The Tannoy CMS 603ICT LS is a wide bandwidth, high power-handling and high sensitivity loudspeaker (certified UL-1480, category UUMW), for use with non-DC supervised systems. Built around CMS 3.0 – the third generation of Tannoy's revolutionary Ceiling Monitor System technology it incorporates a newly refined version of Tannoy's proprietary ICT™ point-source driver. The CMS 603ICT LS has been re-engineered for optimum compatibility with Lab.gruppen commercial amplifiers while also delivering consistent broadband directivity, precise articulation for voice and music, and exceptional long-term reliability.
The point source configuration of the Tannoy ICT driver's mid-bass and tweeter sections ensures a wide and controlled dispersion for optimum coverage, avoiding significant energy losses in the vertical plane at the crossover frequency, a flaw inherent in typical two-way designs. The ICT (Inductive Coupling Technology) drive unit also addresses two common component failures in background music systems: the tweeter and the crossover. Use of wireless electromagnetic coupling to drive the tweeter means that no crossover is required, making the ICT drive unit exceptionally reliable and ideal for applications where constant heavy usage is the norm. The mineral-loaded polypropylene cone material and nitrile rubber surround further enhance durability and long-term reliability.
The CMS 603ICT LS utilizes a 16 ohm driver, making it ideal for use in high performance low-impedance systems (with optimized performance when used in conjunction with Lab.gruppen LUCIA amplifiers). The low-insertion loss 60W transformer features convenient front bezel switching for taps at 60W, 30W and 15W, with an additional 7.5 W tap for traditional constant voltage systems.
The CMS 603ICT LS also features extra clamp extension to accommodate thicker ceiling panels, and a locking design that prevents inadvertent over-screwing. Magnetic grille attachment enables easy removal and fitting for custom painting and tapping changes with grilles now available as either traditional style (inset in bezel) or new Arco™ style, which conceals the entire unit for architect-friendly aesthetic appeal.
The CMS 603ICT LS is supplied with an integral zinc plated steel back-can, ready to install as a single unit and feature an integrated, recessed termination box. The removable locking connector has screw terminals for secure wire termination and loop-thru facility. Strain relief is provided by a clamping mechanism for use with plenum-rated cable or conduit, while new spring-loaded and self-aligning clamps make for even quicker and easier installation. All models are supplied with classic grille, two tile support rails and one C-ring; Arco grille and plaster (mud) ring are available as optional accessories.
| Performance | |
|---|---|
| Frequency Response (-3 dB) | 78 Hz - 22 kHz |
| Frequency Range (-10 dB) | 51 Hz - 24 kHz |
| System Sensitivity (1W @ 1 m) | 91 dB (1W = 4V for 16 Ohms) |
| Nominal Coverage Angle | 90 degrees conical |
| Coverage Angle (1 kHz to 6 kHz) | 105 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 | Average: 60W Programme: 120 Peak: 240W |
| Recommended Amplifier Power | 120W @ 16 Ohms |
| Nominal Impedance (Lo, Z) | 16 Ohms |
| Rated Maximum SPL | Average: 109 dB Peak: 115 dB |
| Transformer Taps | 70V: 60W (83 Ohms) / 30W (165 Ohms) / 15W (330 Ohms) / 7.5W (660 Ohms) / OFF & low impedance operation 100V: 60W (83 Ohms) / 30W (330 Ohms) / 15W (660 Ohms) / OFF & low impedance operation |
| Crossover | 7 kHz inductively coupled |
| Transducers | |
| Low Frequency | 1 x 6.50" (165 mm) treated multi fibre paper pulp cone |
| High Frequency | ICT™ aluminium dome |
| Physical | |
| Enclosure | Backcan: Zinc plated steel Baffle: Reflex loaded UL 94 V-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 | Security toggle clamp. Min / Max clamping range 9.5 mm (0.37") / 60 mm (2.36") Recommended clamp torque: 1.5 Nm |
| Backcan Options | Complete with fixed backcan |
| Cable Entry Options | Cable clamp & squeeze connector for conduit up to 22 mm |
| Connectors | Removable locking connector with screw terminals with "loop through" facility |
| Compliance | UL-1480, UL-2043, CE |
| Hole Cutout Diameter (All Models) | 9.96" (253 mm) |
| Included Accessories | C Ring Tile bridge Paint mask Cutout template Grille |
| Optional Accessories | Plaster (Mud) ring Arco grille |
| Packed Quantity | 2 |
| Color | White (Ral 9003) |
| Dimensions | Bezel Diameter: 10.79" (274 mm) Front of ceiling to rear of backcan: 10.10" (256.5 mm) Front of ceiling to top of safety loop: 10.78" (273.8 mm) |
| Net Weight (ea) | 11.93 lbs (5.41 kg) |
Usually arrives in 5-9 business days.
Usually arrives in 5-9 business days.
Usually arrives in 5-9 business days.
Usually arrives in 5-9 business days.
Usually arrives in 5-9 business days.
