Perfect sound from the beginning. Do I have to go now are. Bin usually Schreibfaul, barely reviews. But these boxes .... The BT is super. Coupled with the phone and working on the transmitter Melodic Rock Inside pure and the computer via TuneIn app. The sound .... awesome. It is believed that somewhere a sub is. Going out of the room, you can hear the bass even in some cases heatedly where you are holding. The drums can be heard very fine-tuned. By cable to the sound card, .... also unprecedented. Now I have 3 5.1 sound systems at the computer had, but here, this Edifier .... worlds better. Now playing the song "Alien Crash". The hammer bass, clear vocals, drums, for me hi-fi quality. Very surprised. Have in the living room, the Canton Vento 890 DC, and is not much difference in the sound quality. Clearly, the power, richer contrast, no one needs blabber now. But the Edifier standing right next to my screen ..... Any questions?