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Technics SU-X920 components rack system |
Technics SU-X920 rack back view |
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Technics SU-X920 rack top view |
matching 3-way speakers |
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SOLD
Feb 2008 on trademe
to Kawakawa |
S/Ns: cassette/amp: NA8527A038, tuner FB8420A138 |
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Technics SU-X920 components rack specifications
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Technics SU-X920-KXL tuner, cassette player, amplifier
Compact new class A, combined cassette /amplifier unit with separate tuner midi size
New Class A :
refers to the amplifier
type -
Class A
amplifiers have their
transistors always turned on during each half cycle of the music waveform. It means they are power hungry and
require a big heavy power transformer and large smoothing capacitors. The upside is no crossover distortion
and a high quality sound
Class AB
amplifiers are the
standard - they switch off one half of the transistors when not needed and then turn them on again as the
music waveform requires. This is efficient, so that you get a lot of power for low cost, but the downside is
more distortion as the transistors turn on / off and on again
New Class A
is the Technics amplifier
circuit design where transistors are left on a small amount always - still cheap to make but with much less
crossover distortion and a lot of power for less weight and expense
This is why you see
New Class A
amps still going strong
after 25 or 30 years - owners get a good quality sound and ample power - and so you don't have to turn the
volume up too much to attain average listening levels. They punch above their weight and last and last - I
have been listening to this little system in my workshop and bedroom during final testing and enjoying it very
much.
Features :
-:®:- 1985 model combined cassette player / amplifier with separate tuner
-:®:- Matching three-way speakers model SB-CD920-KXA
-:®:- Power rating : estimated 25W RMS
-:®:- Remote control : no - this is not a remote control model
-:®:- Dimensions [W x H x D ]: 300 x 75 x 250mm
Weight : 9.5kg
SOLD
on
trademe
Feb 2008 to Kawakawa
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