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.
The weatherised design is intended for outdoor locations sheltered from direct exposure to the elements. It is tested to IP54 and for operation from −20°C to +70°C. The protective grille uses zinc-plated mild steel with a powder-coated finish to resist water and particles. Weatherised accessories and stainless-steel cabinet fixings support installation.
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-WR
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 system 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, weatherproof input panel cover with cable gland |
| PIN CONNECTIONS | Left to right: Input+, Input -, Link -, Link+ |
ENCLOSURE, MOUNTING AND ENVIRONMENT |
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| ENCLOSURE | 38 litre, composite material |
| FINISH | Black or white as standard |
| PROTECTIVE GRILLE | Zinc plated mild steel with powder coated finish and weatherised backing |
| FITTINGS | 6 x M8 inserts for wall bracket 10 x M8 fly points |
| ENVIRONMENTAL | Rated at IP54 |
| ACCESSORIES / MOUNTING | Model-specific wall/ceiling bracket or mounting accessories; retain seals and cable glands to maintain IP54 |
DIMENSIONS AND WEIGHT |
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| DIMENSIONS | (W) 360mm x (H) 571mm x (D) 350mm (W) 14.2ins x (H) 22.5ins x (D) 13.8ins |
| WEIGHT | 19.8kg (43.65lbs) |
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