[. . . ] Concourse C4 version3 19/3/04 11:01 am Page 1 CONCOURSE C4 ARCHITECTURAL SERIES DIFFUSE (DUAL) TWO WAY ENCLOSURE KEY FEATURES: Two way ported round ceiling loudspeaker with 4" LF, 1" soft dome tweeter and passive crossover 50watts program, 100watts peak Selectable 4ohm or 16ohm low impedance setting. [. . . ] The CONCOURSE C4 includes a back box and `C' ring for weight distribution on ceiling finishes. In addition, the C4 has an optional mud ring and ceiling tile mounting (with integral terminal box containing conduit knockouts). All components (including grill) are attached to a steel tether, which in turn is attached to an external anchor point. LF Driver: 4" Cone HF Driver: 1" Dome tweeter Crossover Frequency: 2. 2kHz PHYSICAL: Type: Two way passive ported design Material: ABS baffle, powder coated aluminium grill, steel backcan Connector: Terminal strip Dimensions (WxD): 252mm (dia) x 219mm Nett Weight: 2. 75kg Concourse C4 version3 19/3/04 11:01 am Page 2 CONCOURSE C4 STANDARD ACCESSORIES: Color: White with color matched grill cloth `C' Clamp: A `C' clamp is included with the loudspeaker to facilitate mounting on ceiling finishes. Tile bridge: Two 2ft/600mm rails are included with the loudspeaker for mounting on ceiling grids. Back box: Included with loudspeaker Mounting: Three swivel mounts which rotate away from the loudspeaker and clamp to the ceiling finish Transformer: 70/100 volt transformer included. ARCHITECTURAL & ENGINEERING SPECIFICATIONS: The loudspeaker shall consist of a two way system with a 4" low frequency driver, 1" dome tweeter and internal crossover installed in a ported plastic grill with a rear back box and `C' clamp and terminal strip connection. The loudspeaker shall have selectable 4 and 16 ohm impedance, as well as an integral transformer rated at 3015-7. 5-3. 75 watt taps @ 70volts and 15-7. 5-3. 75-1. 875 watt taps @100volts. [. . . ] PE29 6XU Tel: +44 (0) 1480 447700 Fax: +44 (0) 1480 431767 www. quadindustrial. com [. . . ]