[Versatile RCA Audio Control] This RCA audio amplifier level controller connects seamlessly to your car audio system, allowing you to easily adjust the gain levels and volume of your speakers, amplifiers, and subwoofers. It's the perfect solution for customizing your audio experience [Easy Volume Adjustment] Designed for dashboard use, this controller enables you to fine-tune the volume of your amplifier, power levels, stereo balance, equalizer, or crossover settings, ensuring optimal sound quality tailored to your preferences [Enhanced Bass Control] Add a dedicated subwoofer volume control to your setup or balance multiple amplifiers with this controller. It helps you achieve the perfect volume balance throughout your audio system, enhancing your listening experience [Simple Setup with RCA Connections] Featuring stereo RCA input and output, this amplifier level controller requires no additional wiring for installation. Its universal RCA connection makes it compatible with a variety of vehicles and applications, including home subwoofers and motorcycle speakers [High-Quality Signal Transmission] Using RCA composite cables, this amplifier controller delivers high-quality signal transmission for crystal-clear audio. Trust our level controller to provide you with the best sound quality and performance for your audio system Specifications: Operating temperature: -20℃~50℃ Product size: 5.4*3.1*2.4cm Lead length: 22.5cm Weight: 0.064kg Interface: 2*RCA output; 2*RCA input