ALPINE RUX-KNOB.2 Take command of your vehicle’s bass performance with the Alpine RUX-KNOB.2, a compact and intuitive remote bass level control designed for select Alpine amplifiers. Instead of reaching for your amplifier’s gain settings, this discreet knob allows you to adjust your subwoofer output instantly from the comfort of your seat. Key Features: Real-Time Bass AdjustmentsSmoothly increase or decrease bass levels without affecting EQ or sound quality—perfect for switching between music styles or adjusting to passenger preferences. Generous ConnectivityComes with a 16.4-foot cable, giving you plenty of length for flexible mounting locations on or under your dash. Wide Amplifier CompatibilityWorks with a range of Alpine amplifiers, including: X Series: X-A70F (bridged channels 3/4), X-A90V, X-A90M PDX Series: PDX-M12, PDX-M6, PDX-V9 MRX Series: MRX-M55, MRX-M110, MRX-M240, MRX-M50, MRX-M100, MRX-M200, MRX-V60, MRX-V70 Power Pack: KTA-200M S Series: S2-A55V Multi-Amp ControlManage multiple amplifiers with one knob by using a simple splitter (sold separately). Easy InstallationIncludes two dash-mount flanges, four mounting screws, and a simple plug-and-play design that makes setup quick and hassle-free. Peace of MindBuilt with Alpine’s trusted reliability and backed by a 1-year manufacturer warranty. What’s in the Box: Alpine RUX-KNOB.2 remote bass level control module 16.4-foot connecting cable with RJ-14 plugs Four self-tapping mounting screws Whether you’re looking to crank up the bass for your favorite tracks or tone it down for a smoother ride, the Alpine RUX-KNOB.2 makes it effortless to fine-tune your sound on the go.