Tannoy CMS501BM in ceiling speaker (single)

Tannoy CMS501BM in ceiling speaker (single)

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The Tannoy CMS501 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 and exceptional reliability.

The design comprises a 130mm (5.00î) ICTô 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.

The CMS501 is 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 CMS501 model versions and a separate back can are available to satisfy the vast majority of installation application requirements:

CMS501 BM (Blind Mount) - supplied with an integral back can.
CMS501 PI (Pre-Install) - supplied without a back can.
CMS501 PI Back Can (Pre-wire back can) - use with the CMS501 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 - 22kHz
Frequency Range (-10dB) (1) BM Back can 74Hz - 24kHz
Frequency Range (-10dB) (1) PI Back can 71Hz - 24kHz
System Sensitivity (1W @1m) (2) 89dB (1W = 2.45V for 6 Ohms)
Nominal Coverage Angle 90 degrees conical
Coverage Angle (1kHz to 6kHz) 105 degrees
Directivity Factor (Q) 5.6 averaged 1kHz to 6kHz
Directivity Index (DI) 7.0 averaged 1kHz to 6kHz
Rated Maximum SPL Average: 106dB
Peak: 112dB
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
Crossover 7kHz inductively coupled
Low Frequency 130mm (5.00\") mineral loaded
polypropylene ICTô
High Frequency ICTô aluminium dome
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 (0.75î / 0.87î / 1.10î)
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: 3.60kg (7.94lbs)
CMS501 PI: 2.90kg (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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