Tannoy CMS 503DC LP 5" Full Range Ceiling Loudspeaker with Dual Concentric Driver (Low Profile,Pair) - TA-CMS503DC-LP

Tannoy SKU: TA-CMS503DC-LP
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Sale price$618.00


(Sold as a pair)

The CMS 503DC LP is a full bandwidth 240-Watt high sensitivity loudspeaker that utilises our third generation Ceiling Monitor System technology (CMS 3.0). Thanks to an all-new proprietary 5" Dual Concentric point-source driver with Omnimagnet technology on a Torus Ogive Waveguide, the UL certified CMS 503DC LP delivers wide and consistent broadband directivity with enhanced intelligibility – plus highly accurate and linear response.


  • Full range ceiling loudspeaker for installation applications

  • 60 Watts continuous, 240 Watts peak power

  • Next generation 5" Dual Concentric driver featuring Omnimagnet technology

  • Torus Ogive waveguide for improved high frequency response and directivity

  • Ultra-shallow depth profile for applications where cavity space is restricted

  • 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 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 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

  • 10-Year Warranty Program*

  • Designed and engineered in England

Data Sheet

Frequency response (-3 dB) (1)

88 Hz - 22 kHz

Frequency range (-10 dB) (1)

77 Hz - 24 kHz

Frequency range (-10 dB) (1)

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

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

Nominal coverage angle

90 degrees conical

Power handling (3)

60 W


120 W


240 W

Recommended amplifier power

120 W @ 16 Ohms

Nominal impedance (Lo, Z)

16 Ohms

Rated maximum SPL

107 dB


113 dB

Transformer taps (via front rotary switch)
70 V

30 W (165 O) / 15 W (330 O) /
7.5 W (660 O) / 3.75 W (1320 O) /
OFF & low impedance operation

100 V

30 W (330 O) / 15 W (660 O) /
7.5 W (1320 O) / OFF & low
impedance operation

Dual concentric point source driver

1 x 130 mm (5.0") Dual Concentric driver,
using Omnimagnet technology

Low frequency

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

High frequency

20 mm (0.79") 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)

Pre install (PI)

Cable entry options

Cable clamp & squeeze connector for
conduit up to 22 mm

Conduit knockouts on PI Backcan


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


UL-1480, UL-2043, CE

Bezel diameter

274.0 mm (10.79")

Front of ceiling to rear of backcan

98.6 mm (3.88")

BM model: Front of ceiling to <br />rear of backcan

BM model: Front of ceiling <br />to top of safety loop

PI model: Front of ceiling surface <br />to rear of speaker unit

PI model: Front of accessory backcan <br />bezel to top of safety loop

Hole cutout diameter (all models)

253.0 mm (9.96")

Net weight (ea)

4.7 kg (10.36 lbs)



PI Backcan

Included accessories

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

Optional accessories

Plaster (mud) ring, Arco grille

Packed quantity


At Creartion Networks, we do everything we can to create an excellent customer experience. This includes fast shipping and easy returns.

  • Most in-stock orders placed Monday-Friday before 1PM PST ship the same day. Orders placed after 1PM will ship the next day of business. General restrictions apply; please see our full shipping policy here.
  • We offer a 30-day return policy from the delivery date on many products. Product restrictions apply. Restocking fees for the return of open-box items. Please see our full return policy here for more information.

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