MR 52EN Architectural and Engineering Specifications DESCRIPTION The product shall be a multipurpose two-way bass-reflex speaker, suitable for a wide range of applications, providing a balanced sound in near-field applications. It shall be suitable for broadcasting background music into commercial spaces, but also alarm messages, thanks to the highly intelligible voice reproduction and the EN 54-24 certification. Its design shall be elegant and compact with accurate finishing, suitable for almost any environment, even with architectural constraints. It shall be equipped with a 5” woofer and a 1” dome tweeter and shall include an internal transformer (with a power selector on the rear side) that allows the connection to 70 / 100 V constant voltage lines. The terminal connection blocks, for input and output flameproof cables, shall be made of ceramic material. A thermal fuse shall protect the line integrity in case of heat affecting the speaker. TECHNICAL SPECIFICATIONS The product shall have the following specifications Acoustical specifications Max SPL @ 1m: 103 dB Coverage angle: 180° Frequency Response (-10dB): 80 Hz ÷ 20000 Hz Max SPL @ 4m: 91 dB System Sensitivity: 89 dB System Sensitivity 1W @ 4m: 77 dB Power section Power Handling: 30 W Peak Power Handling: 120 W PEAK Protections: Thermal fuse Recommended Amplifiers: DXT 3000, DXT 4000, DXT 7000 Transducers Woofer: 5.0'' Dome Tweeter: 1.0'' Input/Output section Input connectors: Ceramic screw terminals Output connectors: Ceramic screw terminals Constant Voltage Transformer: 100 V Power selection 1: 30 W - 333 ohm Power selection 2: 15 W - 667 ohm Power selection 3: 7.5 W - 1333 ohm Power selection 4: 3.75 W - 2667 ohm Standard compliance EN54-24 certified: Yes Safety agency: CE compliant CPR number: 1488-CPR-0591/W Physical specifications Color: White - RAL 9016, Black - RAL 9005 Size Height: 242 mm / 9.53 inches Width: 192 mm / 7.56 inches Depth: 190 mm / 7.48 inches Weight: 3 kg / 6.61 lbs The product shall be MR 52EN by RCF S.p.A.