The DAP HP-500 is a powerful and safe amplifier with bridge, parallel and stereo modesClass AB amplifierMetal housingColor: grayEfficient forced air coolingFull protection circuitsIP rating: IP20 (indoor use only)19"/2U designOutput per channel at 8 ohms from 20 Hz - 20 kHz: 150 WOutput per channel at 4 ohms from 20 Hz - 20 kHz: 200 WBridge output at 8 ohms from 20 Hz - 20 kHz: 400 WOutput channels: 2Output gain: 32 dBOutput mode: Bridge, Parallel, StereoOutput connector: 4-pin speaker connectorInputs:Mono inputs: 2Mono input connector: 3-pin XLRBalanced mono input Sensitivity: 1 dBuAudio specificationsTHD level: < 0.5 %Signal-to-noise ratio: > 100 dBSlope: 10 V/µsAmplifier technology: Class ABAttenuation factor: 100:1Overlay: 75 dBuFrequency response minimum: 10 HzFrequency response maximum: 20000 HzDimensions: (HxWxD): 88 x 483 x 310 mmInstallation depth (without plug): 310 mmWeight: 8,7 kg

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)