DMA 82 is a two channels Class-D matrix amplifier equipped with a powerful DSP platform, allowing managing inputs and outputs in terms of routing and equalization. A complete set of processing functions is available, including presets for RCF speakers, proprietary bass enhancer algorithm, FIR filters, and environmental equalization. Thanks to its extremely compact size, accurate design, and robustness, it is ideal for a wide range of business music applications.FEATURES2 x 80 W Class-D power amplifier20 ÷ 20000 Hz frequency rangeFull on-board processingRCF speakers’ presetsProprietary bass enhancer algorithmFiRPHASE linear phase filtersFlexible and scalable multi-room architectureSuitable for desktop or rack installationRDNet ready for networked managementRemote controls and paging console accessoriesAMPLIFIER SPECIFICATIONSAmplifier Class: DNumber of channels: 2Output power @ 4 ohm (W): 80 W RMSOutput power bridged @ 4 ohm (W): 160 W RMSOutput power @ 100 V (W): 160 W RMSFrequency Response (-3dB): 20 Hz ÷ 20000 HzSignal/noise rate (”A” weighted): >93 dBDistortion (THD+N) @ 1 kHz nominal power:

Output Power:- 150W RMS Per Channel @ 4 Ohms, 1kHz, 0.1% THD 100W RMS Per Channel @ 8 Ohms, 1kHz, 0.1% THD- Bridge Mode, Mono 300W RMS @ 8 Ohms, 1K Hz, 1% THD^- Total Harmonic Distortion: Less Than 0.1% (20Hz - 20kHz @ 8 Ohms)- Class D- Frequency Response: (+/-01db, @rated output Power, 8 Ohms): 20Hz - 20K Hz- Slew Rate: 15V Per usec- Damping Factor: @ 8 Ohm: 260- Impedance: 20 Ohms balanced / 10 Ohms unbalanced- Cooling System: 2 indivdual fans- Special Features: High/Low Pass Filter/Input Sensitivity Selector/Ground Lift- Input: XLR 3pin + Jack 6,3mm- output: Speaker + Binding post- Dimensions (LxWxH): 336 x 482 x 44mm 1-rack mount space- Weight: 24 lbs.(11kg)

If you need a compact, high-powered amplifier that sums stereo signals into a mono output for paging, P.A. announcements and background music applications, the Denon Professional DN-280 is the ideal solution. With a space-saving, one-half rack space profile, the DN-280 features a microphone input for paging, a front panel 3.5mm (1/8-inch) AUX input and stereo analog inputs (summed to MONO) for signals from external playback devices such as an iPhone or stereo tuner.The amplifier handles a 4O load or 70V/100V speaker runs, perfect for multiple speaker setups in small retail stores or doctor’s offices. A cool-running, powerful Class D amplifier delivers 100 watts with 95dB, ensuring extremely clean performance under all conditions. The DN-280 has built-in short circuit protection and front-panel LED indicators for signal present, clipping status and thermal interruption.Class D 100W mono amplifierTrim one-half rackspace height - rackmountable or stand-aloneRemovable feet and option to mount two units together in a 1RU spacePaging microphone input with gain controlTone and master volume controlsRCA inputs (L/R stereo inputs summed to MONO)3.5mm (1/8”) AUX input70V/100V/4O Euroblock outputTotal Harmonic Distortion: 95dB (A-weighted)Damping Factor: >200 (1k 8O)Output Power: 60WConnectors(1) Euroblock channel output(1) Dual RCA input(1) XLR / TRS 1/4” (6.35mm) combination input(1) TRS 1/8” (3.5mm) auxiliary inpuInput SensitivityDual RCA input: 0+/-1dBvAuxiliary input: -10+/-1dBvCombination input: -30+/-1dBvInput Impedance: 20kO balanced or 10kO unbalancePower100V ~, 50/60Hz, 100W110–120V ~, 50/60Hz, 100W220–240V ~, 50/60Hz, 100WVoltage Gain: 40+0/-1dB (100V)Dimensions (width x depth x height): 7.9” x 10.7” x 1.7” (200 x 273 x 43mm)Weight: 5.3 lbs. (2.4kg)