$ 409.00
Full range ceiling loudspeaker for installation applications

80 Watts continuous, 320 Watts peak power

Next generation 6" Dual Concentric driver featuring Omnimagnet technology

Torus Ogive waveguide for improved high frequency response and directivity

Pre-install version supplied without back can (available separately)

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

Designed and engineered in the U.K.

Performance

Frequency response (-3 dB) (1) BM Backcan 75 Hz - 30 kHz
Frequency range (-10 dB) (1) BM Backcan 50 Hz - 30 kHz
Frequency range (-10 dB) (1) PI Backcan 46 Hz - 30 kHz
System sensitivity (1 W @ 1 m) (2) 91 dB (1 W = 4 V for 16 Ohms)
Nominal coverage angle 90 degrees conical
Coverage angle (1 kHz to 6 kHz)
Directivity factor (Q)
Directivity index (DI)
Power handling (3)
Average 80 W
Programme 160 W
Peak 320 W
Recommended amplifier power 160 W @ 16 Ohms
Nominal impedance (Lo, Z) 16 Ohms

Transducers

Dual concentric point source driver 1 x 165 mm (6.5") Dual Concentric 
driver, using Omnimagnet technology
Low frequency 44 mm (1.75") voice coil, treated 
multi fiber paper pulp cone
High frequency 25 mm (1.00") PEI dome

Physical

Enclosure
Backcan 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
CMS 603ICT LS UL 1480 UUMW certifi cation 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
Blind mount (BM) Complete with fixed backcan
Pre install (PI) 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
Bezel diameter 274.0 mm (10.79")
Front of ceiling to 255.8 mm (10.07")
BM model: Front of ceiling 
to top of safety loop
273.3 mm (10.76")
PI model: Front of ceiling surface 
to rear of speaker unit
100.7 mm (3.96")
PI model: Front of accessory backcan 
bezel to top of safety loop
168.5 mm (6.60")
Hole cutout diameter (all models) 253 mm (9.96")
Net weight (ea)
CMS 603DC BM 6.6 kg (14.6 lbs)
CMS 603DC PI 3.8 kg (8.37 lbs)
CMS 603ICT BM
CMS 603ICT PI
PI Backcan 3.7 kg (8.1 lbs)
Included accessories C-Ring, tile-bridge kit, paint mask, 
cut-out template, grille
Optional accessories Plaster (mud) ring, Arco grille
Packed quantity 2
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