HCA-1205A

About the HCA-1205A

The Parasound HCA-1205A is a 5-channel power amplifier known for its robust power output and high fidelity sound quality. It delivers 140 watts RMS per channel into 8 ohms and 200 watts RMS per channel into 4 ohms, with a peak current capacity of 45 amps per channel. The amplifier features a wide frequency response from 5 Hz to 100 kHz (+0/-3 dB at 1 watt), very low total harmonic distortion (<0.03% at full power), and a high signal-to-noise ratio (>117 dB at full power). It has a damping factor greater than 800 at 20 Hz, ensuring tight control over speaker drivers. The HCA-1205A is THX Ultra-certified and designed with direct-coupled circuitry, eliminating capacitors and inductors in the signal path for improved audio purity. It includes advanced features such as a slew rate greater than 130 V/µsecond and dynamic headroom over 1.5 dB. The unit measures 17 1/4" wide x 5 1/4" high x 19" deep and weighs 46 pounds. It was introduced around 1999 and is now discontinued. The amplifier is highly regarded for both home theater and two-channel music applications, offering excellent soundstage and clarity.