I bought this speaker after a long search and the many positive reviews. I open the box and Amazon until now everything is great (as always). Then I open the box of the speaker and realize: the bags are torn and distributed throughout the bag in which the speaker is packed with the granules against condensation. The beads are even came into the bass reflex holes from which they never get out again without removing the subwoofer. Have me from the loudspeaker directly bought two and two in the same ... torn granules sachets. But have they first connected, turn on and realize: they sound anything but good. These speakers can be no more than make noise, nothing more. The heights are almost not available and the sound is generally terrible. Even with the EQ (equalizer), I could not save much. Have the times then connected to a slightly better amplifier of my friends and they still sound bad. Input sources were quite normal music from the laptop (320 kb / s MP3 and Flac), an audio 4DJ audio interface on a laptop, CD and MiniDisc players. In addition, I've also tried it yet with a Behringer mixer in between, but again it sounds bad. Only the combination: good Kenwood amplifier + MiniDisc player gave an optimal result. For the price of these "PA Speaker" is not the worst possible, but for those who value quality, should look around for other speakers. Have they returned and instead the AEG LB 4711 ordered me. Compared to the Kenwood speakers they sound fantastic and are even cheaper.