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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 |
SOLD Feb 2008 on trademe to Kawakawa | S/Ns: cassette/amp: NA8527A038, tuner FB8420A138 |
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sitemap Technics SU-X920 components rack specifications Back to NRPavs Home
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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