In Case of Trouble

If you suspect a problem with this unit, first recheck all your connections. If only one channel is inoperative, the trouble may be caused by another component or even a defective hookup cable. However, if the same channel is at fault when you reverse the Left and Right channel pair cables to your HCA-806A (turn it off before moving wires), it may indicate trouble within the power amplifier itself. We suggest you contact your authorized Parasound Dealer or Installer, or call Parasound Technical Service if you suspect a problem. We may be able to suggest other diagnostic tests you can easily perform yourself and which will save you a lot of trouble.

If it is determined that the HCA-806A should be returned to Parasound for inspection and possible servicing, you must first call or write to obtain a Return Authorization number. You will also be asked to repack the unit in its original packing and both of its cardboard cartons for proper protection in transit.

Units that arrive without the correct Return Authorization number, without a suitable shipping carton or evidence of improper internal packing will be refused. We cannot accept collect shipments. After repair under warranty, the unit will be returned to you prepaid. If we found no problem with the unit, we will return the unit with collect charges for return shipping charges.

Special Features

lMassive 1.2 kVA Power Transformer

l90,000 uF Computer-grade Capacitors in the Power Supply

lMultiple Polystyrene Film Bypass Capacitors in the Power Supply

lCascode Class A Input Stages with Matched J-FET Pairs

lHand Picked Complementary Transistors in High Voltage Driver Stages

l24 50 MHz, 15 Ampere Output Transistors, Beta-Matched Complementary Pairs

lCan be powered with external DC source

lOutput Transistors Direct-Coupled to Speakers Without LRC Networks

lLinear Tracking, Instantaneous Acting DC Servos

lHigh-Bias Class A/AB Operation

lGold-Plated Metal Structure RCA Input Jacks

lMultiple Temperature Sensors and Silver-Cadmium Relay Protection

lFR-4 Glass Epoxy Circuit Boards, Double-Sided for Precision

lProprietary Quick-Settling Bias Circuits Obviates Warm-Up Period

lCustom Designed Audiophile-Grade AC Power Cord

lConfigurable for Multi-Channel Home Theater, Multi-Zone Stereo, Biamp or Triamp Operation

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Parasound HCA 806A owner manual Case of Trouble
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HCA 806A specifications

The Parasound HCA 806A is a high-performance power amplifier renowned for its exceptional audio quality and robust build. Designed for audiophiles and home theater enthusiasts alike, this amplifier offers impressive power delivery and advanced technologies that elevate the listening experience.

With a solid power output of 85 watts per channel at 8 ohms and 135 watts at 4 ohms, the HCA 806A is capable of driving a wide range of speakers with ease. This makes it an ideal choice for both stereo and multi-channel applications, catering to a variety of sound systems. The amplifier has six channels, allowing for configurations that support surround sound systems or multi-room setups.

One of the standout features of the HCA 806A is its unique design, which incorporates high-quality components to ensure superior sound fidelity. The amplifier employs a Class AB design, striking a balance between the efficiency of Class D and the sonic warmth of Class A. This results in a sound that is both powerful and free from distortion, even at higher volume levels.

The HCA 806A also features a robust power supply, which contributes to its dynamic performance. It utilizes a massive toroidal transformer that minimizes electrical noise and maximizes power delivery. This feature ensures that the amplifier can handle transient peaks without compromising audio quality.

For added convenience, the amplifier is equipped with both balanced XLR and unbalanced RCA inputs, allowing for a flexible connection to various sources. This versatility enables users to integrate the HCA 806A into existing audio systems seamlessly. The amplifier also includes a triggered power function, which allows it to be turned on and off automatically with compatible devices.

Thermal management is another critical characteristic of the Parasound HCA 806A. It features intelligent fan cooling, which protects the unit from overheating during extended use. This advanced cooling system ensures consistent performance and longevity, crucial for high-demand audio environments.

In summary, the Parasound HCA 806A is a well-engineered amplifier that encapsulates quality and performance. With its powerful output, high-fidelity audio reproduction, and thoughtful design features, it stands out as an excellent choice for those seeking an immersive audio experience in their home theater or music setup. Whether used for critical listening or casual enjoyment, the HCA 806A is built to exceed expectations.
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