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Pioneer D-23 Руководство по эксплуатации

MULTI-AMPLIFIER SYSTEMS

In
order
to
faithfully
source with true high fidelity, the audio reproduc­
tion equipment must have negligible distortion,
a large
dynamic
range,
response. Rather than depending on one amplifier
to reproduce the whole frequency spectrum, divid­
ing the frequencies up into distinct ranges, and
using independent, w ell balanced, speakers for each
frequency range, makes it possible to reproduce a
m uch more stable sound.
4-WAY MULTI-AMPLIFIER SYSTEMS (Fig. 1)
A
4-way system consists of 4 independent stereo
power
amplifiers,
and
woofers,
2
low mid-range speakers,
range speakers, and
2
tweete rs).
Stereo power amplifier
Stereo
preamplifier
1. For high range frequency
2. For high to mid-range frequency
3. For mid- to low range frequency
4. For I ow range frequency
3-WAY MULTI-AMPLIFIER SYSTEMS (Fig. 2)
A
3-way system requires 3 independent stereo
power
amplifiers
and
2
woofers,
mid-range speakers, and
Stereo power amplifier
Stereo
preamplifier
1. For high range frequency
2. For mid-range frequency
3. For low range frequency
reproduce
any
program
and
a wide frequency
(2
4 pairs
of
speakers
2
high mid­
Tweeter
High
mid-range
speaker
Low
mid-range
speaker
Woofer
Fig.
(2
3
pairs
of
speakers
2
tweeters).
Tweeter
Mid-range
speaker
Woofer
Fig.
2-WAY MULTI-AMPLIFIER SYSTEMS (Fig. 3)
A
2-way system employs
a pair of woofers (for low to mid-range frequency),
and a pair of tweeters (for mid-to high range fre­
quency).
Stereo
preamplifier
1. For high range frequency
2. For low range frequency
Systems Employing Pre-main, or Integrated
Amplifiers (Fig. 4)
It
is also possible to build a multi-amplifiers system
employing a pre-main or integrated amplifier if it
has provision for independent use of its preampli­
fier and power amplifier functions.
1
1.
For high range frequency
2.
For mid-range frequency
3. Premain amplifier (or integrated amplifier)
for low range frequency
Note: These diagrams show left channel (or right channel)
only.
2
2
stereo power amplifiers,
Stereo power amplifier
Tweeter
Woofer
Fig. 3
Stereo power amplifier
Tweeter
Mid-range
speaker
Woofer
Fig. 4