitivity (that is, the resolution of high frequency and bass) will receive the impact.So simple to say, this headset, we can not direct push, it will affect the sound quality, and make way to amp.Invincible dividing line ------------ ---------------------------------- hematemesis -------------------------III. Some frequently asked questions (often asked to):1. Headset and audio which is better?This is a very common problem, have to admit that the price, sound much better than the headphones. . (Obviously, the poor students can not afford good sound), but the sound quality, said there are distinct differences between the two. Headset feature is strong in high-resolution, while the sound is characterized by strong in the sound field.To some extent, the two are not comparable.2. Moving iron moving coil headphone headset is better than that?The result is not answered. Is characterized by dynamic headphones treble frequency response and clarity of bass frequency response (that is, a higher high and low sensitivity, and discrimination of larger, softer sound big difference), and moving iron headset strong explosive force in the sound (high bass explosive better), so that the dynamic headphones are more suitable for listening to some of the popular and classical, gentle girl and the like, and moving iron headset for Takeo. . . (Of course, the fact is not so classified)3. Noise reduction headphones are of sound quality?Personal experience - is. Can not say that in fact, active noise reduction is a special technique, by continuing around the tuning fork makes the current through a special headset to issue a noise that can interfere with normal voice frequency, so as to achieve noise reduction. I personally feel the overall sound quality is not very different, but my PXC250 active noise reduction of a switch, if the switch is closed, the bass a bit impossible for anyone to receive.4. What is a burn in?Simply put, that is, buy a new car as a reason to pull, burn in order to make you love the new headset with the fastest time through the run-in period to achieve the best use of the state, the new headphone burn in is very important, All my headphones I can hear the difference before and after the burn unit, the other burning machine is also an effective way to extend the service life of the headset. Burn in a lot of technology, especially a lot of people burn in their own technology, time is short and quick, of course, I was not systematically studied. The most common method is to burn 5 days, I generally like this, first find a new headset the sound you usually preferred size, then one-third of the volume of continuous playback with 10 hours rest for 2 hours; then use one-third of the 2 volume 10 hours, rest for 2 hours. Play with the volume of the normal 10 hours for a group to play 2 groups, the break time is 2 hours; the last and then you feel that you just can not accept that the maximum sound playback 4 hours. Complete rest 1 day, you can enter a normal headset using state of the. The music on the burn in the beginning of the 20-hour period, do not use a strong electronic music, because electronic music is not easy to run a new headset breaketh direct the diaphragm, which is very dangerous, the last 4 hours before the use of electronic music to run.Burn in the general common RADIO is better to use as the radio voice of a variety of frequency response, suitable for burning machine. For those who are not demanding in terms of, arbitrarily selected popular music are possible. If you want to compare the intentions to care for your new headset, we must select high-quality classical music, and we all know, download the APE lossless in the Thunder's burn unit interval Tiandie - black poison (new black magic) you will burn in the best choice.5. The music sound quality:This may be the most people want to know one thing, a recognized, legitimate CD WAVE CD drive the amp received interval is the Need for sound effects. For people who use mobile devices, APE lossless interval is a kind of non-processed decoded WAVE interval, so that the sound quality is also near the best, of course, the general capacity to around 50 to 60M. More people, using MP3 or WMA, has a tradition of misunderstanding is the MP3 sound quality sound better than WMA, in fact, this is a misconception. WMA is windows media a special decoding, various extent, is said to MP3 sound quality is better than normal, but with the characteristics of small capacity, but the key problem is that does not support high bit rate WMA Music Converter, which resulted in endless online The 1M something about the situation WMA blind fool. Finally, we use the most comes to MP3, MP3 decoding rate from the highest distinction for the 320K (bps), a song about 10M in size, relatively low-end MP3 sound quality is 128K (bps) size 2,3 M, mid-range of general to 192K, the size of 4M or so.From the compression means, the CBR can be divided into two kinds of compression and VBR compression mode: VBR and CBR encoding different traditions, the traditional CBR (Constents BitRate) is a static bit rate, CBR MP3 sample agreed dead rate is fixed. An MP3 from start to finish for a fixed value, such as 128KBit / s compressed. The VBR is taking a new, dynamic adjustment of the whole technology of the compression method. When the bass segment, VBR will automatically use a lower bit rate, such as 32KBit / s compressed sound quality; as in the treble section will be used when a higher bit rate, such as 224KBit / s compressed sound quality; When high-end Time is of the highest 320KBit / s compressed. VBR MP3 file size is under control, to maximize the MP3 sound quality.------------------------------ --------------- Dividing line invincible sin ----------------------IV. Popular high-end MP3 player1.IPOD: BS Johnson brother many times, as a music enthusiast, it seems to get worse IPOD point of a weapon. Although the price be high, but from the sound quality is not up in terms of professional IPOD music player, but if you are not too harsh on the music, not too harsh on the equalizer, IPOD definitely one of the options is a good. IPOD NANO2.SONY: SONY most famous is the A8 series, the standard A816 to A815 2G and for the classic. As a veteran of the acoustic manufacturers, small Japanese SONY music lovers the world no one really disappointed. SONY bass rendering is very well known, and the A815 is equipped with a strong custom equalizer and surround sound compensation effect, be regarded as one of the Acura in MP3. SONY NWZ-A815, is now below the mark of one thousand yuan.3.IRIVER (iRiver):Frankly, I do not like Gaolibangzai of things, but the concept is indeed in IRIVER refer a veteran audio equipment maker, and the quality is indeed impeccable, had to take it out to recommend. IRVIER to the beautiful sound and powerful background rendering has been widespread concern Shaoyou, more classic with E100 (2G), the last at the most popular and IRVIER cooperation is DISNEY MICKEY SHUFFLE, the majority like pretty gadgets I am afraid the girls can not stand it (small LV is one of them, but when I send you when your birthday present that I enjoyed it.. Ha ha) E100 - Genuine around in 800RMB MIKEY SHUFFLE-two ears turn to SHUFFLE the same time. . . Data from the small LV. . .4.KENWOOD (Kenwood): It seems China is not particularly well known, this veteran of the Japanese electronics expert, but renowned in the world, there are many high-end MP3 it, expensive, style is not unique, but the sound quality is very strong , typical of the practical line of MP3. M1GB5-letter series is a very good sales in Europe and the Americas series of MP3, as in the domestic market is small. M1GB5R-side equivalent to about RMB 8005. Samsung: what is the stick, not to say that sound quality is the main bass, and burning faithful not burn, because the cost is not high, but can be considered best. YP-P3, standard peripherals, Samsung MP3, 1200RMBThere are some U.S. territory such as high fever, ICP and other brands, do not go into details here, because after all, sound quality is not very different. If you have the intention to buy MP3, you can see above this, think fairly comprehensive and professional.6. Innovative (creative)Innovative MP3, MP4. Creative innovation is the production of personal computers and networks for digital entertainment products worldwide leader. In 1981, Creative's founder with the vision that multimedia would people interact with the PC to bring about revolutionary change, then, Creative has come out in Singapore. Burning is the affordable choice IMBA faithful. Innovation zvm  zx, said to spike all the domestic MP3 sound quality ZEN, ancient artifact! ! ! ! !7.B & O:The following detailed description of the professional factory in Denmark. UFO to slightly, flash in the strongest voice!------------------------------- -------------- Tianhundian invincible dividing line ----------------VI. Fever and earphone brands at a glance:To the topic, with an estimated number of people will look at this post look at this part of it, not necessarily all, welcome Replies help me to add.EDIFIER (Walkman), Philips, SONY and so would not it first wife, and game peripherals such as steelseries, ICEMAT seberia, razer large mines no longer discussed here. . .Germany articles:1.Sennheiser (Sennheiser)Founded in 1945, the old headset company, has developed into an international group, the main production of headphones, microphones and other products. Many types of model quality headphones, have produced the world's most expensive electrostatic headphone system ORPHEUS, the current main production base in China, but production of high-end models still in Ireland. Now the main models include the HD650, HD600 high-end headphones (HD580 has been discontinued), HD595, HD555 and other mid-range headphones, and PX100, PX200 folding headphones, MX400, CX500, MX550 ear plugs. Can be described as the most widely (from top to bottom), the most prevalent in the market as a brand. PX100 - Direct Push one of the most classic headphones, bass is very strong PX200 - Direct Push one of the best-selling headsets, tenor treble for classic (coax his wife only...) Sennheiser HD650-ears in the most traditional of a package, enduring HD800 - the latest high-fidelity high-end work for the studio CX500 - with the CX650 and that quot; the sum in mind two brothersquot; 2.Beyer-Dynamic (beyerdynamic)Headphones oldest companies, was founded in early 1924, the founder is the inventor of dynamic headphones. Over the years to the microphone and headphone known in the audio industry and professional circles. At present the main models include high-end headphones DT990, DT880, DT860, in the end of the DT770, DT660, DT440, DT231 and low-end DTX Series (DTX700, 800,900) and so on.Including high-end products manufactured in Germany, the low-end products manufactured in Taiwan.Special DT231, 300 or so, started the first choice, pushing far better than thousands of good headphones! - Bin brother recommended!Beyerdynamic Headphones whole sound clear, straightforward, no landscaping, it is a clear sense of line-oriented, dynamic and clarity of the headset at the same level in the well, and burning faithful often considered the brand.  DT860, pure hand-made, authentic German accent, can not afford to burn. . .                                           DT series are almost a matter of fact way to keep the German people's eyes,                                           However, the appearance of divided attention, focus on content.MB QUART (Goethe) and the U.S. GRADO (Goethe) - maybe has to put together Well, anyway, working togetherMB QUART: The German company was originally called the MB PEERLESS, later renamed the MB QUART, in recent years, the United States MAXXSONICS Corporation. The major products for speakers, car audio, professional audio, including headphones. The headset all local manufacturing in Germany, the most high-end closed-end headphones QP450PRO, under which a QP400, QP250, QP240, QP220, QP200, QP160, QP805 (professional use) and so on. Currently there are low-resistivity upcoming new high-end headphones QP435.MB QUART headphones sound light, a small modification, the high resolving power, high frequency light and elegant.GRADO: fever and earphone for small family factory, more than 50 years. The major products for the headphones and sing the first, with the cartridge base from the historical stage, from the nineties has focused on the headset products. The new flagship product for the GS1000, but the old flagship GRADO RS1 is still a landmark product. Parity models, SR60, SR80 has been popular for many years, received rave reviews, aluminum cavity SR325 is also very famous in enthusiast.GRADO headphones sound particularly energy and enthusiasm, full of personality, widely loved by young people, even in the conservative tastes of Europe, including Britain and Germany, HI-FI sector, are also widely acclaimed.ALESSANDRO GRADO for another company (Goethe Alice) made three headphones: M1, M2, MPRO, is also very famous. ALESSANDRO be customized according to the company they are, compared to the full personalize GRADO headphones, ALESSANDRO style of these three models of a number of neutral calm, GRADO personality a little short. M1 is recognized as the high cost of cheap headphones, and MPRO is recognized as the top overall performance of the headset, and RS1 par.In addition to iGrado GRADO headphones, all of the production in the United States. GRADO-RS1, 6000 多 RMB, can only look at the forum, and the fire is burning can not afford it, this headset metal legends have a strong sense of woodULTRASONE (ultimate)Germany, history is not long, focused on the design and production of headsets. Has launched the super-expensive limited edition EDITION 7 dynamic headphones. The highest model PROLINE 2500, and the limited edition EDITION 9. ULTRASONE headphones have a unique technology and sound, is unique HI-FI product.All produced in Germany. Austria articlesAKG (AKG)Austria's flagship banner, is also the burning of many music enthusiasts, a brand of hot! History of more than 60 years old professional headphone and microphone company. Produced many classic, evergreen-type products, such as the K141, K240, K501, K1000. In recent years, the main product from the high resistance, low resistance adjusted based. The highest model K701, below K601 (K501 has been discontinued), the main series impedance of 55 ohms STUDIO series (including K141S, K171S, K240S, K271S), and a series of folding for the Walkman headphones and ear plugs, to compete for the youth market. Ear which K12P and K14P popular, K24P, K26P, and K27i also popular with young people loved.Currently folding headphones and earbuds have been redesigned, but the basic change in name (to change the color patterns do not change unit), new models for the K412P, K414P, etc., and introduced the first ear headphones K324P.AKG products high in Austria, low-end products in the Chinese OEM.AKG headphones sound, traditionally, mellow, Naiting features. High and low frequency extension is conservative, but Naiting and very good music sense, is the voice of traditional Viennese elegance. AKG K 450, enthusiasts have the best understanding of a portable headset. The equilibrium   K272 HD, I found on the Internet is the most commonly used in Europe and America a studio set high.Danish articlesB & O (Bang & Olufsen)Denmark, the pride of acoustic instruments, the world's top audio-visual brand Bang & Olufsen in Denmark since 1925 Lancaster Ruhr (Struer) inception, has been to continue to create superior combination of technology and emotional appeal of audio and video products, world-renowned, fully embodies the Bang & Olufsen questioned the practices of the corporate vision stretches surprise. After entering China in 2004, Bang & Olufsen has 10 major cities across the country successfully opened 16 stores. Not only for consumers unparalleled audio-visual experience, but also the simple lifestyle of luxury to an extreme interpretation. Bang & Olufsen also with Louis Vuitton, Hyatt Hotels, Audi and other high-end brands to the top yachts in the manufacture of many exciting new areas. APPLE limited official online sales, B & O Limited Edition, said to be pulling the wind, but I do not think so. . Probably a problem with my aesthetic. .The American StoryKOSS (Gauss)The first is to think of the Gaussian, and was established in 1953, established the United States headphone company, from the beginning to the present, always focused on the headset manufacturers. Product strategy will be adjusted in recent years to mainly low-end headphones, but also retained several high-level professional monitoring headphones. PORTA PRO (commonly known as PP), SPORTA PRO, PLUG, KSC75 (linked ears), and other cheap headphones / ear plugs, has become a classic years of the same product. Product line would still have a ESP950 electrostatic headphones, is the only commodity STAX electrostatic headphones other than the system.KOSS headphones sound full of vitality and overall impact, good pop and rock, are typical American sound, loved by American teenagers.KOSS headphones products in addition to high-end models manufactured outside the United States, mostly assembled in China or South Korea. KOSS PP ---- a foul smell Street, Street, and Johnson quickly a Colombian barStrong bass, the popular choice for metal, the price is right, the absolute level of the early burn recommended! ! ! ! KSC75, has been discontinued, and looking very handsomeULTIMATE EARS (Emmett)Founded in 1995, the American Professional Ear Earphones manufacturers, has always been more concerned about burning faithful an iron headset manufacturers, products, custom ear molds, including the need CUSTOM series (including the world's most advanced ear UE 10 PRO), and the SUPER . FI Series (3 STUDIO, 5 EB, 5 PRO). Many of its products for the U.S. pop star to use, widely used for stage performances, and listening. Their products known for the strong low frequency is very strong and full voice for young people. News is the UE has launched a three-unit non-custom earplugs Triple.Fi 10.UE-the-shelf products in China, customized products manufactured in the U.S.. UE Super.fi 5 pro, starting recently, some very soft treble, bass legend'd feel not so strong, but the two-unit moving iron, heard very comfortable. . Burning machine yesterday when she listens to sleep. . . Oh also perhaps sleepyWESTONE (Visa Teng)The company was founded in 1959, mainly produces hearing protection products, such as hearing aids, of course, include listening to music with the ear headphones.The main ear of the ES series products are high (ES3, ES2, ES1), and UM series (UM1, UM2). A single unit and two units UM1 UM2 has a balanced, supple, warm, smooth sound at the end. UM2, as mentioned above, an iron double-unit structure, soft and smooth.SHURE (Shure)SHURE old in the United States has a long history of large companies, known to the microphone, but the products involved in the ear, it is only in recent years. It is the first product into the ear area is E1, and is now the main series of E2, E3, E4, E5, and the latest E500. SHURE With the popularity of its products made earplugs great success.SE210 already on the market, E2C be discontinued. The SE series, SE310, SE420, SE530 (with the E500).SHURE ear with the United States features the voice of the whole, full, warm, low-frequency effective, easy to drive. Fever is definitely the first choice of all the 2,000 headphones, and do not understand. .  SE530-SE series of nearly 3,000 new headphones, if not, then CD, MP3, then I think is unnecessary. SE310, 2000 米 succeed. . . Still resentment. . The brothers have spent time with me about feeling it, I have not touched Shure.ETYMOTIC (Etymotic)In Ear Earphones for development, established in 1983 ETYMOTIC regarded as a pioneer, the main design and manufacture of hearing equipment, including the relevant ear, that is, ER4 and ER6 two series, the idea is clear and easy to remember. ER4 is divided into ER4P, ER4S and ER4B three versions. Most likely to drive the P. The most popular is the ER6 burning faithful, after all, 4 is too expensive, and not push.Etymotic focus on resolving power and transparency of sound, a bit more lean in the bass is pure and detailed quot; listening earquot; , very little coloration. In pursuit of the other manufacturers have double-unit and three units of today, Etymotic stick with a full band is still an iron unit.ER6 here OEM 1500RMB, ER4 has been produced in the United States, almost 3000RMB.* Bin Brother highlight: the new domestic ER6 licensed only 600! 2 year warranty (I have to go back to the whole one day) Silent Hill with the ER6 heard, scary. . Of course, if you are willing to listen to the words of Zhang Zhen ghost story. .BOSE - let alone the Chinese, and it seems no one called in Chinese. .What is not said, Brother Johnson said might as well buy a BOSE audio car, one would like also, morning bloom brother two years ago with the owner of 91 Porsche Car BOSE, a few days ago that fat goose is also equipped with the Nissan whichBOSE sound, a little silent, the price thing. . . In recent years, now want to say is also out of BOSE headphones, including the ear, hanging ears are.Awareness is relatively high, and on ear bose in ear range, organic make Junliang ON EAR brother to tell you how it feels. BOSE which the QC3 (quick confort) series is the most high-end noise canceling headphones, you will find in many airlines, as long as you spend quot; onlyquot; three thousand dollars to get on the plane. . . Days.BOSE headphones for business people, and there is the sound field, BOSE headphones headset with the most loudly of all transitions, after all, people do sound. BOSE QC3, to buy it on the plane. BOSE INTRA, ear, mouth burning faithful quot; top pig mouthquot; Japan PostsAUDIO TECHNICA (Triangle)Founded in 1962, the veteran Japanese companies, products mainly for the singing head and headphones. With the decline of singing the first industry in recent years increasingly focused on the headphones, is Japan's most dynamic headset manufacturer. The headset type, model, grade, is the most diverse Japanese firms were. Ear from the low-end parity (C701, C703, C705, CM3, RE1), Senior earplugs (CM700, CM700TI, EC700, EC700TI), lightweight headphones (FC5, FC7, RE3, ES5, ES7), ear (EQ series EM7, EM9, EW9, etc.), professional monitoring headphones (PRO5, PRO700, M40FS), in the high-end A series of closed headphones, AD series of open headphones, and Muke W series (W1000, W5000), all with user-friendly design, sophisticated technology and personalized voice.In recent years, the quot; limited edition high productsquot; have a special preference for the introduction of the W2002, L3000, A900LTD, A1000 and other limited edition products. Audio-Technica's slogan is quot; have been listening.quot;  Has always stressed a balanced sound and balanced coloration is its most prominent feature of the headset.Audio-Technica headphones in the high-end products produced in Japan or Taiwan, many low-end products manufactured in China. ATH-ON3, it is appropriate for girls, not expensive, only 200. EC7, personal validation, sound very good for listening to Fish Leong. . CK7, CK9, could not find a good map, and are interested to find it online, thousands of iron remember best. ATH-L3000, returned last year when a Shaoyou shop in the Xuanwu seen, the boss will not let me Love. . . . Try to go back to wear a suit this year. . . 16000RMB Beijing out. . ResentmentSony (Sony)Sony headset products, notably the level of two extremes: the high-end, with the high price of the top dynamic headphones R10 (discontinued, up to now are the world's best dynamic headphones), QUALIA 010 ( discontinued), CD3000 (discontinued), SA5000 and other star product, the low end, there are a number of ear plugs and ear linked products (representative of a E888, EX90, etc.). At both ends during the mid-range products, but little attention. In addition, Sony also professional monitoring headphones, DJ headset and so on. SONY latest product EX700 ear is the world's most expensive moving coil ear, but also the current king of moving coil ear, creating a diameter, wearing a number of ways of record. (No shots, and your own bar, the pitch are Yes...)STAXThe only focus on the electrostatic headphone system design and manufacturing companies. Long history, dating back to 1938. In addition to static headset early, but also committed to HI-END amplifiers, speakers, CD design and manufacture of machines, but focus on the electrostatic headphones. Headphones for the 007 top products (possibly the best electrostatic headphone in the world, beyond the evaluation limited edition expensive Sennheiser Orpheus), and closed the 4070 headphones (the only closed world electrostatic headphones), and matched 007 amp (has to II generation), followed 4040,3030,2020 system. ) We do not think this brand, and not the ordinary people can play in this game's. ) 007 foreigners at home, cool it Ibid. . . Look very cottage.Finally comes the most expensive limited edition Mito Sennheiser - Sennheiser Great Ormond (Orpheus) 32 million RMB. . No sets of the worldCall, write, nearly one day, finally writing about it, there is also the UK goldring, Switzerland, ERGO, and even the Netherlands, Philips also have top of the headset there, interested to know it can be self-created.This article is about the beginning of burning and the burning of the players, you are If you see this much any funny thing to refrain amiss ah. ,<br />Noise cancelling headphones www.aietao.com<br />