
RTB65A
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The Rockville RTB65A is a powered bass tube for car audio: a cylindrical subwoofer enclosure with a built-in amplifier, so it needs power and a signal rather than a separate amp. Bass tubes are valued for punchy, deep low end in a compact footprint that fits trunks and hatchbacks more easily than a big box. It suits drivers who want to add bass to a factory or basic aftermarket system without building a custom enclosure. Against box subwoofers it trades some output and tuning flexibility for simpler install and smaller space.
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The Rockville RTB65A is a powered subwoofer tube for car audio. It combines a 6.5-inch high-power woofer, a built-in amplifier and a vented tubular enclosure in one unit. The amp, subwoofer and enclosure are matched to work together.
The cylindrical enclosure focuses bass pressure from the woofer face and the tuned rear aero port. A molded steel grill protects the woofer, and the tube is covered in aviation grade tweed with an embroidered logo.
No custom enclosure building or amp wiring is needed. Connect power, ground and remote, then send a signal to the tube. It comes with four steel mounting brackets and two canvas straps with Velcro fasteners to hold it in place without permanent installation.