Power connections made through a large 4 gauge removable terminal connector. (Dual 4 gauge connectors of the HCCA 275R)

4 Gauge power and ground wire recommended for optimal performance. (Dual 4 gauge connectors of the HCCA 275R)

Minimum 8 Gauge power and ground cable is recommended for acceptable performance. (Use only 4 gauge power wire on the HCCA 275R).

Connect 12V+ to the battery through fuse holder. This connection provides +12V main power to the amplifier.

Power wire must be fused less than 18” from battery.

Ground amplifier to a good chassis ground as close as possible to the amplifier.

Connect REM terminal to remote turn-on lead from source unit. This connection provides +12V power to turn-on the amplifier.

Add Extra Ground wire between the negative terminal of the battery and the chassis.

NOTE: The addition of a ground wire from the battery to the chassis of the vehicle improves the ability of the battery to supply power to the amplifier. This helps especially in newer vehicles, where the current delivery of the factory electrical system was designed only to accommodate electronics supplied by the auto manufacturer.

WARNING: The HCCA 275R has two seperate 4 gauge power and ground inputs. Both pairs of connections must use 4 gauge power wire for proper operation. Failure to do this may damage the amplifier and is not covered under warranty.

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Orion Car Audio HCCA 225R, HCCA 250R, HCCA 275R, 250R & 275R owner manual

250R & 275R, HCCA 225R, HCCA 250R, HCCA 275R specifications

Orion Car Audio has long been a prominent name in the realm of high-performance audio systems, and their HCCA series amplifiers - specifically the HCCA 225R, HCCA 250R, and HCCA 275R - exemplify the brand's commitment to delivering powerful and high-quality sound for automotive enthusiasts. These amplifiers are designed to provide exceptional audio experiences, incorporating advanced technologies and features that enhance performance while ensuring reliability.

The HCCA 225R is a compact yet robust amplifier that delivers an impressive output of 225 watts RMS at 4 ohms, making it ideal for smaller setups while still producing a significant level of power. With a sleek design and a fully adjustable gain control, this model allows users to fine-tune their audio settings to achieve the best sound quality. It also includes a low-pass crossover, which helps to eliminate unwanted frequencies and enhances bass response.

Meanwhile, the HCCA 250R offers a step up in power output, delivering 250 watts RMS at 4 ohms. This amplifier also features a heavy-duty aluminum chassis, ensuring durability and effective heat dissipation during extended use. The HCCA 250R raises the bar with its capability to work seamlessly with subwoofers, providing deep, resonant bass tones that can truly elevate the listening experience. The user-friendly interface includes high and low-level inputs, catering to various installation needs.

For those who demand even more power, the HCCA 275R stands as a formidable option, producing 275 watts RMS at 4 ohms. This model incorporates advanced circuitry designed to reduce distortion and improve sound clarity. The HCCA 275R is equipped with a built-in variable bass boost feature, allowing audiophiles to customize their bass response further, enabling a more personalized sound profile.

All three models are engineered with performance in mind, boasting high-efficiency heat sinks, low-noise operation, and robust power supplies that ensure stability, even under heavy loads. Additionally, the HCCA series amplifiers come with comprehensive protection circuitry to safeguard against short circuits, thermal overload, and DC output, providing peace of mind while delivering high-quality sound.

In summary, the Orion Car Audio HCCA 225R, HCCA 250R, and HCCA 275R amplifiers offer remarkable audio performance characterized by power, versatility, and durability. With their advanced features and robust build quality, they cater to the needs of audiophiles looking to enhance their car audio systems, all while ensuring an exceptional listening experience.