Name: CDD15
Rating: 4.7 (23 reviews)

Ideal for medium-to-large rooms, the CDD15 is a very high-power, passive two-way system designed for installations that demand the ultimate in sonic performance from a single enclosure. It combines very high output capability with exceptional fidelity and coverage consistency. Its coaxial drive unit comprises a powerful 15” (380mm)/3” (75mm) voice coil LF driver and a 1.4” (35mm) exit HF compression driver with a 3” (75mm) pure titanium diaphragm.

Features

High-output, CDD™ passive two-way system
Coaxial Differential Dispersion™ technology
Elegant birch plywood enclosure
User-rotatable coaxial drive unit
Vertical and horizontal mounting options
Screw-free perforated steel grille
8Ω nominal impedance
Integral inserts for eyebolt suspension
Black or white standard colour options

Applications

Live Music Clubs and Bars
Nightclubs
Bars and Restaurants
Museums and AV Spaces
Convention Centres
Hotels
Retail Outlets
Leisure Centres
Houses of Worship

The Coaxial Differential Dispersion technology employed in the CDD15 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 visually-distinctive birch plywood 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 CDD15 can be suspended by eyebolts or by means of an optional horizontal yoke.

Finished in black (RAL9005) or white (RAL9016) as standard, the CDD15 can be supplied in any RAL colour to order.

A full-range, passive two-way system, the CDD15 should be used with a compatible controller with appropriate limiter settings to provide system protection.

When used with the DX4.0 controller or an iKON amplifier, there are now enhanced DSP and FIR based pre-sets to deliver the absolute maximum performance and fidelity while limiter settings protect the integrity of the system.

Links

User guide Brochure Datasheet Settings [v1.9] Measurement Data

Specification

TYPE	High-output, Coaxial Differential Dispersion passive two-way system
FREQUENCY RESPONSE (5)	55Hz-18kHz ± 3dB, -10dB @ 45Hz
DRIVER	LF: 15” (380mm)/3” (75mm) voice coil, long excursion, shared ferrite motor system with HF HF: 1.4” (36mm) exit/3” (75mm) voice coil, titanium dome compression driver
RATED POWER (2)	400W AES, 1600W peak
SENSITIVITY (8)	100dB
MAXIMUM SPL (9)	126dB continuous, 132dB peak
NOMINAL IMPEDANCE	8Ω
DISPERSION (-6dB)	100˚-60˚ horizontal, 60˚ vertical (user-rotatable)
CROSSOVER	1.6kHz passive
ENCLOSURE	68 litre, birch plywood
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	10 x M8 fly points
DIMENSIONS	(W) 432mm x (H) 685mm x (D) 413mm (W) 17.01ins x (H) 26.97ins x (D) 16.26ins
WEIGHT	26kg (57.32lbs)

Architectural Specs

Martin Audio CDD15

The loudspeaker shall be a passive, two-way system ultilising Coaxial Differential Dispersion technology. Its transducers shall consist of a reflex-loaded 15” low frequency driver and a coaxially-mounted 1.4” 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 100° to 60° and vertical dispersion shall be 60°. The on-axis frequency response shall be 55Hz-18kHz +/- 3dB and the loudspeaker shall produce a maximum SPL of 132dB peak calculated at 1 metre. Power handling shall be 400W AES, 1600W 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 1.6kHz passive network. For optimal performance the loudspeaker shall be operated in conjunction with a dedicated electronic controller.

The enclosure shall be made from birch plywood 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 432mm x 685mm x 413mm (17.01ins x 26.97ins x 16.26ins). Weight shall be 226kg (57.32lbs).

The loudspeaker shall be the Martin Audio CDD15.

Technical Drawings & 3D Models