Speaker Edifier R2000DB Black

Active bookshelf speaker with Bluetooth pairing capability for music playback
5 inch bass driver with Aluminum diaphragm and 1 inch tweeter driver
Optical and dual RCA inputs for connectivity to multiple audio sources
Class D amplifier system with Digital Signal Processing (DSP) and Dynamic Range Control (DRC)
Wireless remote control with audio source selection, mute and volume adjustment
Rear side panel controls bass, treble and master volume
Side panels with high gloss piano finish
100% MDF wooden enclosure to minimize acoustic resonance
Universal 100V-240V power supply 

Total power output:24Wx2 + 36Wx2 (DRC On)
Signal to noise ratio:?85dB
Distortion:?0.5%
Chanel Separation:?45dB
Input sensitivity:LINE 1: 900±50 mVLINE 2: 700±50 mV Optical:950±50 mFFs
Audio input:RCA, Optical, Bluetooth
Speaker unit:Tweeter: 19mm silk dome tweeter, Bass: 4 inch (116mm)
Dimension:Active speaker: 174x289x252 (mm) Passive speaker : 174x289x238 (mm)
Weight:Net 10.5Kg