Martin Audio CDD10WTX – 10" 70V/100V Transformer Speaker (White)

Product Overview

The Martin Audio CDD10WTX is a commercial-grade, transformer-coupled 70V/100V distributed loudspeaker designed for multi-zone constant-voltage audio installations in architecturally sensitive commercial environments. Finished in white to complement light-colored interiors, the CDD10WTX shares the same 10" Coaxial Differential Dispersion (CDD) driver platform as the CDD10BTX, delivering 96dB sensitivity and a maximum of 120dB continuous SPL. The integrated 70V/100V line transformer enables direct connection to constant-voltage amplifier circuits, allowing multiple speakers to be daisy-chained across a single amplifier channel for efficient, scalable distributed audio system design. AV integrators specifying 100V line speaker systems for hospitality, worship, or institutional spaces benefit from the CDD10WTX's wide, consistent coverage and dual-mode 8Ω / constant-voltage compatibility.

Product Description

The CDD10WTX delivers Martin Audio's Coaxial Differential Dispersion technology in a white-finish enclosure purpose-built for 70V/100V distributed audio deployment. The coaxial arrangement of the 1" exit HF compression driver within the 10" LF cone produces a point-source dispersion characteristic that maintains time-coherent, tonally consistent coverage from the front row to the rear of large commercial zones, reducing the intelligibility degradation common in reverberant architectural spaces.

The user-rotatable coaxial drive unit allows the integrator to align the 110° to 75° horizontal, 60° vertical dispersion pattern with the room geometry regardless of whether the cabinet is mounted in portrait or landscape orientation. This reduces the number of speaker positions required to achieve uniform SPL coverage, directly lowering installation cost and cabling runs in large-zone commercial audio systems.

Onboard transformer taps at 120W, 60W, 30W, and 15W via Phoenix connector give the designer precise control over per-speaker power allocation on the 70V or 100V constant-voltage line. The retained 8Ω nominal impedance means the same speaker can be deployed in low-impedance zones where a constant-voltage circuit is not present, providing configuration flexibility across mixed-topology distributed audio systems.

The UPM Formi composite enclosure is dimensionally stable under the humidity and temperature variations typical of permanent commercial installations, and the screw-free perforated steel grille in white finish blends with ceiling and wall surfaces in hotels, boardrooms, and houses of worship. Six M8 inserts support wall bracket mounting and ten M8 fly points accommodate suspended rigging. Explore compatible Martin Audio system components at the Martin Audio collection on Creation Networks.

Key Features

• White Finish for Architectural Integration — White textured enclosure and grille suited to light-colored commercial interiors including hotel ballrooms, worship spaces, and conference rooms.
• Coaxial Differential Dispersion (CDD) Technology — Point-source coaxial driver maintains time-aligned, consistent frequency response across the entire coverage zone.
• Integrated 70V/100V Line Transformer — Onboard constant-voltage transformer supports direct daisy-chain connection to 70V or 100V distributed audio amplifiers.
• Selectable Transformer Taps (120W / 60W / 30W / 15W) — Phoenix connector tapping enables precise per-speaker power draw for accurate constant-voltage system load calculations.
• User-Rotatable Coaxial Drive Unit — Field-adjustable dispersion axis supports portrait and landscape mounting without altering HF coverage geometry.
• 96dB Sensitivity / 120dB Continuous SPL — High-efficiency output suitable for large-zone foreground audio and speech reinforcement at commercial amplifier power levels.
• Dual 8Ω / Constant-Voltage Operation — Compatible with both 70V/100V distributed amplifiers and conventional low-impedance outputs for mixed-topology systems.
• UPM Formi Composite Enclosure — Humidity-stable composite construction for reliable long-term performance in permanent commercial installations.
• Multiple Rigging Options — Six M8 wall bracket inserts and ten M8 fly points accommodate wall, ceiling tile, and suspension mounting.
• Wide Frequency Response — 65Hz–20kHz (±3dB) with 2kHz passive crossover for full-range zone audio reproduction.

Typical Applications

• House of worship main and fill zone coverage
• Hotel lobby, ballroom, and multi-zone hospitality audio
• Convention center and exhibition hall distributed audio
• Multi-purpose room and auditorium zone reinforcement
• Commercial meeting space and all-hands room audio
• Conference room and boardroom speech reinforcement
• Government and institutional facility audio systems
• Museum and cultural AV space foreground audio

Technical Specifications

Frequently Asked Questions

How does 70V/100V transformer tapping work on the CDD10WTX?

The CDD10WTX's internal transformer provides selectable taps at 120W, 60W, 30W, and 15W via a Phoenix connector. Select the tap that matches your per-speaker power budget, then sum all tapped loads across the daisy-chain circuit to verify the total does not exceed the 70V or 100V amplifier's rated output. Lower tap settings reduce per-speaker SPL output while allowing more units per amplifier channel.

Can the CDD10WTX operate on a standard 8Ω amplifier output?

Yes. The speaker retains its 8Ω nominal impedance and can be driven directly from a conventional low-impedance amplifier. This dual-mode capability allows the CDD10WTX to be used interchangeably in both constant-voltage distributed audio systems and traditional low-impedance zone configurations.

What amplifiers are recommended for use with this speaker?

Any professional 70V or 100V constant-voltage amplifier is compatible, provided the cumulative tapped load does not exceed the amplifier's output rating. The speaker should be used with a controller incorporating appropriate limiting to protect the driver under sustained high-power conditions. For 8Ω operation, any professional amplifier rated to the speaker's 250W AES power handling is suitable.

Can CDD10WTX speakers be mixed with the black CDD10BTX on the same circuit?

Yes. The CDD10WTX and CDD10BTX are acoustically and electrically identical — the only difference is cabinet finish. Both can be used on the same constant-voltage circuit with the same tap settings. Total circuit load calculations remain the same regardless of color variant.

What makes CDD technology advantageous for commercial audio?

Coaxial Differential Dispersion co-locates the HF compression driver within the LF cone, creating a true point-source acoustic center. This eliminates the vertical lobing and off-axis tonal shift associated with separated driver designs, producing more consistent speech intelligibility and music reproduction across the full coverage zone — particularly important in large, reverberant commercial spaces.

What mounting hardware is compatible with the CDD10WTX?

The enclosure includes six M8 inserts for Martin Audio-compatible wall brackets and ten M8 fly points for eyebolt suspension. Discreet mounting accessories are available through the Martin Audio accessory range. Contact Creation Networks for bracket compatibility and availability.

Is the CDD10WTX suitable for outdoor applications?

No. The CDD10WTX is designed for permanent indoor commercial installation. The composite enclosure provides humidity resistance beyond standard MDF, but the speaker is not weatherized for exposed outdoor use. For outdoor zone audio requirements, review dedicated weatherized models in the Martin Audio range at Creation Networks.

What warranty applies to the CDD10WTX?

Martin Audio products carry a manufacturer warranty covering defects in materials and workmanship. Contact Creation Networks for warranty registration and authorized service support.