HCA-2200II ULTRA HIGH CURRENT AMPLIFIER

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
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