MF 33EN Architectural and Engineering Specifications DESCRIPTION The product shall be a two-way ceiling speaker designed for recess installation into ceilings or panels and especially 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. It shall feature a plastic cabinet with steel magnetic grille and is extremely easy to install. 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 105 dB Horizontal coverage angle 100° Vertical coverage angle 160° Frequency Response (-10dB) 80 Hz ÷ 22000 Hz Max SPL @ 4m 93 dB System Sensitivity 88 dB System Sensitivity 1W @ 4m 76 dB Power section Crossover Frequencies 2500 Nominal Impedance 8 ohm Power Handling 40 W Peak Power Handling 160 W PEAK Protections Thermal fuse - PTC Recommended Amplifiers DMA 504, DMA 162, DMA 82, DMA 162P, DXT 3000, DXT 4000, DXT 7000 Amplification Full Range Transducers Woofer 2 x 3.0'', 1.0'' v.c Dome Tweeter 1 x 1.0'' neo, 1.0'' v.c Input/Output section Input connectors Ceramic screw terminals Output connectors Ceramic screw terminals Constant Voltage Transformer 70/100 V Power selection 1 40 W - 250 ohm Power selection 2 20 W - 500 ohm Power selection 3 10 W - 1000 ohm Power selection 4 5 W - 2000 ohm Power selection 5 2.5 W - 4000 ohm Standard compliance EN54-24 certified Yes Safety agency CE compliant CPR number 0068/CPR/057-2019 Physical specifications Cabinet/Case Material ABS Hardware Ceiling mount brackets Grille Steel Color Black - RAL 9005 Size Height 516 mm / 20.31 inches Width 94 mm / 3.7 inches Depth 181 mm / 7.13 inches Recessed Depth 178 mm / 7.01 inches Weight 3.4 kg / 7.5 lbs The product shall be MF 33EN by RCF S.p.A.