presentasi b. ingggris

2. A music centre (or center) is a type of integrated audio system for home
use, used to play from a variety of media. The term is usually used for
lower end or sub-high fidelity or hi fi equipment. The term itself has
been in use since the 1970s, though in more recent times the terms
mini, micro or midi hi-fi, or integrated hi-fi have been preferred. The
distinguishing feature compared to high-end equipment is that there is
usually only one main unit, with maybe a pair of detachable or separate
loudspeakers, though some equipment also has these built into the main
unit.

4. MUSIC CENTRE PART’S
1. RADIO TUNER
2. TAPE
3. CD PLAYER

5. 1. RADIO TUNER
A tuner is a subsystem that receives radio frequency (RF) transmissions like
radio broadcasts and converts the selected carrier frequency and its associated
bandwidth into a fixed frequency that is suitable for further processing usually
because a lower frequency is used on the output.
2.
TAPE
commonly called cassette tape, audio cassette, or simply tape, is a magnetic
tape recording format for audio recording and playback.
3.
CD PLAYER
CD player is an electronic device that plays audio compact discs.

7. pre-amplifier
A pre-amplifier (preamp) is an electronic amplifier that prepares a
small electrical signal for further amplification or processing. A
preamplifier is often placed close to the sensor to reduce the effects
of noise and interference.
Power-amplifier
a relative term with respect to the amount of power delivered to the
load and/or sourced by the supply circuit