Bi12-SUB Architectural specifications

The loudspeaker shall be a compact high performance, passive cardioid subwoofer.
It shall consist of two long excursion neodymium drivers in an integrated cardioid setup: a 15" driver in a bass-reflex design shall facing to the front and a 10" driver in a 2-chamber bandpass design shall radiating to the rear. The arrangement and tuning shall provide a cardioid dispersion pattern using a single amplifier channel.
The loudspeaker shall only be operated by a dedicated, compatible controller amplifier.
The cabinet enclosure shall be made from marine plywood with an impact resistant paint finish.
The driver shall be protected by a rigid metal grill backed by an acoustically transparent and water repellent fabric.
Four rubber feet shall be incorporated in the bottom panel to prevent the cabinet from movement and scratching and four corresponding recesses in the top panel shall be incorporated to prevent movement of stacked cabinets.
The connection panel on the back shall be recessed and fitted with a 4-pin Phoenix connector.
A cover plate which accepts a single PG cable gland (Type PG13.5 for cable diameters from 6 - 12 mm) shall be available upon request.
The power handling capacity shall be 500 W RMS and 1200 W peak (10 ms). The frequency response (–5 dB) measured on axis shall be 39 Hz to 150 Hz with a maximum sound pressure of at least 132 dB.
The dimensions (W x H x D) shall not exceed 590 x 457 x 688 mm (23.23" x 18" x 27.1") and shall weigh no more than 41.5 kg (90.5 lb).

The loudspeaker shall be the Bi12-SUB by: d&b audiotechnik GmbH & Co. KG.