RJ12 Jack Amplifier Bass Control Knob Kit for AudX plug and play audio wiring system.

Universal Bass Control Knob Kit – RJ12 Jack Amplifier Remote

Take full control of your subwoofer bass with this universal bass control knob kit, designed for amplifiers with a RJ12 jack bass remote input.

If you’ve installed your system using the AudX Plug-and-Play Wiring System and want easy, on-the-fly bass adjustment, this kit delivers a clean, OEM-style solution. The AB2K bass control knob lets you fine-tune subwoofer output directly from the driver’s seat—perfect for changing music styles, road conditions, or personal preference.

Key Features:

• Universal bass remote knob for RJ12 jack amplifiers

• Plug-and-play installation – no cutting or splicing

• Instant subwoofer level control

Amplifier Compatibility:

• Alpine amplifiers (select models with RJ12 bass remote input)

• JL Audio Audio amplifiers (select models with RJ12 bass remote input)

• Stinger Audio amplifiers (select models with RJ12 bass remote input)

Compatibility Note:

This bass control knob is compatible only with amplifiers that use a RJ12 bass remote port.