AudX Universal Bass Knob Kit - RJ12 Jack Remote

Installation Video

Take precise control of your bass output with the AudX AB2K Universal Bass Control Knob, designed for amplifiers that use an RJ12 bass remote port. This compact control knob allows you to adjust your subwoofer level on the fly, giving you instant control over your low-end without accessing your amplifier or hidden settings.

The AB2K connects directly to Alpine amplifiers and other compatible amplifiers that utilize an RJ12 connector, making installation simple and plug-and-play with no cutting, splicing, or special wiring required. Once installed, you can fine-tune your bass output from the driver’s seat to match your music, driving conditions, or personal preference.

For a clean, factory-style install, pair the AudX AB2K Bass Control Knob with one of our Trail Grid Pro Switch Blank Mounts. Available in Tall, Small, and Square styles, these in-house mounts allow you to integrate the bass knob directly into an unused factory switch location for a seamless OEM look.

This setup eliminates the need for drilling holes or using adhesive mounts, keeping your interior clean while placing bass control exactly where you want it. Compact, reliable, and easy to install, the AB2K is an ideal upgrade for anyone running an Alpine amplifier or other RJ12-equipped system.

Features

• Universal bass control knob with RJ12 connector
• Designed for Alpine amplifiers and other amplifiers with an RJ12 bass remote port
• Plug-and-play installation with no cutting or splicing required
• Allows driver-accessible subwoofer level adjustment
• Compact, dash-friendly design
• Compatible with Trail Grid Pro Switch Blank Mounts for OEM-style installation

Compatibility

• Works with any amplifier using a RJ12 jack remote input
• Fully compatible with Alpine amplifiers featuring a RJ12 bass knob port

This bass knob provides a simple and effective way to fine-tune your system’s low-end without altering amplifier settings.