I have a park with 14 DS15. Front & back. Processor recommended if you have no amp that Depotter. It's a box of 800 watts (yes ...) range theater or wedge config. 4 5kHz and a little weak (hence the birth of the model S) 27 kg, a few sucks .. it sounds up to 13 meters. When you know them well, it's a pleasure. It is a budget ... but OCCAZ, c coool.