RA1-710.5

Powerful All-in-One System Amplifier

The MB Quart Reference RA1-710.5 five-channel car amplifier is designed to power a complete audio system from a single compact unit. Delivering up to 700 watts of total output, it can run four full-range speakers plus a dedicated subwoofer channel, making it an ideal solution for clean, powerful sound without multiple amplifiers.

Efficient Class D Performance with Bass Control

Built on an efficient Class D MOSFET design, the RA1-710.5 provides strong output with minimal heat and current draw. The subwoofer channel is stable at 1 ohm and delivers up to 350 watts peak power, while the built-in bass control offers adjustable 0–12dB boost for enhanced low-frequency impact. A remote subwoofer level control is included for convenient bass adjustment from the driver’s seat.

OEM Integration and Durable Construction

Designed for easy integration into factory or aftermarket systems, this amplifier features DC sensing technology that allows simple OEM integration using RCA connections. Heavy-duty 4 AWG power terminals and 12 AWG speaker terminals ensure secure connections and reliable power delivery. Built with MB Quart’s high-quality components, the RA1-710.5 is engineered for long-lasting performance and consistent sound quality.

Highlights:

• 5-channel Class D MOSFET car audio amplifier

• 700 watts total peak power output

• Power output: 4x100W + 1x150W @ 2 ohms

• Power output: 4x50W + 1x150W @ 4 ohms

• Subwoofer channel: up to 350W peak @ 1 ohm

• Stable at 1 ohm on subwoofer channel only

• Frequency response: 10Hz–250Hz (sub channel)

• Built-in bass control with 0–12dB boost

• Remote subwoofer level control included

• DC sensing for easy OEM system integration

• 4 AWG power and 12 AWG speaker terminals

What’s in the Package:

• MB Quart Reference RA1-710.5 5-Channel Amplifier

• Remote subwoofer level control

• Mounting hardware

• User manual / installation guide