Tannoy CMS501DC BM in ceiling speaker (single)

Tannoy CMS501DC BM in ceiling speaker (single)

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The Tannoy CMS501 DC is a full bandwidth; high power and high sensitivity ceiling monitor system; a compact unit that is specifically designed for applications requiring the combination of premium sonic quality for music and speech reinforcement, exceptional intelligibility and long term reliability. The design comprises a 130mm (5.00") Dual Concentric transducer mounted in a vented, injection moulded, paintable front baffle manufactured from UV/weather resistant UL94V-0 ABS material. Spring loaded self-aligning clamps make for quick and easy installation, while all models are also supplied with two tile support rails and one C-ring included in the package. A plaster (mud) ring is available as an optional accessory. Equipped with a low insertion loss 30W line transformer easily configurable to the following settings via front baffle mounted rotary tapping switch: 70V systems: 30W / 15W / 7.5W / 3.75W / OFF & low Impedance operation 100V systems: 30W / 15W / 7.5W / OFF & low Impedance operation Two model versions and a separate back can are available to satisfy the vast majority of installation application requirements: CMS501 DC BM (Blind Mount) - supplied with an integral back can. CMS501 DC PI (Pre-Install) - supplied without a back can. CMS501 PI Back Can (Pre-wire back can) - use with the CMS501 DC PI. The zinc plated steel back cans have an integrated, recessed termination box. The removable locking connector has screw terminals for secure wire termination and "loop through" facility. Strain relief is provided by a clamping mechanism for use with plenum rated cable or conduit.

Frequency Response (-3dB) (1) BM Back can     85Hz - 50kHz
Frequency Range (-10dB) (1) BM Back can     74Hz - 54kHz
Frequency Range (-10dB) (1) PI Back can     70Hz - 54kHz
System Sensitivity (1W @1m) (2)     89dB (1W = 2.83V for 8 Ohms)
Nominal Coverage Angle     90 degrees conical
Coverage Angle (1kHz to 6kHz)     109 degrees
Directivity Factor (Q)     5.9 averaged 1kHz to 6kHz
Directivity Index (DI)     6.9 averaged 1kHz to 6kHz
Rated Maximum SPL     Average: 107dB
Peak: 113dB
Power Handling (3)     Average: 60W
Programme: 120W
Peak: 240W
Recommended Amplifier Power     120W @ 8 Ohms
Nominal Impedance     8 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
Crossover     2kHz - 2nd order LF, 2nd order HF
(with dynamic HF protection)
Low Frequency     130mm (5.00") Dual Concentric constant
directivity driver with multi fibre paper
pulp cone
High Frequency     19mm (0.75") titanium dome with
neodymium magnet system
Enclosure     Back Can: Zinc plated steel
Baffle: Reflex loaded UL 94V-0 rated ABS Grille: Steel, with weather resistant coating
Safety Features     Safety ring located at rear of enclosure
for load bearing safety bond
Clamping Design     Min / Max clamping range: 8.0mm (0.32") / 29.0mm (1.14")
Recommended clamp torque: 1.5Nm
Back Can Options     Blind Mount (BM): Complete with fixed back can
Pre Install (PI): Separate back can for pre installation
Cable Entry Options     Cable clamp & squeeze connector for
conduit up to 22mm
Conduit Knockouts     3 Sets of horizontal positions: 19 / 22 / 28mm (0.75" / 0.87"/ 1.10")
Connectors     Removable locking connector with screw
terminals with "loop through" facility
Safety Agency Ratings (pending)     UL-1480, UL-2043, CE
BM Hole Cutout Diameter     190mm (7.50")
PI Hole Cutout Diameter     190mm (7.50")
Dimensions     Bezel diameter: 210mm (8.20")
Front of ceiling to rear of back can (BM): 189.5mm (7.50")
Front of ceiling to top of safety loop (BM): 207mm (8.10")

Back of ceiling surface to rear of back can (PI): 136mm (5.40")
Back of ceiling surface to top of safety loop (PI): 154mm (6.00")
Net Weight (ea)     CMS501 BM: 3.90kg (7.94lbs)
CMS501 PI: 2.85kg (6.39lbs)
PI back can: 2.60kg (5.73lbs)
Included Accessories     C Ring, tile bridge, paint mask,
cutout template, grille
Optional Accessories     Plaster (mud) ring



Providing your item is in stock, the order is usually dispatched within 24 hours. Postage and packing is completely free for orders over £100*. Out of stock items will be dispatched as soon as they become available, out of stock items can take between 4 to 21 days for dispatch.


Orders are sent via our couriers' DPD on a next-day-delivery service and usually, take between 1 and 3 days. 


Please use this link to find more detailed delivery information.


*We ship free of charge to mainland UK addresses, excluding the Scottish Highlands or 'Out-Of-Reach' Scottish locations. Please consult the post-codes below to see if your location falls within this category. If you are still unsure, please contact us on 01432 354921. We also ship to Northern Ireland, Channel Islands, Scilly Isles, Scottish Isles and Scottish Highlands, however, delivery to these locations will incur a charge and can only be sent via a 2-day service.

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