NRPavs   SOLD items 2009 archive 2  Technics SU-V4X stereo integrated amplifier details
SOLD items 2009 archive 2 product details : 
Technics  SU-V4X
 stereo   amplifier

Technics  SU-V4X  stereo  amplifier  :  image #1
Technics  SU-V4X  stereo  amplifier  :  volume control  and  input select buttons
Technics  SU-V4X  stereo  amplifier  :  input connections closeup
Technics  SU-V4X  stereo  amplifier  :  back  view
Technics  SU-V4X  stereo  amplifier  :  top  view
Technics  SU-V4X  stereo  amplifier  :  size  scale
SOLD Dec 2009 on trademe to Bay of Islands
S/N: FF4K27B054
  sitemap        Technics  SU-V4X  stereo integrated amplifier  - dark grey  specifications                     Back to NRPavs Home
 Technics  SU-V4X  stereo integrated amplifier - dark grey / silver control knobs                  
Mid 80s model with large input select buttons and silver knobs to compliment the dark grey front colour
Rated at 65W RMS    New class A amplifier circuit

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

Features :
  -:®:-   1984, 1985 model - dark grey / silver knobs colour
  -:®:-   Power rating : 65W RMS at 8 ohms
  -:®:-   Frequency response : 20Hz - 20kHz at rated power
  -:®:-   Total Harmonic distortion THD : < 0.004%
  -:®:-   Phono inputs : MM / MC moving magnet / moving coil - front switching
  -:®:-   Phono signal / noise [A-weighted, at 5mV] : 77dB    sensitivity: 0.30mV
  -:®:-   Maximum phono input : 150mV
  -:®:-   High level sensitivity : 0.15V
  -:®:-   Tone : source direct  or  via tone controls switch
  -:®:-   Speakers out : A,  B,  A + B
  -:®:-   Muting : front switched muting
  -:®:-   Dimensions [W x H x D]: 430 x 98 x 292mm
  -:®:-   Weight : 7.3kg

   SOLD December 2009 on trademe to Bay of Islands


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