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Technics   SU-V40
integrated  amplifier
Technics  SU-V40  stereo  amplifier
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Technics SU-V40 image #4
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SOLD Sept 2008 on trademe to Paraparaumu
S/N: FD6704A181
 
 
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 Technics  SU-V40  stereo integrated amplifier                   
Mid 80s model with slimline profile
Rated at 50W RMS    New class AA amplifier circuit   Operating manual


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 :
  -:®:-   1986, 1987 model dark grey colour
  -:®:-   Power rating : 50W RMS at 8 ohms
  -:®:-   Frequency response : 20Hz - 20kHz at rated power
  -:®:-   Total Harmonic distortion THD : < 0.003%
  -:®:-   Phono signal / noise [A-weighted, at 5mV] : 76dB    sensitivity 0.25mV
  -:®:-   Maximum phono input : 160mV
  -:®:-   High level sensitivity : 0.15V
  -:®:-   Dimensions [ W x H x D ]: 430 x 125 x 374mm    Weight : 6.3kg


   SOLD  Sept 2008 on trademe  to Paraparaumu













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