This 2-channel Active LOC with Bass Boost from Axxess has universal applications and enables installers to add aftermarket amplifiers to OEM source units for enhanced sound quality. This advanced technology features incredible input power capabilities, a load selector, clip indicator, enhanced output controls, and noise isolation countermeasures. Add the AX-RM1 external Bass knob for additional subwoofer adjustments. This supplemental product will directly plug into the Axxess PRO series LOC’s and line driver.