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HCA-2200MKII

Two independent 1200vA toroid power transformers
Independent power supplies for each channel
for true dual-monaural operation100,000uF computer-grade capacitors in power supply
Multiple polystyrene bypass capacitors in power supply
Direct coupled design uses no inductors or capacitors in the signal path
DC servo direct-coupled audio circuits with 0.3Hz rolloff
Output transistors direct-coupled to speakers without LRC networks
Cascode Class A input stages with matched J-FET pairs
Hand-picked complementary MOSFET transistors in high voltage driver stage
Pure Class A operation up to >6 watts output; Class AB-1 thereafter
24 5OMhz, 15 ampere output transistors, B-matched complements
Balanced input circuits, XLR connectors, separately switched
Gold-plated metal structure RCA input jacks
Silver plated audiophile-grade wiring drivers to outputs
Multiple temperature sensors and silver-cadmium relay protection
FR-4 glass epoxy circuit boards, outputs double clad for high current
Independent transformer windings for driver stage regulators
Proprietary quick-settling bias circuits obviates warmup period
Higher driver rail voltages and independent regulation to prevent sag
Linear tracking, instantaneous acting DC servos
Dual mono circuit topology for superior separation past 20kHz
Precision 1% tolerance Holco and Resista metal film resistors

Omschrijving HCA-2200MKII
Current Capacity continuous: 50 Amp
Current Capacity Peak: 90 Amp

Continuous Power Output - Stereo

20Hz-20kHz, 8 Ohm: 220 watts RMS x 2
20Hz-20kHz, 4 Ohm: 385 watts RMS x 2
20Hz-20kHz, 2 Ohm: 385 watts RMS x 2

Continuous Power Output - Mono

20Hz-20kHz, 8 Ohm 750 watts RMS
20Hz-20kHz, 4 Ohm 1000 watt RMS

Slew Rate >135V/µS
Frequency Response 2Hz-95kHz, +0/-1.5dB
Total Harmonic Distortion
full power < 0.05%
typical levels < 0.009%
Transient Intermodulation Distortion Unmeasurable
IM Distortion < 0.03%
Dynamic Headroom > 1.5dB
lnterchannel Crosstalk
at 1 kHz > 84dB
at 20 kHz > 74dB
lnput lmpedance
RCA-unbalanced 100 kOhm
XLR-balanced 200 kOhm
S/N Ratio >114dB, input shorted, IHF A weighted
Damping Factor > 1000 at 20Hz
Dimensions 19" wide x 7" high x 15" deep
Weight 60 Ibs.
AC Power Requirements 1000 watts
Neupreis: ~2000 Euro

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Hifi Magnatmuseum 2009 C fec