Parasound HCA-2205a 5 Channel Amplifier

Original owner. Light use for 3 channels only since 2009. 
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FEATURES

• Designed
  by John Curl
  


• THX
  certified by Lucasfilm Ltd.
  


• Independent
  power supplies for each channel
  


• Modular
  circuit board layout
  


• Massive
  encapsulated 2 kVA toroid power transformer
  


• 30,000
  uF power supply capacitance for each channel
  


• Multiple
  polystyrene film bypass capacitors in power supply
  


• Can
  be triggered on with an external DC source
  


• Cascode
  Class A input stages with matched J-FET pairs
  


• Hand-picked
  complementary transistors in high voltage driver stage
  


• 8
  complementary pairs of 15 ampere 60 MHz output transistors per channel
  


• Output
  transistors direct-coupled to speakers without LRC networks
  


• DC
  servo direct-coupled audio circuits with 0.8 Hz rolloff
  


• High-bias
  Class A/AB operation
  


• Gold-plated
  metal structure RCA input jacks
  


• Multiple
  protection circuits, temperature sensors and silver-cadmium relay
  protection
  


• Glass
  epoxy circuit boards, double-sided for precision
  


• Hand
  made audiophile-grade AC power cord
  

SPECIFICATIONS

• 
  Continuous
  Power Output - Each Channel: 
  
      220 watts RMS x 5, 20 Hz - 20 kHz, 
  
      8 Ω, all channels driven; 300 watts RMS x 5, 20 Hz - 20
  kHz, 
  
      4 Ω, all channels driven
  


• 
  Current
  Capacity:
  
      60 amperes peak per channel
  


• 
  Slew
  Rate:
  
      130 V/µsecond
  


• 
  Power
  Bandwith: 
  
      5 Hz - 100 kHz, +0/-3 dB at 1 watt
  


• 
  Total
  Harmonic Distortion:
  
      < 0.03 % at full power
  


• 
  IM
  Distortion:
  
      < 0.03 %
  


• 
  TIM:
  
      unmeasurable
  


• 
  Dynamic
  Headroom:
  
      > 1.5 dB
  


• 
  Interchannel
  Crosstalk:
  
      > 80 dB at 1 kHz; > 60 dB at 20 kHz
  


• 
  Input
  Sensitivity:
  
      1 V for 28.28 V, THX Reference Level; 1.5 V for full output
  


• 
  Input
  Impedance: 
  
     33 k Ω
  


• 
  S/N
  Ratio:
  
      > 118 dB, full power; > 96 dB, THX Reference
  


• 
  Level
  Damping Factor:
  
      > 1000 at 20 Hz
  


• 
  Power
  Consumption:
  
      1500 watts
  


• 
  Dimensions:
  
     w 19" x h 7" x d 19 1/2", h 7 5/8"
  with feet


• 
  Net
  Weight: 
  
     85 lb.