Parasound HCA-2200 mkII

Parasound HCA-2200 II in very good condition. Very clean sounding amplifier with lots of power. 

HCA-2200II ULTRA HIGH CURRENT AMPLIFIER. Our premiere amplifier created by legendary designer John Curl has been called by Stereophile,"...a benchmark product against which other amplifiers can be measured."

FEATURES

• Two independent 1200vA toroid power transformers
• Independent transformer windings for driver stage regulators
• Higher driver rail voltages and independent regulation to prevent sag
• 100,000uF computer-grade capacitors in power supply
• Multiple polystyrene bypass capacitors in power supply
• Cascode Class A input stages with matched J-FET pairs
• Hand picked Mosfets in high voltage driver stages
• 24 5OMhz, 15 ampere output transistors, B-matched complements
• Output transistors direct-coupled without inductors
• DC servo direct-coupled audio circuits with 0.3Hz rolloff
• Linear tracking, instantaneous acting DC servos
• Pure Class A operation up to >6 watts output; Class AB-1 thereafter
• Balanced input circuits, XLR connectors, separately switched
• Gold-plated metal structure RCA input jacks
• Multiple temperature sensors and silver-cadmium relay protection
• FR-4 glass epoxy circuit boards, outputs double clad for high current
• Dual mono circuit topology for superior separation past 20kHz
• Proprietary quick-settling bias circuits obviates warmup period
• Silver plated audiophile-grade wiring drivers to outputs
• Precision 1% tolerance Holco and Resista metal film resistors

SPECIFICATIONS

• Continuous Power Output - Stereo
      250 watts RMS x 2, 20 Hz-20 kHz, 8 Ω 
      385 watts RMS x 2, 20 Hz-20 kHz, 4 Ω 
      385 watts RMS x 2, 20 Hz-20 kHz, 2 Ω
• Continuous Power Output - Mono 
      750 watts RMS, 20 Hz-20 kHz, 8 Ω 
      1000 watts RMS, 20 Hz-20 kHz, 4 Ω
• Current Capacity 
      50 amperes continuous 
      90 amperes peak
• Slew Rate 
      >135 V/µsecond
• Frequency Response 
      2 Hz-95 kHz, +0/-1.5 dB
• Total Harmonic Distortion 
      < 0.05% at full power 
      < 0.009% typical levels
• IM Distortion 
      < 0.03%
• TIM 
      Unmeasureable
• Dynamic Headroom 
      > 1.5dB
• lnterchannel Crosstalk 
      > 84 dB at 1 kHz 
      > 74 dB at 20 kHz
• Input Impedance 
      100K Ω/RCA-unbalanced, 200K Ω/XLR-balanced
• S/N Ratio 
      > 114 dB, input shorted, IHF A weighted
• Damping Factor 
      > 1000 at 20 Hz
• Dimensions 
      19" wide x 7" high x 15" deep
• Weight 
      60 lbs. net
• AC Power Requirements 
      1000 watts