Parasound HCA-2200II - Manual (Page 9)

Special 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