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Tannoy - CMS 803DC PI - 8" Dual-Concentric Ceiling Speakers (Pair) is available to buy in increments of 1

Tannoy - CMS 803DC PI - 8" Dual-Concentric Ceiling Speakers (Pair)

Tannoy - CMS 803DC PI - 8

Tannoy - CMS 803DC PI - 8" Dual-Concentric Ceiling Speakers (Pair)

8" Full Range Ceiling Loudspeaker with Dual Concentric Driver for Installation Applications (Pre-Install)

CMS 3.0 CMS 803DC PI
The CMS 803DC PI is a full bandwidth 360-Watt high sensitivity loudspeaker that utilizes Tannoy's third generation Ceiling Monitor System technology (CMS 3.0). Thanks to an all-new proprietary 8" Dual Concentric pointsource driver with Omnimagnet technology on a Torus Ogive Waveguide, the UL certified CMS 803DC PI delivers wide and consistent broadband directivity with enhanced intelligibility – plus highly accurate and linear response.

Optimized for Installation
Specifically designed with a self-aligning 5-way clamp system for fast, simple and cost-effective installation, CMS 803DC PI also features an extra clamp extension to accommodate thicker ceiling panels, and a locking design that prevents over-tightening. A low-insertion loss 60 W transformer with convenient front panel tap switching, paintable powder coated steel mesh grille with dust protection, two tile support rails, and one C-ring are all included. An Arco style grille, which conceals the entire unit for aesthetic purposes, back can, and plaster (mud) ring are available separately.

The CMS 803DC PI is finished in semi-matt white and optimized for use with LAB GRUPPEN LUCIA amplifiers, which accommodate up to 8 CMS Series loudspeakers per channel.


  • Full range ceiling loudspeaker for installation applications
  • 90 Watts continuous, 360 Watts peak power
  • Next generation 8" Dual Concentric driver featuring Omnimagnet technology
  • Torus Ogive waveguide for improved high frequency response and directivity
  • Pre-install version supplied without back can (available separately)
  • UL 1480 certified for general signalling systems
  • UL 2043 certified for air-handling spaces
  • Multiple transformer taps for 70 V and 100 V line systems or 16 Ohm direct input
  • Low insertion loss 60 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 magnetic grille for custom painting
  • Optional ARCO designer grilles available for minimal architectural impact
  • Self-aligning 5 way clamp mounting system
  • Mounting C-ring and ceiling tile rails included
  • Designed and engineered in England


Frequency response (-3 dB)
47 Hz - 30 kHz BM Backcan

Frequency range (-10 dB)
40 Hz - 35 kHz BM Backcan

Frequency range (-10 dB)
41 Hz - 35 kHz PI Backcan

System sensitivity (1 W @ 1 m)
92 dB (1 W = 4 V for 16 Ohms)

Nominal coverage angle
90 degrees conical

Power handling
90 W

180 W

360 W

Recommended amplifier power
180 W @ 16 Ohms

Nominal impedance (Lo, Z)
16 Ohms

Rated maximum SPL
112 dB

118 dB

With THP60
average 110 dB

Transformer taps (via front rotary switch)
70 V
60 W (83 Ω) / 30 W (165 Ω) /
15 W (330 Ω) / 7.5 W (660 Ω) /
OFF & low impedance operation

100 V
60 W (165 Ω) / 30 W (330 Ω) /
15 W (660 Ω) / OFF & low impedance operation

Dual concentric point source driver
1 x 200 mm (8.0") Dual Concentric driver, using Omnimagnet technology

Low frequency
44 mm (1.75") voice coil, treated multi fiber paper pulp cone

High frequency
25 mm (1.00") PEI dome

Zinc plated steel

Reflex loaded UL 94V-0 rated ABS

Steel, with weather resistant coating

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

Clamping design
Security toggle clamp Min / Max clamping range 9.5 mm (0.37") / 60 mm (2.36") Recommended

clamp torque
1.5 Nm

Backcan options
Blind mount (BM)
Complete with fixed backcan

Pre install (PI)
Separate backcan for pre-installation

Cable entry options
Cable clamp & squeeze connector for conduit up to 22 mm

Conduit knockouts on PI Backcan
3 Sets of horizontal positions
19 / 22 / 28 mm (0.75" / 0.87" / 1.10")

Removable locking connector with screw terminals with “loop through” facility

UL-1480, UL-2043, CE

Bezel diameter
319.0 mm (12.56")

BM model: Front of ceiling to rear of backcan
310.5 mm (12.22")

BM model: Front of ceiling to top of safety loop
327.7 mm (12.90")

PI model: Front of ceiling surface to rear of speaker unit
125.6 mm (4.94")

PI model: Front of accessory backcan bezel to top of safety loop
168.5 mm (6.63")

Hole cutout diameter (all models)
295 mm (11.61")

Net weight (ea)
8.5 kg (18.74 lbs)

5.0 kg (11.02 lbs)

PI Backcan
3.7 kg (8.1 lbs)

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

Optional accessories
Plaster (mud) ring, Arco grille

Packed quantity

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