Parasound A51

This is a fabulous multichannel amplifier, built like a tank, and sounds incredible even for two channel listening.  I do not have original box but it will be extremely well packed.  I’ve added photos.  Unit is without any marks that I can see, more like a 9/10. Specifications are as follows:

• ·        
  Circuitry
  designed by legendary John Curl

  ·        
  THX
  Ultra2 certified

  ·        
  High
  bias Class A/AB operation

  ·        
  Balanced
  inputs with discrete circuits and XLR connectors

  ·        
  Direct
  Coupled - no capacitors or inductors in signal path

  ·        
  Complementary
  MOSFET driver stage and JFET input stage

  ·        
  40
  beta-matched 15 amp, 60 MHz bipolar output transistors

  ·        
  2.2
  kVA encapsulated toroid power transformer with independent
  
    secondary windings for each channel

  ·        
  164,000
  μF power supply filter capacitance

  ·        
  DC
  Servo and relay protection circuits

  ·        
  AC
  present, channel status, high temperature indicators

  ·        
  Heavy-duty
  24k gold-plated 5-way speaker terminals

  ·        
  Gold-plated
  RCA input jacks; ground lift switch

  ·        
  Auto
  turn-on by 12v trigger or audio signal

• 250 watts RMS x 5, 20 Hz
  - 20 kHz, 8 Ω, all channels drive

• 400 watts RMS x 5, 20 Hz - 20 kHz, 4 Ω, all channels driven