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Special Features for the Parasound HCA-1205A and HCA-1203A
• Designed by John Curl
• THX certified by Lucasfilm Ltd.
• Independent power supplies for each channel
• 1 kVA power transformer in the HCA-1203A
• 1.6 kVA power transformer in the HCA-1205A
• Modular circuit board layout
• Massive toroid power transformer
• 20,000 uF power supply capacitance for each channel
• Multiple polystyrene film bypass capacitors in power supply
• Can be powered with external DC source
• Cascode Class A input stages with matched J-FET pairs
• Hand-picked complementary transistors in high voltage driver stage
• 6 complementary pairs of 15 ampere 50 MHz output transistors per channel
• 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
• Multiple protection circuits, temperature sensors and silver-cadmium relay protection
• Glass epoxy circuit boards, double-sided for precision
• Custom designed audiophile-grade AC power cord
