Parasound HCA-1201A specification

Table of Contents
Important Safety Instructions	3
HCA-1201A Front and Rear Panel Drawings	4
Introduction	5
Installing and Rack Mounting Your Amplifier	5
Ventilation Requirements for Your Amplifier	5
Making Connections to Your Amplifier	6
Speaker Connections	6
AC Power Connections and AC Grounding	7
DC Trigger Connection	7
Operating Your HCA-1201A	8
Maintaining Your Parasound Amplifier	8
In Case of Trouble	8
Parasound HCA-1201A Specifications	9

Special Features for the Parasound HCA-1201A

THX Ultra certified by Lucasfilm Ltd. 280 VA Toroid Power Transformer 20,000 uF filter capacitance

Multiple polystyrene film bypass capacitors in power supply

Output relay can be activated with external DC source Cascode Class A input stages with matched J-FET pairs Complementary transistors in high voltage driver stage 12 ampere 50 MHz output transistors

Output transistors direct-coupled to speakers without LRC networks

Direct-coupled audio circuits with 0.8 Hz rolloff

High-bias Class A/AB operation

Gold-plated RCA input jacks Multiple protection circuits

Glass epoxy circuit boards, double-sided for precision

Audiophile-grade AC power cord

The Parasound HCA-1201A is manufactured under license from Lucasfilm Ltd. Lucasfilm and THX are trademarks of Lucasfilm Ltd.

-2-

HCA-1201A specifications

The Parasound HCA-1201A is a high-performance, single-channel power amplifier that stands out for its remarkable power output, sound quality, and robust construction. Designed for both audiophiles and professionals, this amplifier is a testament to Parasound's dedication to delivering superior audio performance.

One of the notable features of the HCA-1201A is its powerful amplification capability. It delivers up to 250 watts into 4 ohms and 150 watts into 8 ohms, making it suitable for driving a wide variety of speakers with ease. This high power output allows for dynamic sound reproduction, enabling the amplifier to handle peaks in music without distortion or loss of clarity.

The HCA-1201A utilizes an advanced Class AB circuitry. This technology combines the benefits of Class A and Class B designs, providing low distortion and high efficiency. The result is an amplifier that can deliver a warm, rich sound while maintaining excellent dynamic range. The build quality is also impressive, with a solid metal chassis designed to minimize vibrations and enhance sonic performance.

A key characteristic of the HCA-1201A is its dual mono design, which means that each channel has its power supply and amplifier section. This reduces crosstalk and allows for better separation of sound channels, contributing to an immersive listening experience. Additionally, the amplifier features large filter capacitors to ensure stable power delivery, even during intense musical passages.

The amplifier is equipped with a host of protection features, including short-circuit protection, thermal overload protection, and DC offset safeguards. These features help ensure the longevity and reliability of the device, making it suitable for both home theater and professional audio applications.

The Parasound HCA-1201A also includes balanced XLR and unbalanced RCA inputs, providing flexibility in connecting various audio sources. The signal-to-noise ratio is commendably high, ensuring that your audio remains clear and free from unwanted noise.

In conclusion, the Parasound HCA-1201A is a powerful, high-quality amplifier that combines robust design with advanced audio technologies. Whether used in a home audio setup or a professional environment, it offers exceptional performance that appeals to serious music enthusiasts and sound professionals alike. Its unique features and reliable performance make it a valuable component in any audio system.