This Half-DIN 4-Band Parametric Equaliser with Subwoofer Gain control and Bluetooth Audio Connectivity from Lanzar has a source/AUX/Bluetooth input selector, rotary fader and an output volume control as well as a subwoofer output volume control. Preamp line AUX inputs are via RCA jacks. Lanzar HTG50EBT Half-DIN 4-Band Parametric Equaliser with Subwoofer Gain Control and Bluetooth Audio Connectivity:Half-DIN 4-band parametric equaliser9V RMS preamp outputPreamp line AUX inputs via RCA jacks3-input source selectableInput gain adjustmentsBluetooth audio connectivityRCA AUX input jackSource/AUX/Bluetooth input selectorRotary faderOutput volume controlSubwoofer output volume controlBlue light illumination12V DC with remote triggerIncludes mounting hardware