Bandpass Enclosures

Alumapro BP-Series Bandpass Enclosures

Maximum acoustic output in minimum space — hand-built in Huntley, Illinois. Alumapro's BP-Series bandpass enclosures use a precision-tuned dual chamber design that's more efficient than conventional sealed or vented enclosures. They're louder with less amplifier power, with frequency response tailored specifically for the car environment — extending bass below 30Hz.

Each BP enclosure comes loaded with an Alumapro aluminum alloy cone woofer, wrapped in premium black carpet with carbon-pattern plexi viewing windows, heavy-duty bolted construction, and large flared aero-ports for zero compression at high output. Available in 8", 10", and 12" — from compact daily drivers to competition-level thunder.

Engineered and assembled in the USA by Alumapro. Free shipping on orders over $499.