Tannoy CMS401DCE 4" Low Impedence Ceiling Speaker

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(Inc VAT)
£149.00 £178.80
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Product Description

Product Ref:CMS401DCE

The award-winning CMS 401DCe Ceiling Monitor System is suited to BGM and speech reinforcement applications requiring exceptionally high sonic performance and reliability in applications where coverage and orientation need to be focused in a specific direction. Specifically designed for fast, simple and cost effective installation in new and existing buildings, the 100mm (4") point-source Dual Concentric driver can be entirely angled towards the listener within the fixed ceiling mounting ring. Ideal for a wide variety of environments including lecture theatres, convention centres, bars,restaurants, concourses, corporate AV, conference rooms, fitness centres, hotels, museums, retail spaces and transport hubs.

The drive unit is mounted in an injection-moulded swivelling pod. This, like the ceiling mounting ring in which the pod rotates, is manufactured from UV/weather resistant UL94V-0 ABS material. When mounting the speaker the three self-aligning clamps locate the speaker while at the same time locking the pod angle securely.

The challenge of difficult speaker placement in less than ideal room configurations, is therefore eliminated by being able to discreetly pivot the loudspeaker towards the desired area of coverage.

The inclusion of a premium quality Tannoy THP 30 multi-tap transformer, for distributed line operation, provides high system sensitivity, wide bandwidth and dynamic range; achieved with very low insertion loss. Each device is packaged with tile rails and C-ring for quick & easy installation and simple stocking logistics. A plaster (mud) ring is available as an optional accessory. Price is per single speaker

Tannoy CMS401DCE Key Features:

  • 100mm (4.00") Dual Concentric™ driver for greater durability and longevity
  • High power & high sensitivity with extended frequency response
  • Wide, controlled constant directivity dispertion for optimum coverage
  • Does not suffer from massive loss of energy in the vertical plane at crossover caused by two way discrete designs
  • UV/weather resistant UL94V-0 ABS construction for structural integrity
  • Low insertion loss 30 W line transformer
  • Packaged with tile rails and C-ring for quick & easy installation and simple stocking logistics
  • 3 clamp self-aligning mounting system
  • 5 Year Warranty
  • Price is per single speaker


  • Frequency Response (-3dB) (1) 110Hz - 50kHz
  • Frequency Range (-10dB) (1) 80Hz - 54kHz
  • System Sensitivity (1W @1m) (2) 88dB (1W = 2.83V for 8 Ohms)
  • Nominal Coverage Angle 90 degrees conical
  • Coverage Angle (1kHz to 6kHz) 123 degrees
  • Directivity Factor (Q) 4.6 averaged 1kHz to 6kHz
  • Directivity Index (DI) 6.0 averaged 1kHz to 6kHz
  • Rated Maximum SPL Average: 106dB, Peak: 112dB
  • Power Handling (3) Average: 60W, Programme: 120W, Peak: 240W
  • Recommended Amplifier Power 120W @ 8 Ohms
  • Nominal Impedance 8 Ohms
  • Dimensions Bezel diameter: 205mm (8.07"), Front of ceiling to rear of pod: 147.60mm (5.81")
  • Weight (each) 2.725kg


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