Seller notes

Alpine RUX-KNOB.2 Remote Bass Knob Alpine RUX-KNOB.2 Remote Bass Knob The optional RUX-KNOB.2 remote bass control knob plugs right in to the X-A90M, X-A90V, MRX-M50, MRX-M100, MRX-V60, PDX-M12, PDX-M6, and PDX-V9 mono models for quick direct subwoofer control to make bass adjustments on the fly. It also allows control of channels 3 and 4 in bridged mode for a 3 channel system. 3 Channel bridged mode is only compatible with Alpine's X Series 4 Channel amplifier the X-A70F. Overview Compatible Mod...

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