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920-8B
12”Two-Way,
Full-Range
Transducer
General Description:
The 920-8B loudspeaker system is a two-way
loudspeaker with a 12.0-in. (30.5 cm) low frequency
cone and high temperature voice-coil assembly
coaxially mounted with a wide-dispersion dome
radiator tweeter. The 920-8B utilizes a dual-section
crossover network, centered at 2500 Hz that provides
12 dB/Octave of attenuation for each element outside
its operating range. Clear, intelligible speech and fine
music reproduction are ensured by the extended 90
Hz to 18 kHz frequency response.
Mounting holes are provided on the rear of the woofer
magnet to mount a transformer to operate the
loudspeaker from 70.7/100V distribution lines. The
920-8B’s frame also allows the loudspeaker to be front-
or rear-mounted.
The 920-8B is equipped with a 4 pin phoenix-style
connector which enables easy pass-through wiring of
up to 12 gauge wire. This allows for quick and secure
hookups and long-term reliable operation.
The 920-8B is the ideal loudspeaker when a
high-efficiency, wide-dispersion, easily mounted, full
range loudspeaker is required for in-ceiling or in-wall
installations.
Key Features:
••••• High 100 dB Sensitivity
••••• Wide, Smooth 90 Hz - 18 kHz Frequency
Response
••••• High Power Handling, 200W
••••• Durable Cast Frame
••••• High Output Dome Tweeter
••••• 4 Pin Quick Disconnect Phoenix
Connector
••••• Rear Transformer Mounting Holes
••••• Front or Rear Baffle Installation
Capability
Technical Specifications:
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:ytivitisneSlaixA Bd001
:LPSdetaluclaCxaM Bd821
:gnildnaHrewoP kaePW008,.tnoCW002
:ycneuqerFrevossorC zHk2
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:ecnadepmI smhO0.8 lanimoN
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1
Half Space Measurements
20 100 1000 10000 20000
0
10
20
30
1
10
100
1000
DirectivityFactor(Q)
Frequency (Hz)
DirectivityIndex(DI),dB
2000010000100010020
3.6
20
100
360
Horizontal Vertical
Frequency (Hz)
-6dBBeamwidth(degrees)
U.S.A. and Canada only. For customer orders, contact Customer Service at:
800/392-3497 Fax: 800/955-6831
Europe, Africa, and Middle East only. For customer orders, contact Customer Service at:
+ 49 9421-706 0 Fax: + 49 9421-706 265
Other International locations. For customer orders, contact Customer Service at:
+ 1 952 884-4051 Fax: + 1 952 887-9212
For warranty repair or service information, contact the Service Repair department at:
800/685-2606
For technical assistance, contact Technical Support at: 866/78AUDIO
Specifications subject to change without notice.
12000 Portland Avenue South, Burnsville, MN 55337
Phone: 952/884-4051, Fax: 952/884-0043
www.electrovoice.com
© Telex Communications, Inc. 1/2006
Part Number 38109-865 Rev B
Beamwidth:
Directivity:
Rear
Dimension Drawings:
Architects’ and Engineers’ Specifications
The loudspeaker shall be coaxial with a 12.0-in. (30.5 cm)
low-frequency cone and a high temperature voice coil assembly
coaxially mounted with a wide dispersion dome radiator tweeter. The
loudspeaker shall meet the following criteria: AES power rating shall
be 200 watts of band limited pink noise (90 Hz to 18 kHz, 6 dB crest
factor). Frequency response, uniform from 90 Hz to 18 kHz. Pressure
sensitivity, 100 dB SPLat 1 meter on axis with one watt of band-limited
pink noise from 500 Hz to 3 kHz (ref. 20 ìpa). Minimum impedance,
5.2 ohms. The voice coils shall be LF 2.0 inches (5.1 cm) and HF -
1.5 inches (3.8 cm) in diameter, driven by ferrite magnets. The
loudspeaker shall be 12.3 inches (31.2 cm) in diameter and 5.0 inches
(12.7 cm) deep.The weight shall be 13.5 lbs. (6.2 kg).The loudspeaker
shall be the Electro-Voice®
model 920-8B.
920-8B Part Number
• 301922-100 920-8B, 12” Coaxial Woofer
Performance Match
• D170180 CPS-2T Power Amplifier, 2 x 600W, Output
Transformer
• 500577-000 MA1212 Mixer Amplifier, 120W
• D170263 CPS 2.4 Power Amplifier, 2 x 400W
Accessories
• 1888-3711 TM60 Transformer, 60W
Side
Front
Frequency Response:
200001000010001005020
316
100
10
3.1670
80
90
100
110
Frequency (Hz)
Sensitivity(dB)
Impedance(Ohms)
Half Space
Impedance

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Bosch 9208B Data Sheet

  • 1. 920-8B 12”Two-Way, Full-Range Transducer General Description: The 920-8B loudspeaker system is a two-way loudspeaker with a 12.0-in. (30.5 cm) low frequency cone and high temperature voice-coil assembly coaxially mounted with a wide-dispersion dome radiator tweeter. The 920-8B utilizes a dual-section crossover network, centered at 2500 Hz that provides 12 dB/Octave of attenuation for each element outside its operating range. Clear, intelligible speech and fine music reproduction are ensured by the extended 90 Hz to 18 kHz frequency response. Mounting holes are provided on the rear of the woofer magnet to mount a transformer to operate the loudspeaker from 70.7/100V distribution lines. The 920-8B’s frame also allows the loudspeaker to be front- or rear-mounted. The 920-8B is equipped with a 4 pin phoenix-style connector which enables easy pass-through wiring of up to 12 gauge wire. This allows for quick and secure hookups and long-term reliable operation. The 920-8B is the ideal loudspeaker when a high-efficiency, wide-dispersion, easily mounted, full range loudspeaker is required for in-ceiling or in-wall installations. Key Features: ••••• High 100 dB Sensitivity ••••• Wide, Smooth 90 Hz - 18 kHz Frequency Response ••••• High Power Handling, 200W ••••• Durable Cast Frame ••••• High Output Dome Tweeter ••••• 4 Pin Quick Disconnect Phoenix Connector ••••• Rear Transformer Mounting Holes ••••• Front or Rear Baffle Installation Capability Technical Specifications: esnopseRycneuqerF 1 :)Bd3-( zHk81otzH09 egnaRycneuqerF 1 :)Bd01-( zHk02otzH05 :ycneuqerFssaphgiH.ceR zH06 :ytivitisneSlaixA Bd001 :LPSdetaluclaCxaM Bd821 :gnildnaHrewoP kaePW008,.tnoCW002 :ycneuqerFrevossorC zHk2 :slanimreTtupnI rotcennoCepyT-xineohPnip-4 :ecnadepmI smhO0.8 lanimoN :snoisnemiD htpeDmm721x.aiDmm113 )htpeD"0.5x.aiD"52.21( :thgieWteN ).sbI5.31(gk2.6 :thgieWgnippihS ).sbI2.61(gk4.7 1 Half Space Measurements
  • 2. 20 100 1000 10000 20000 0 10 20 30 1 10 100 1000 DirectivityFactor(Q) Frequency (Hz) DirectivityIndex(DI),dB 2000010000100010020 3.6 20 100 360 Horizontal Vertical Frequency (Hz) -6dBBeamwidth(degrees) U.S.A. and Canada only. For customer orders, contact Customer Service at: 800/392-3497 Fax: 800/955-6831 Europe, Africa, and Middle East only. For customer orders, contact Customer Service at: + 49 9421-706 0 Fax: + 49 9421-706 265 Other International locations. For customer orders, contact Customer Service at: + 1 952 884-4051 Fax: + 1 952 887-9212 For warranty repair or service information, contact the Service Repair department at: 800/685-2606 For technical assistance, contact Technical Support at: 866/78AUDIO Specifications subject to change without notice. 12000 Portland Avenue South, Burnsville, MN 55337 Phone: 952/884-4051, Fax: 952/884-0043 www.electrovoice.com © Telex Communications, Inc. 1/2006 Part Number 38109-865 Rev B Beamwidth: Directivity: Rear Dimension Drawings: Architects’ and Engineers’ Specifications The loudspeaker shall be coaxial with a 12.0-in. (30.5 cm) low-frequency cone and a high temperature voice coil assembly coaxially mounted with a wide dispersion dome radiator tweeter. The loudspeaker shall meet the following criteria: AES power rating shall be 200 watts of band limited pink noise (90 Hz to 18 kHz, 6 dB crest factor). Frequency response, uniform from 90 Hz to 18 kHz. Pressure sensitivity, 100 dB SPLat 1 meter on axis with one watt of band-limited pink noise from 500 Hz to 3 kHz (ref. 20 ìpa). Minimum impedance, 5.2 ohms. The voice coils shall be LF 2.0 inches (5.1 cm) and HF - 1.5 inches (3.8 cm) in diameter, driven by ferrite magnets. The loudspeaker shall be 12.3 inches (31.2 cm) in diameter and 5.0 inches (12.7 cm) deep.The weight shall be 13.5 lbs. (6.2 kg).The loudspeaker shall be the Electro-Voice® model 920-8B. 920-8B Part Number • 301922-100 920-8B, 12” Coaxial Woofer Performance Match • D170180 CPS-2T Power Amplifier, 2 x 600W, Output Transformer • 500577-000 MA1212 Mixer Amplifier, 120W • D170263 CPS 2.4 Power Amplifier, 2 x 400W Accessories • 1888-3711 TM60 Transformer, 60W Side Front Frequency Response: 200001000010001005020 316 100 10 3.1670 80 90 100 110 Frequency (Hz) Sensitivity(dB) Impedance(Ohms) Half Space Impedance