24C/24C-E Architectural specifications

The 2-way passive column loudspeaker shall consist of a base unit with six 4” neodymium drivers and an HF array comprising six 1.1” dome tweeters and an extension unit with additional six 4” neodymium drivers.
The 4” drivers shall be arranged in a unique cardioid setup radiating through waveguide elements at the front and damped ports at the rear of the cabinet and shall provide a constant directivity pattern of 90° in the horizontal plane with a broadband attenuation to the rear of the column of, on average, approx. 18 dB.
In the horizontal plane, the loudspeaker shall offer a nominal dispersion of 90°.
In the vertical plane, the beam produced by the low-mid drivers shall be tilted downwards by –5° and shall provide dispersion pattern control down to 190 Hz.
The HF array shall have a nominal vertical dispersion of 20° and its main axis shall be adjustable continuously between 0° and –14°.
The loudspeaker cabinet shall be based on an extruded aluminum profile with a metal grill protecting the front of the loudspeaker.
Two continuous rails (8 mm T-slot profiles) shall be provided at the rear for attaching a wall mount bracket.
The connection panel on the back of the basic column loudspeaker shall be recessed and fitted with a 4-pin Phoenix Euroblock terminal and shall allow a cross-section of up to 2.5 qmm / AWG 13.
In addition a NL4 M connetor socket shall be provided with the basic column louspeaker.
The loudspeaker shall only be operated by a dedicated, compatible controller amplifier.
The power handling capacity shall be 250 W RMS and 1200 W peak (10 ms).
The frequency response (–5) measured on axis shall be 110 Hz to 17 kHz with a maximum sound pressure of at least 128 dB.
The dimensions (W x H x D) shall not exceed 125 x 1695 x 124 mm (4.9" x 66.7" x 4.9") and shall weigh no more than 16 kg (35 lb).

The loudspeaker shall be the 24C/24C-E by: d&b audiotechnik GmbH & Co. KG.