Kenwood XR601-1 Reference Fit Mono Power Amplifier with 600W x 1 output at 2 ohms, 1200W maximum power, Bass Knob Included, Speaker Level Inputs and Signal Sensing Turn On - Creative Audio
Amp Remote Level Control
Kenwood KCA-RC01A, Remote Bass Knob for X502-1, X802-5 – AVLeaderz
1 Bass Knob NEW Universal Level Volume Control Knob Car Amplifier Bass RCA | eBay
Kenwood XR1001-1 Reference Fit Mono Power Amplifier with 1000W x 1 output at 2 ohms, 2000W maximum power, Bass Knob Included, Speaker level Inputs and Signal Sensing Turn On - Creative Audio