Tannoy CMS 603DC PI 6" Full Range Ceiling Loudspeaker with Dual Concentric Driver (Pre-Install,Pair) - TA-CMS603DC-PI

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Sale price$498.00


(Sold as a pair)

The CMS 603DC PI is a full bandwidth 320-Watt high sensitivity loudspeaker that utilises our third generation Ceiling Monitor System technology (CMS 3.0). Thanks to an all-new proprietary 6" Dual Concentric point source driver with Omnimagnet technology on a Torus Ogive Waveguide, the UL certified CMS 603DC PI delivers wide and consistent broadband directivity with enhanced intelligibility – plus highly accurate and linear response.


  • Full range ceiling loudspeaker for installation applications

  • 80 Watts continuous, 320 Watts peak power

  • Next generation 6" 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 when used with the optional CMS 603 PI BACKCAN

  • Low insertion loss 60 W line transformer with easily accessible tapping switch. Note that the transformer is mounted in optional CMS 603 PI BACKCAN

  • 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 4 way clamp mounting system

  • Mounting C-ring and ceiling tile rails included

Data Sheet


Frequency response (-3 dB) (1) BM Backcan

75 Hz - 30 kHz

Frequency range (-10 dB) (1) BM Backcan

50 Hz - 30 kHz

Frequency range (-10 dB) (1) PI Backcan

46 Hz - 30 kHz

System sensitivity (1 W @ 1 m) (2)

91 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 (3)
Dual concentric point source driver

1 x 165 mm (6.5") 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

Safety features

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


UL 1480 UUMW certifi cation for
Life Safety applications

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
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

Net weight (ea)
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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