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Sold items archive product details :
Technics
SU-V303
integrated amplifier
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Technics SU-V303 stereo integrated amplifier |
S/N : 42558 SU-V303 right profile |
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Technics SU-V303 left profile |
Technics SU-V303 right profile |
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Technics SU-V303 power switch detail |
Technics SU-V303 back view |
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SOLD
July 2008 on
trademe
to Te Awanga, Hawkes Bay |
S/N: 42558 |
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Technics SU-V303 stereo integrated amplifier specifications
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Technics SU-V303 stereo integrated amplifier
1983 model with vertical selector knobs
Rated at 40W RMS New class A amplifier circuit
Known issues :
Missing letters for power on switch and numbers 6 - 8, some letters
of volume - both controls are self explanatory
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.
The MC moving coil phono circuit is still being repaired, it uses obsolete FETs which are to be sourced from
overseas. The unit is fully tested and the status of this repair will be made known to anyone requesting this
amplifier by procurement form or when we list on trademe. It will function perfectly on cd player input or the
matching ST-S6 tuner also on offer
Features :
-:®:- 1983 model silver colour New Class A amplifier circuit
-:®:- Power rating : 40W RMS at 8 ohms
-:®:- Frequency response : 20Hz - 20kHz at rated power
-:®:- Total Harmonic distortion THD : < 0.005%
-:®:- Phono signal / noise [A-weighted, at 5mV] : 82dB
sensitivity 2.5mV
-:®:- Maximum phono input : 170mV
-:®:- High level sensitivity : 0.15V
-:®:- Dimensions [ W x H x D ]: 430 x 125 x 374mm
Weight : 6.7kg
SOLD
July 2008 on
trademe
to Te Awanga, Hawkes Bay
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