IENG Universal Bass Control Knob for Amp

Real-Time Bass Tuning at Your Fingertips
Fine-tune your subwoofer’s output instantly from the driver’s seat. The extended 13FT cable allows you to adjust bass levels on the move without needing to touch the amplifier.
Wide 4-Pin Amplifier Compatibility
Designed for most aftermarket amps with standard 4-pin remote ports, this controller ensures seamless communication between your head unit and subwoofer for a balanced, customized sound experience.
Durable Copper Signal Cable
Built with high-purity copper and reinforced insulation, it delivers clear audio transmission and long-lasting performance. Resistant to heat and daily wear, it ensures consistent reliability.
Fast, Hassle-Free Installation
Simply plug directly into the amplifier’s remote port and mount the knob anywhere you prefer—dash, console, or under panel—without the need for tools or wiring expertise.
Reliable Support
Our dedicated support team is always available to answer setup and compatibility questions, ensuring a smooth user experience.