The RFPEQU is a 2-channel universal PEQ (Punch EQ) with built-in line driver that provides bass boost to any aftermarket audio system. DSM DSM utilize 1% tight-tolerances improving efficiency of the circuit, decreases cross-talk from other discrete components and lowers operating temperature. CE Compliant This product fulfills all essential safety and environmental requirements as defined in the European Directives (768/2008 EC). The RFPEQU universal Punch EQ is a remote control bass knob compatible with any branded aftermarket audio system. Adapter features a high-level signal input with auto turn-on capability and adjustable sensitivity to match any audio source. The 2-channel RCA outputs with built-in line driver allow the signal to connect to any amplifier’s input jacks and overcome any noise. Included cable allows remote bass knob to be conveniently installed near driver/passenger for quick and easy adjustment of bass level. Punch EQ2 Onboard equalizer with up to +18dB @ 45Hz and/or up to +12dB boost at 12.5kHz.