The auna AV2-CD508BT is a retro-styled, 4-zone stereo amplifier that delivers dynamic and differentiated bass, midrange, and treble sound at 8x50W RMS output. The connection options of the 4-zone amplifier are based on the HiFi standard. Thanks to the built-in Bluetooth interface, smartphones, tablet PCs and computers can be wirelessly integrated into the audio system for music playback. On the back, the stereo amplifier has three AUX inputs for radio receivers, tape decks, CD players and other equipment. Incoming signals are easily forwarded to other devices via the audio output. In addition, there is a front USB port with which MP3 or WMA files can be played. The highs and lows can be controlled separately and adapted to your own musical taste. In addition, the volume can be adjusted separately for all 4 playback zones. All functions can also be conveniently made via remote control.