Architectural specifications

The 2-way, passive loudspeaker shall consist of a 4" low frequency driver with a neodymium magnet assembly and a coaxially mounted 0.75" dome tweeter.
The sealed enclosure shall be injection molded with an impact resistant black or white paint finish.
Special colours according to RAL table shall be available upon request. The cabinet shall be rated IP34 as a minimum. The drivers shall be protected by a powder coated metal grill with an acoustically transparent foam.
The cabinet shall incorporate two M8 threaded inserts on the rear panel for the secure attachment of wall mounts. The connection panel on the back shall be recessed and fitted with two NL4 sockets and a two pole screw terminal block.
A cover plate for protection of the connection panel shall be included.
The loudspeaker shall have a nominal conical dispersion angle of 100°.
The loudspeaker shall only be operated by a dedicated, compatible controller amplifier.
The power handling capacity shall be 60 W RMS and 400 W peak (10 ms). The frequency response (–5 dB) measured on axis shall be 130 Hz to 20 kHz with a maximum sound pressure of at least 114 dB or 115 dB respectively when operated with one of its dedicated controller amplifiers.
The dimensions (W x H x D) shall not exceed 120 x 150 x 102 mm (4.72" x 5.91" x 4") and shall weigh no more than 1 kg (2.2 lb).

The loudspeaker shall be the 4S by: d&b audiotechnik GmbH & Co. KG.