Tannoy CMS401E 4" Low Impedence Ceiling Speaker - White

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(Inc VAT)
£119.00 £142.80
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Product Description

Product Ref:CMS401E

The CMS 401e Ceiling Monitor System from Tannoy is suited to BGM and speech reinforcement applications requiring great sonic performance and uncompromised reliability in applications where coverage and orientation need to be focused in a specific direction. 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.
Specifically designed for fast, simple and cost effective installation in new and existing buildings, the 100mm (4") point-source ICT driver can be entirely angled towards the listener within the fixed ceiling mounting ring.

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 CMS401E Key Features:

  • 100mm (4.00") ICT™ Transducer 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 30W 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 - 22kHz
  • Frequency Range (-10dB) (1) 80Hz - 24kHz
  • System Sensitivity (1W @1m) (2) 88dB (1W = 2.45V for 6 Ohms)
  • Nominal Coverage Angle 90 degrees conical
  • Coverage Angle (1kHz to 6kHz) 120 degrees
  • Directivity Factor (Q) 5.26 averaged 1kHz to 6kHz
  • Directivity Index (DI) 6.3 averaged 1kHz to 6kHz
  • Rated Maximum SPL Average: 105dB, Peak: 111dB
  • Power Handling (3) Average: 50W, Programme: 100W, Peak: 200W
  • Recommended Amplifier Power 100W @ 6 Ohms
  • Nominal Impedance 6 Ohms
  • Transformer Taps (via front rotary switch) 70V: 30W / 15W / 7.5W / 3.75W / OFF
    & Low Impedance operation, 100V: 30W / 15W / 7.5W / OFF & Low Impedance operation
  • Low Frequency 100mm (4.00") mineral loaded polypropylene
  • High Frequency 19mm (0.75") ICT™ aluminium dome.
  • Dimensions Bezel diameter: 205mm (8.07"), Front of ceiling to rear of pod: 147.60mm (5.81")
  • Weight (ea) 3.05kg


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