|TYPE||Compact, high-output, Coaxial Differential Dispersion passive two-way system|
|FREQUENCY RESPONSE (5)||62Hz-20kHz ± 3dB, -10dB @ 50Hz|
|DRIVER||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|
|MAXIMUM SPL (9)||122dB continuous, 128dB peak|
|DISPERSION (-6dB)||110˚-60˚ horizontal, 60˚ vertical (user-rotatable)|
|ENCLOSURE||38 litre, composite material|
|FINISH||Black or white textured paint|
|PROTECTIVE GRILLE||Black or white perforated steel with scrim cloth backing|
|CONNECTORS||Low profile 20A push-lock|
|PIN CONNECTIONS||Left to right: Input+, Input -, Link -, Link+|
|FITTINGS||6 x M8 inserts for wall bracket
10 x M8 fly points
|DIMENSIONS||(W) 360mm x (H) 571mm x (D) 350mm
(W) 14.2ins x (H) 22.5ins x (D) 13.8ins
The CDD12 is a compact, passive two-way system designed for installations that require high output levels. Its high-specification 12” (300mm) LF /1” exit HF Coaxial Differential Dispersion driver delivers perfect sound across the audience over medium-throw distances.
- Compact, CDD™ passive two-way system
- Coaxial Differential Dispersion™ technology
- Elegant UPM Formi composite enclosure
- User-rotatable coaxial drive unit
- Vertical and horizontal mounting options
- Screw-free perforated steel grille
- 8Ω nominal impedance
- Discreet mounting accessories
- Integral inserts for eyebolt suspension
- Black or white standard colour options
- Live Music Clubs and Bars
- Bars and Restaurants
- Museums and AV Spaces
- Convention Centres
- Retail Outlets
- Leisure Centres
- Houses of Worship
The Coaxial Differential Dispersion technology employed in the CDD12 delivers more consistent audience coverage than systems with fixed X° x Y° coverage patterns — projecting relatively more output to the rear of the audience, while having wide horizontal coverage close-up. Its innovative CDD driver achieves ‘point source’ summation of the LF and HF sections — eliminating off-axis variations in frequency response associated with non-coaxial designs. Improving on conventional coaxial designs, which can suffer from high-frequency beaming, the driver features a static waveguide that merges seamlessly with the unique cone shape — maintaining the dispersion pattern out to very high frequencies.
The LF driver has a 2.5” (65mm) voice coil and efficient motor with an aluminium demodulating ring to minimise distortion, while the HF driver utilises a 1.75” (44mm) polyimide diaphragm and features a low-compression phase-plug to reduce non-linearity.
The visually-distinctive composite enclosure can be used in either horizontal (landscape) or vertical (portrait) orientation, with rotation of the driver easily accomplished by removing the screw-free, protective grille. The curved shape of the CDD12 allows it to be surface-mounted close to a wall via an optional wall bracket or suspended from a ceiling by eyebolts or a horizontal yoke option.
Finished in black (RAL9005) or white (RAL9016) as standard, the CDD12 can be supplied in any RAL colour to order.
A full-range, passive two-way system, the CDD12 should be used with a compatible controller with appropriate limiter settings to provide system protection. The EQ and limiter functions of a controller such as the Martin Audio DX0.5, DX1.5 or DX2, or a Martin Audio amplifier with onboard DSP will maximise its capabilities
Martin Audio CDD12
The loudspeaker shall be a passive, two-way system ultilising Coaxial Differential Dispersion technology. Its transducers shall consist of a reflex-loaded 12” low frequency driver and a coaxially-mounted 1” exit high frequency compression driver loaded by a static waveguide that merges with moving waveguides added to the cone of the low frequency driver to define the HF horn geometry.
The coaxial driver shall be user-rotatable to enable vertical or horizontal operation as required by the application. Horizontal dispersion shall vary from 110° to 60° and vertical dispersion shall be 60°. The on-axis frequency response shall be 62Hz-20kHz +/- 3dB and the loudspeaker shall produce a maximum SPL of 128dB peak calculated at 1 metre. Power handling shall be 300W AES, 1200W peak. Rated impedance shall be 8 ohms.
The input connector shall be a low-profile 20A push-lock type. Low and high frequency sections shall be integrated by an internal 1.9kHz passive network. For optimal performance the loudspeaker shall be operated in conjunction with a dedicated electronic controller.
The enclosure shall be made from rigid composite material and fitted with threaded inserts for wall and ceiling mounting. The drivers shall be protected by a perforated steel grille with scrim cloth backing.
Dimensions (W x H x D) shall be 360mm x 571mm x 350mm (14.2in x 22.5in x 13.8in). Weight shall be 19.3kg (42.5lbs).
The loudspeaker shall be the Martin Audio CDD12.