Universal 19" preamplifier with audio player, Bluetooth and FM radio For quick-access music playback control in restaurants, gyms and retail locations Built-in audio player with Bluetooth receiver Stream music wirelessly from your mobile devices (e.g. smartphone, tablet) via Bluetooth USB 2.0 input and SD card slot 5 stereo line inputs 4 RCA L/R connectors on the back panel and 3.5 mm connector on the front panel Audio source selector Controls for volume, bass and treble 1 microphone input with controls for volume, bass and treble on the front panel 3 stereo master outputs Rack installation, 1 U Master Equalizer: 1 x 2 band tone control Stereo Power supply: 115/230 V AC, 50/60 Hz Power consumption: 5 W Frequency range: 20-20000 Hz, ±0.5 dB S/N ratio: 100 dB Distortion factor: 0.05 % Input impedance: 20 kohms (balanced), 10 kohms (unbalanced) Input sensitivity: 1 V Input connectors: Line 1-4: RCA L/R Mic: combination XLR/6.3 mm jack Aux: 3.5 mm stereo jack Output connectors: RCA L/R, 6.3 mm jack L/R, XLR L/R Dimensions: 483 x 128 x 44 mm rack installation, 1 U Weight: 1.8 kg Audio player: Playback format: MP3, WMA, WAV Available storage media: USB devices and SD(HC) cards up to 32 GB File system: FAT16/32 Bluetooth: Carrier frequency: 2.4 GHz Range: approx. 10 m Audioplayer: USB + SD + Bluetooth + FM Radio Weight: 1.87 kg