Description

ARC Audio LR2 Programmable DSP Level Controller

The ARC Audio LR2 is a programmable single-function remote controller designed to provide direct, intuitive control over select ARC Audio DSPs and DSP amplifiers. As part of the ARC Audio DNA DSP ecosystem, the LR2 allows users to assign one clearly defined control function—such as master system volume, subwoofer level, or bass boost—to a single physical knob for quick, on-the-fly adjustment without accessing software.

What sets the LR2 apart is its ability to control up to two ARC Audio DSPs simultaneously, making it an ideal solution for complex multi-processor systems or installations where system-level adjustments must remain perfectly synchronized. When connected to a single processor, the LR2 functions as a dedicated control interface. With the addition of a second compatible and isolated data cable (sold separately), it can manage two processors at the same time with identical behavior.

All LR2 functions are fully programmable through the ARC Audio DNA DSP PC software, allowing installers and users to precisely define the control assignment and behavior within the DSP interface. This ensures predictable operation and seamless integration into both OEM-upgrade and full custom DSP-based systems.


The LR2 includes a 5-meter (20-foot) data cable for connection to one processor and comes pre-mounted to a sturdy, branded right-angle bracket for quick and secure installation. For custom applications, the control knob and circuit board can be easily removed from the bracket, providing flexible mounting options to suit a wide range of vehicle interiors.


The LR2 is currently compatible with all ARC Audio stand-alone DSPs and DSP amplifiers, making it a versatile and practical control solution for modern ARC Audio systems.

**Note: To control 2 DSPs, you will need to purchase another LR-2 cable.**