Tannoy CMS 403DCE 4" Full Range Directional Ceiling Loudspeaker with Dual Concentric Driver (Blind-Mount,Pair) - TA-CMS403DCE

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Sale price$518.00


(Sold as a pair)

The CMS 403DCE is a full bandwidth 160-Watt high sensitivity loudspeaker that utilises our third generation Ceiling Monitor System technology (CMS 3.0). Thanks to an all-new proprietary 4" Dual Concentric point-source driver with Omnimagnet technology on a Torus Ogive Waveguide, the CMS 403DCE delivers wide and consistent broadband directivity with enhanced intelligibility – plus highly accurate and linear response.


  • Full range ceiling loudspeaker for installation applications

  • 40 Watts continuous, 160 Watts peak power

  • Next generation 4" Dual Concentric point source driver featuring Omnimagnet technology

  • Torus Ogive waveguide for improved high frequency response and directivity

  • Blind Mount enclosure supplied with integral moulded ABS back can

  • Integrated single unit construction for ease of installation

  • Adjustable tilt angle with 360° rotation to accommodate difficult loudspeaker placements

  • Multiple transformer taps for 70 V and 100 V line systems or 16 Ohm direct input

  • Low insertion loss 30 W line transformer with easily accessible tapping switch

  • Optimised for Lab Gruppen low impedance LUCIA amplifiers with up to 8 CMS series loudspeakers per channel

  • Semi matt white finish fits unobtrusively in any environment

  • Powder coated UV resistant perforated steel mesh grille with dust protection

  • Removable grille for custom painting

  • Self-aligning 3 way clamp mounting system

  • Mounting C-ring and ceiling tile rails included

  • 10-Year Warranty Program*

  • Designed and engineered in the U.K.

Data Sheet


Frequency response (-3 dB) <sup>(1)</sup>

110 Hz - 50 kHz BM Backcan

Frequency range (-10 dB) <sup>(1)</sup>

80 Hz - 54 kHz BM Backcan

System sensitivity (1 W @ 1 m) <sup>(2)</sup>

88 dB (1 W = 4 V for 16 Ohms)

Nominal coverage angle 90 degrees conical
Coverage angle (1 kHz to 6 kHz)

Directivity factor (Q)

Directivity index (DI)

Power handling <sup>(3)</sup>
Rated maximum SPL
Transformer taps (via front rotary switch)
Dual concentric point source driver

1 x 100 mm (4.0") Dual Concentric driver, using Omnimagnet technology

Low frequency

35 mm (1.38") voice coil, treated multi fiber paper pulp cone

High frequency

20 mm (0.79") PEI dome

Safety features

Safety ring located at rear of enclosure for load bearing safety bond

Clamping design

Min / Max clamping range:
0.0 mm (0.0") /20.0 mm (0.79")
Recommended clamp torque: 1.5 Nm

Included accessories

C-Ring, tile-bridge kit, paint mask, cut-out template, grille

Optional accessories

Plaster (mud) ring

Packed quantity


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