Generic Universal Bass Control Knob 11.48ft Cable

Universal Bass Control Knob gives you fingertip control of subwoofer output through a 4-pin plug and an 11.48ft copper-core extension cable, so you can fine-tune low frequencies from the driver's seat.

This compact, plug-and-play bass controller solves the common problem of mismatched low-frequency levels between a head unit and a powered subwoofer or amplifier. Built with a pure copper core and durable PVC insulation, the unit provides stable signal transmission and a smooth rotary action. The extended cable length lets you position the knob in the most convenient spot on your dash or center console without visible cable clutter.

How does this bass knob fix uneven subwoofer levels?

Many factory or aftermarket systems lack a simple way to balance subwoofer output with the rest of the audio system. This controller attaches directly to amplifiers that include a 4-pin remote bass control port, giving you instant control over low-frequency gain. Adjustments are immediate and repeatable, so you can quickly dial in the right amount of bass for different music styles or passengers.

• Connects to the amplifier’s 4-pin bass control port for direct low-frequency adjustment
• Rotary knob provides smooth, linear control to reduce bass boom or add punch
• Immediate on-the-fly tweaks—no need to stop and change settings at the head unit

Will this work with my car amplifier?

The controller is designed to be compatible with most amplifiers that provide a 4-pin remote bass control interface. Before purchasing, confirm your amplifier manufacturer lists an external bass control or 4-pin bass remote jack in the manual. If your amp lacks that port, this product won't be compatible.

• Compatible with amplifiers that include a 4-pin bass remote input
• Not compatible with amps that have no external bass remote connector
• Check your amplifier manual or model specifications before buying

How easy is the installation and placement?

Installation is designed to be straightforward: plug the 4-pin connector into the amplifier and mount the knob where it’s most useful. The 3.5m (11.48ft) copper-core extension cable lets you route the wire discreetly behind panels or under trim for a factory-like appearance. No soldering or special tools are required for most standard setups.

• Plug-and-play 4-pin connector—no cutting or splicing for supported amps
• 11.48ft cable allows flexible mounting positions within the cabin
• Copper core and PVC insulation ensure reliable signal and long-term wear resistance

What are the build quality and daily-use benefits?

The cable uses a pure copper core for consistent electrical transmission and a PVC jacket to resist wear from bends and routing. The knob’s rotation is engineered for smooth, repeatable adjustments so you won’t overshoot desired bass levels. These details make the controller suitable for daily commuting, long trips, and systems that receive frequent listening-level changes.

• Pure copper core for stable, low-loss signal transfer
• PVC insulation protects wiring during installation and use
• Durable rotary mechanism built for regular adjustments without drift

Who is this for: Drivers and audio enthusiasts who want immediate, on‑the-go control of subwoofer levels without modifying the head unit settings. It’s best for vehicles with an aftermarket or factory amplifier that includes a 4-pin bass remote input and for anyone who prefers a simple, unobtrusive knob to tweak bass while driving. If your amplifier supports an external bass control, this product gives a reliable, low-effort way to customize low-frequency output for different music, passengers, or road conditions.