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Authorized dealer · Car Audio Bargain
A remote bass knob puts subwoofer level within reach of the driver, so you can trim bass for a rough road, a sleeping passenger or a track that hits harder than expected. Car Audio Bargain, an authorized dealer, carries the Audio Apex CAB Remote Bass Knob Control, the Sundown Audio SALT Bass Knob and the Crossfire XPR Sub Level Remote Control.
The knob plugs into a remote level port on the amplifier through its own cable and scales the output of the sub channel. On most amplifiers it works as an attenuator: turning it down lowers output, and turning it all the way up returns the amp to the level set by its gain. It cannot create power beyond that setting, so set the gain correctly first with the knob at maximum, then use the knob to pull bass back when a song or road calls for it.
Remote ports are not universal across brands. Each knob here carries its maker's name, so start with the one that matches your amp: the SALT knob for a Sundown Audio amp, the CAB Remote for an Audio Apex model, or the XPR for a Crossfire amp. Confirm the connector type in your amplifier manual before ordering.
Popular locations include under the dash, inside the center console or on a kick panel. Route the cable away from the main power wire to limit noise pickup, and leave a little slack so trim panels can come off without tugging on the connection.
A remote is most useful with a monoblock subwoofer amp, though a 5-channel amp with a dedicated sub channel can benefit as well when it offers a remote port. If you are still building the system, browse the full range of car amplifiers and matching subwoofers. Treat the knob as a convenience control rather than a fix for poor setup: if the gain is set too high, rolling the bass knob back to full will still drive the amp into clipping. Keep a little headroom and the subs will stay clean at every setting.
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