SKU: 2966872344

Tannoy CMS 603ICT PI Pre-Install Full Range Ceiling Loudspeaker (Pair, White) - 6"

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Description

Tannoy CMS 603ICT PI Pre-Install Full Range Ceiling Loudspeaker (Pair, White) - 6"The CMS 603ICT PI is a wide bandwidth 240 Watt high sensitivity loudspeaker that utilizes our third generation Ceiling Monitor System technology (CMS 3. 0). Thanks to an all new proprietary 6" ICT (Inductive Coupling Technology) point source driver with extended frequency range, the UL certified CMS 603ICT PI delivers consistent broadband directivity with enhanced intelligibility. ICT drivers provide exceptional long term reliability and are ideal for

The CMS 603ICT PI is a wide bandwidth 240-Watt high sensitivity loudspeaker that utilizes our third generation Ceiling Monitor System technology (CMS 3.0). Thanks to an all-new proprietary 6" ICT (Inductive Coupling Technology) point source driver with extended frequency range, the UL certified CMS 603ICT PI delivers consistent broadband directivity with enhanced intelligibility. ICT drivers provide exceptional long-term reliability – and are ideal for constant-usage applications.

Optimized for Installation
Specifically designed with a self-aligning 4 way clamp system for fast, simple and cost effective installation, CMS 603ICT PI also features extra clamp extension to accommodate thicker ceiling panels, and a locking design that prevents over-tightening. A convenient front panel tap switch for controlling the 60 W transformer mounted in the optional CMS 603 PI BACKCAN, 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.

LAB GRUPPEN Ready
CMS 603ICT 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.

Features

  • Full range ceiling loudspeaker for installation applications
  • 60 Watts continuous, 240 Watts peak power
  • 6" ICT (Inductive Coupling Technology) point source driver for extended frequency range
  • Pre-install version supplied without back can (available separately)
  • High durability design for constant heavy usage in demanding applications
  • 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 4 way clamp mounting system
  • Mounting C-ring and ceiling tile rails included

Specifications

Performance

Frequency range (-10 dB) <sup>(1)</sup>

46 Hz - 24 kHz

System sensitivity (1 W @ 1 m) <sup>(2)</sup>

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

Nominal Coverage Angle

90 degrees conical

Coverage Angle (1 kHz to 6 kHz)

92 degrees

Directivity Factor (Q)

7.1 averaged 1 kHz to 6 kHz

Directivity Index (DI)

7.9 averaged 1 kHz to 6 kHz

Power Handling (3)
Recommended Amplifier Power

120 W @ 16 Ohms

Nominal Impedance (Lo, Z)

16 Ohms

Rated maximum SPL
Transformer Taps (via front rotary switch)
Crossover

7 kHz inductively coupled

Transducers

Low Frequency

165 mm (6.50") mineral loaded polypropylene

High Frequency

ICT aluminium dome

Physical

Enclosure
Safety Features

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

CMS 603ICT LS

UL 1480 UUMW certification 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

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")

Connectors

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

Compliance

UL-1480, UL-2043, CE

Dimensions
Hole cutout diameter (all models)

253 mm (9.96")

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

2

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 2966872344

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Patricia Dodd
Houston, US
★★★★★ 5
surprised!
I actually didn't realize I had ordered "time released" version. I thought these were just normal melatonin. But now that I've tried these, I love them so much better than the regular version! Helps me sleep better through the night. No taste, love this brand of Source Naturals.
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Reviewed in the United States on October 17, 2025
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ChelaTho813
Dallas, US
★★★★★ 5
The only one I'll use!
As the title says, this is the brand to get!! It's fast-acting, doesn't give me weird dreams like some do, and I never wake up feeling groggy.
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Reviewed in the United States on March 13, 2025
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Belle of the Ball
Omaha, US
★★★★★ 5
Works wonders
I've been buying these for well over a year now as Subscribe and Save. I work 12 hour overnights as a nurse. My sleep schedule normally gets messed up. I would have no problem falling asleep but would wake up only a few hours later which is not good when you have work again that night. We buy these on Amazon due to the great price and the fact that they are extended release which helps keep me asleep longer. When I take 1 or 2 of them, I am able to sleep about 7-8 hours which is great. I take this both when I sleep during the day and sleep during the night. It helps me sleep no matter when and I am able to adjust my sleep schedule often. I have recommended them to many.
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Reviewed in the United States on January 10, 2013
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PSBone
Charlottesville, US
★★★★★ 4
Works quite well, dose still a bit high for me
Used to take the Natrol 5mg slow release, now that I can compare these 2, I love this more. It doesn't make me feel too edgy, it's quite relaxing actually. I still have to halve the dose as the full dose makes me groggy the next day. Where the Natrol gave me very vivid, but not unpleasant dreams, these don't make me dream as vividly. It does take a bit longer to get me to sleep, but once asleep, your asleep. Highly recommend, once I finish this bottle, I'd get the 2mg tr next time, as a lower dose works better for me.
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Reviewed in the United States on July 10, 2014
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Eudy Ernesto De León Batista
Waukegan, US
★★★★★ 5
Excelente Muy Satisfecho
Servicio excepcional, cuidadoso, el producto muy bien empacado. Y el tiempo de entrega fue el acordado. Y del producto ni hablar, excelente.
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Reviewed in the United States on February 3, 2026

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