Manuals / Parasound / Home Audio / Stereo Amplifier

Parasound HCA-1500A Rear Panel Bridged Mono Switch, Bridged Mono Speaker Connection, AC Line LED

Models: HCA-1500A

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Rear Panel Bridged Mono Switch

Select Mono (up) or Stereo (down) as marked on the rear panel. The main power should be switched off before moving this switch. If you accidentally leave the Mono Bridge switch in the Mono (up) position, you will find stereo output will be weak and distorted.

Bridged Mono Speaker Connection

In the bridged mono mode, connect the speaker to only the left red positive terminal and the right red positive terminal. In the bridged mode the right channel’s red terminal becomes positive, and the left channel’s red terminal becomes negative. Do not use either of the black negative terminals. You may also use a single standard 3/4" (19 mm) dual banana plug for the mono bridge connection to the two inner red positive terminals.

AC Power Connections and AC Grounding

Before you connect the AC cord, make sure you amplifier's power switch is in the off position and the external DC trigger is off. If possible, plug your amplifier directly to an AC wall outlet. Do not connect the amplifier to the accessory AC outlet on your preamplifier or processor because the amplifier's current draw exceeds the ratings of most preamplifier’s power switches and power cords. If you use an external AC line conditioner or surge suppressor, make sure it can withstand the current draw of the amplifier.

DC Trigger Connection

This connector provides a way to trigger your amplifier on with an external DC voltage source ranging from + 9 Vdc to +12 Vdc. With the main power switch on the off (down) position, the amplifier can be turned on with voltage from any external DC source such as the +12 Vdc trigger from the Parasound P/SP-1500. Since it is optically coupled, the DC trigger only requires 15 mA of current to activate the circuitry and turn on the amplifier.

Operating Your HCA-1500A

Power Switch

Manual Turn On

Press the upper side to turn the unit on manually; press the lower side to turn the unit off.

Automatic Turn On

When the power switch is in the off position, the power amplifier can be turned on with an external DC voltage applied at the DC trigger connector on the rear panel. (See above)

AC Line LED

The AC line LED on the front panel of your amplifier will illuminate whenever AC is present at the AC connector. This LED indicates that the AC cord is connected and power is applied to the amplifier.

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Parasound HCA-1500A Rear Panel Bridged Mono Switch, Bridged Mono Speaker Connection, AC Power Connections and AC Grounding
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HCA-1500A specifications

The Parasound HCA-1500A is a highly regarded power amplifier that has earned a reputation for delivering exceptional audio performance at an affordable price. This robust amplifier is particularly popular among audiophiles and home theater enthusiasts for its excellent build quality, advanced technology, and impressive sound reproduction capabilities.

One of the standout features of the HCA-1500A is its power output. It delivers 150 watts per channel into 8 ohms and up to 225 watts per channel into 4 ohms, ensuring that it can drive a wide range of speakers with ease. This level of power makes it suitable for both stereo and multi-channel setups, allowing for a versatile listening experience. The amplifier's high current capability is particularly noteworthy, providing the necessary muscle to handle transient peaks and dynamic musical passages without distortion.

The HCA-1500A employs a fully discrete output stage, which helps minimize signal distortion and enhances sonic clarity. This architecture is complemented by high-quality components, including a toroidal transformer and large filter capacitors, which contribute to its impressive performance. The use of a toroidal transformer not only helps to keep the amplifier compact but also reduces electromagnetic interference, leading to cleaner sound reproduction.

In addition to its impressive technical specifications, the HCA-1500A features a user-friendly design. The rear panel includes a variety of input options, including RCA and XLR connections, allowing for flexibility in connecting different audio sources. Its robust construction, with a heavy-duty chassis and professional-grade binding posts, ensures durability and reliability over time.

Another key characteristic of the HCA-1500A is its thermal management system. The amplifier is designed with ample ventilation and heat sinks to dissipate heat efficiently, allowing for sustained performance even during extended listening sessions. This attention to thermal design ensures that the amplifier remains cool and operates within its optimal performance range.

Overall, the Parasound HCA-1500A stands out as a powerful, reliable, and sonically rich amplifier. Its combination of high power output, discrete circuitry, and thoughtful engineering make it a compelling choice for anyone seeking to enhance their audio system's performance. Whether used in a dedicated home theater or a high-fidelity music setup, the HCA-1500A is sure to impress with its ability to deliver a dynamic and immersive listening experience.