NRPavs   Sold items archive  Technics SU-V303  amplifier details
Sold items archive product details : 
Technics   SU-V303
integrated  amplifier
Technics  SU-V303  stereo  integrated  amplifier
S/N : 42558    SU-V303  right  profile
Technics SU-V303  left  profile
Technics SU-V303  right  profile
Technics  SU-V303  power  switch  detail
Technics SU-V303  back  view
   SOLD   July 2008 on trademe to Te Awanga, Hawkes Bay
S/N: 42558
 
 
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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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