Bi8-SUB Architectural specifications The Bi8-SUB shall be an actively driven, compact, high performance subwoofer. The cabinet shall consist two 6.5" LF driver with ferrite magnets in a bass-reflex design. 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. Special colors according to RAL table and a weather resistant option shall be available upon request. The driver shall be protected by a rigid metal grill backed by an acoustically transparent foam. The bottom panel and one side panel shall be equipped with four circular recesses to accept optional rubber feet. These rubber feet shall be attached if desired and are intended to prevent cabinet movement and protect the respective panel against scratching. Two M8 threaded inserts shall be are incorporated, one on each side panel to allow the attachment of dedicated flying or horizontal brackets. The threads shall be covered by dummy caps in cabinet color. The connection panel on the back shall be recessed and fitted with two speakon NL4 M sockets and a two pole screw terminal block. A cover plate for protection of the connection panel shall be included. The power handling capacity shall be 200 W RMS and 800 W peak (10 ms). The frequency response (–5 dB) measured on axis shall be 43 Hz to 170 Hz with a maximum sound pressure of at least 122 dB. In addition a 100 Hz mode setup shall be provided with the upper operating frequency reduced down to 125 Hz to supplement applicable full-range systems. The dimensions (W x H x D) shall not exceed 440 x 170 x 580 mm (17.3" x 6.7" x 22.8") and shall weigh no more than 17 kg (37.5 lb). The loudspeaker shall be the Bi8-SUB by: d&b audiotechnik GmbH & Co. KG.