Architectural specifications

The 2-way dipolar, passive loudspeaker shall consist of two 12" low frequency drivers with a neodymium magnet assembly and one 1.4" exit neodymium compression driver mounted to a rotatable CD horn and a passive crossover network.
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 black paint finish.
Special colours according to RAL table and a weather resistant option shall be available upon request.
The drivers shall be protected by a rigid metal grill backed by an acoustically transparent foam.
The cabinet shall be Ball Impact Resistant according to DIN 18032-3 for schools and sports halls.
The cabinet shall incorporate two M10 threaded inserts on the top, bottom, side and rear panels for the secure attachment of dedicated mounting brackets.
The connection panel on the back shall be recessed and fitted with one speakon NL4 M socket and a two pole screw terminal block. A cover plate for protection of the connection panel shall be included.
The HF horn shall have a nominal dispersion of 110° x 45° (hor. x vert.).
The loudspeaker shall only be operated by a dedicated, compatible controller amplifier.
The power handling capacity shall be 500 W RMS and 2000 W peak (10 ms). The frequency response (–5 dB) measured on axis shall be 55 Hz to 18 kHz with a maximum sound pressure of at least 137 dB.
The dimensions (W x H x D) shall not exceed 410 x 800 x 420 mm (16" x 31.5" x 16.5") and shall weigh no more than 33 kg (73 lb).

The loudspeaker shall be the 24S-D by: d&b audiotechnik GmbH & Co. KG.