Parasound HCA-1500a John Curl Design!

FEATURES

• Designed by John Curl


• THX certified by Lucasfilm Ltd.


• Independent power supplies for each channel


• Massive 1 kVA toroid power transformer


• 60,000 µF computer-grade capacitors in power supply


• Multiple polystyrene film bypass capacitors in power supply


• DC Trigger Auto On Feature


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


• Handpicked complementary MOSFET transistors in high voltage driver stage


• 8 complementary pairs of 15 ampere 50 MHz output transistors


• 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


• Gold-plated looping output jacks


• Multiple temperature sensors and silver-cadmium relay protection


• Glass epoxy circuit boards, double-sided for precision


• Custom designed audiophile-grade AC power cord


• Multiple Protection Circuits

SPECIFICATIONS

• 
  Continuous Power Output - Stereo: 
      205 Watts RMS x 2, 20 Hz-20 kHz, 8 Ω, both channels driven 
      315 watts RMS x 2, 20 Hz - 20 kHz, 4 Ω, both channels driven


• 
  Continuous Power Output - Mono: 
      630 watts RMS, 20 Hz - 20 kHz, 8 Ω


• 
  Current Capacity: 
      60 amperes peak per channel


• 
  Slew Rate:
      > 130 V/µsecond


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


• 
  Total Harmonic Distortion:
      < 0.03% at full power; < 0.01 % typical levels


• 
  IM Distortion:
      < 0.03 %


• 
  TIM:
      unmeasurable


• 
  Dynamic Headroom:
      > 1.5 dB


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


• 
  Input Impedance:
      33 k Ω


• 
  Input Sensitivity: 
      1 V for 28.28 V, THX Reference Level; 1.2 V for full output


• 
  S/N Ratio:
      > 110 dB, input shorted, IHF A-weighted


• 
  Damping Factor:
      > 800 at 20 Hz


• 
  Power Consumption: 
      500 watts


• 
  Dimensions: 
      w 19" x h 5 1/4" x d 16", h 5 7/8" with feet


• 
  Net Weight:
      40 lb


• Original Packing - Double-boxed (Inside box in almost perfect shape)