DMA 82 Architectural and Engineering Specifications DESCRIPTION The product shall be a two-channel class-D matrix amplifier, equipped with a powerful DSP platform, allowing managing inputs and outputs in terms of routing and equalization; moreover, dedicated presets for speakers have been implemented to optimize its acoustic performance. Output power: either 2 channels x 80 W RMS @ 4 ohm (each) or a single 160 W Hi-Z line. It shall be suitable for either desktop or rack installation. It shall have 2 stereo LINE audio inputs on RCA connectors, 1 MIC+LINE balanced audio input on removable screw terminals and a LINE audio output with a switchable low-pass filter useful for the connection to an active subwoofer. A dedicated input having RJ 45 connector allows the connection of up to four dedicated paging microphones (interlocked one another on a single chain). A wall-mount remote control can be linked to each output channel in order to adjust its respective volume level and select the desired audio input. Up to 4 audio channels can be sent to additional amplifiers (through a BUS with a single CAT5 cable), combining a flexible and scalable multi-room architecture with an easy connection and installation. Its configuration shall be user friendly and carried out through either its front panel controls (with OLED display) or RDNet (when dedicated optional board is installed). The matrix amplifier can be installed into a 19” rack cabinet through an optional accessory (required for every pair, as each needs half a rack unit). TECHNICAL SPECIFICATIONS The product shall have the following specifications Amplifier specifications Output Power 2 x 80 W @ 4 ohm 2 x 80 W @ 8 ohm 1 x 160 W @ 4 ohm (bridge) 1 x 160 W @ 8 ohm (bridge) Output power @ 70 V 1 x 160 W @ 70 V Amplifier Class D Frequency Response (-3dB) 20 Hz ÷ 20000 Hz Distortion (THD+N) @ 1 kHz nominal power <0.01 % Input section Total number of inputs 5 Balanced 2 Unbalanced 3 Mono 2 Stereo 3 Line inputs 3 Mic+Line inputs 1 Paging inputs 1 VOX Yes Line connectors JACK, Picoflex, RCA General Purpose Inputs (GPI) 1 Mic+Line connectors Euroblock VOX Yes Paging connectors RJ45 Paging command Contact Output section Signal output number 1 Signal output connectors RCA Power output connectors Euroblock Processing DSP Yes EQ Filters Yes FIR Yes Compressors Yes Tone controls Yes High-pass filter 80 Hz ÷ 200 Hz Configuration and control Configuration Front panel, PC Software RDNet Yes Protocols for system integration Proprietary RCF speakers presets Yes Protections VHF (Very High Frequencies) Yes Cooling Forced Short circuit Yes Thermal Yes DC Yes Fuses Yes Power requirement Power consumption 200 W Operating voltage 90-240 V~ 50/60Hz Standard compliance Safety agency CE compliant, UL 62368-1 Physical specifications Cabinet/Case Material Metal Color Black Rack mounting 1/2 19", 1U , Optional rack mounting accessory required Size Height 44 mm / 1.73 inches Width 213 mm / 8.39 inches Depth 314 mm / 12.36 inches Weight 1.7 kg / 3.75 lbs The product shall be DMA 82 by RCF S.p.A.