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If All Else Fails...
Call your Parasound dealer or Parasound Technical Service. We can suggest other diagnostic tests you
can easily perform. If we determine that your amplifier should be returned to Parasound or an
Authorized Parasound Warranty Center for inspection and possible servicing, call Parasound for the
location of a warranty center near you. If you choose to send it to Parasound, contact us to obtain a
Return Authorization (RA) number. You will be asked to repack the unit in its original packaging
including the additional outer box for protection during transit. The Return Authorization number
must be clearly marked on the outer carton only. You should ship the unit by UPS with adequate
insurance and a copy of your purchase receipt to validate your ownership.
Units that arrive without your specific Return Authorization number, without a suitable shipping
carton or with evidence of improper internal packing must be refused. We do not accept collect
shipments. After repair under warranty, the unit will be returned to you via prepaid UPS. In the case
of a non-warranty repair, contact us and we will advise you of the repair charges before you ship the
unit to us. The same packing and Return Authorization number requirements apply.
Special Features for the Parasound HCA-2205A
• Designed by John Curl
• THX certified by Lucasfilm Ltd.
• Independent power supplies for each channel
• Modular circuit board layout
• Massive encapsulated 2 kVA toroid power transformer
• 30,000 uF power supply capacitance for each channel
• Multiple polystyrene film bypass capacitors in power supply
• Can be triggered on with an external DC source
• Cascode Class A input stages with matched J-FET pairs
• Hand-picked complementary transistors in high voltage driver stage
• 8 complementary pairs of 15 ampere 60 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
• Hand made audiophile-grade AC power cord