d&b audiotechnik 24C Column Loudspeaker

Installation-specific cardioid column loudspeaker


The d&b audiotechnik 24C Column Loudspeaker features six 4” neodymium drivers and an HF array comprising six 1.1” dome tweeters providing a nominal horizontal dispersion of 90°. The HF array has a nominal vertical dispersion of 20°, which can be adjusted constantly between 0° and -14° to target audience listening areas. The beam produced by the low/mid drivers is tilted downwards by 5°, offering significant directivity down to 370 Hz. The 4″ drivers are arranged in a unique cardioid setup radiating through waveguide elements at the front and damped ports at the rear of the cabinet. This design provides a constant directivity pattern of 90° in the horizontal plane with a broadband attenuation to the rear of approximately 18 dB. A cardioid dispersion pattern produces minimal energy behind the loudspeaker, reducing reflections and resulting in balanced level distribution across the listening area while increasing gain before feedback when working with open microphones. The 24C loudspeaker enclosure is constructed from an extruded aluminum back and a metal baffle, while the front and sides of the cabinet are protected by a metal grill. The rear of the cabinet features continuous T-slot rails for mounting purposes and a 4-pole Phoenix combicon terminal connector. The xC-Series loudspeakers are available in white or black as standard or can be provided with the Special Colour (SC) option that can be executed in all RAL colors.

The 24C can be combined with the 24C-E passive extension increasing vertical pattern control down to 190 Hz.

System data

Frequency response (–5 dB standard) 110 Hz – 17 kHz
Frequency response (–5 dB CUT mode) 150 Hz – 17 kHz
Max. sound pressure (1m, free field)1 126 dB SPL
Cabinets per amplifier channel 2
Loudspeaker data
Configuration Installation-specific cardioid column loudspeaker
Power handling capacity (RMS/peak 10 ms) 125/600 W
Nominal dispersion angle (h x v) 90° x 20°
Vertical downtilt of low-mid beam 5°
Vertical adjustment of HF section 0° ‒ -14°
Components 6 x 4″ driver with neodymium magnet
6 x 1.1″ dome tweeter mounted in vertical horn array
Passive crossover network
Connections 4-pole Phoenix terminal

Dimensions, weight

Dimensions (H x W x D) 1000 x 124.5 x 124 mm
39.4 x 4.9 x 4.88″
Weight 9 kg
19.8 lb

Additional information

Weight 20 lbs
Dimensions 5 × 5 × 40 in