A static HF waveguide merges with the shaped LF cone to maintain the intended pattern into the upper frequency range. This also addresses the high-frequency beaming that can occur in conventional coaxial arrangements.
The driver rotates for portrait or landscape operation after removing the screw-free grille. The cabinet accepts an optional wall bracket, eyebolt suspension or a horizontal yoke. Standard finishes are black RAL9005 or white RAL9016, with other RAL colours offered to order.
A compatible system controller supplies the correct equalisation and limiter settings for protection. DX4.0 or iKON provides enhanced DSP and FIR-based presets for the system; the passive loudspeaker requires suitable external amplification.
Explore the Martin Audio CDD and CDD-WR loudspeakers at B-Star for the available system options.
Technical Specifications CDD12
ACOUSTICS |
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| TYPE | Compact, high-output passive two-way Coaxial Differential Dispersion system |
| FREQUENCY RESPONSE (5) | 62Hz-20kHz ± 3dB, -10dB @ 50Hz |
| DRIVERS | LF: 12” (300mm)/2.5” (63.5mm) voice coil, long excursion, shared ferrite motor with HF HF: 1” (25mm) exit/1.7” (44mm) voice coil, polyimide dome compression driver |
| RATED POWER (2) | 300W AES, 1200W peak |
| SENSITIVITY (8) | 97dB |
| MAXIMUM SPL (9) | 122dB continuous, 128dB peak |
| NOMINAL IMPEDANCE | 8Ω |
| DISPERSION AT −6 dB | 110˚–60˚ horizontal, 60˚ vertical (user-rotatable) |
| CROSSOVER | 1.9kHz passive |
CONNECTIONS |
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| CONNECTORS | Low profile 20A push-lock |
| PIN CONNECTIONS | Left to right: Input+, Input -, Link -, Link+ |
ENCLOSURE AND MOUNTING |
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| ENCLOSURE | 38 litre, birch plywood |
| FINISH | Black or white textured paint |
| PROTECTIVE GRILLE | Black or white perforated steel with scrim cloth backing |
| FITTINGS | 6 x M8 inserts for wall bracket 10 x M8 fly points |
DIMENSIONS AND WEIGHT |
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| DIMENSIONS | (W) 360mm x (H) 560mm x (D) 350mm (W) 14.17ins x (H) 22.05ins x (D) 13.78ins |
| WEIGHT | 19kg (41.89 lbs) |
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