The manufacture of the body is treating coating carpeted with corners mtallique. Connects two sockets jacks 6.35 plastic one XLR microphone, bi-amp HF 30W 8 ohms, 2.5 ohms 180W LF. HP 38 inch Eminence low 2.5 ohms really low-end, the acute frquences mdium FCR N252XN 8 ohms they are wrong Yorkville mdiocres, piezo tweeter acute erased, without any relief, we do not just talk plutt of power, but noise, give you a sore head after 2 minutes, do not use them to animate the evening, but to make the fair on Sunday. Yes there is sound coming out, but frankly the price for this can be expected from the quality. Systm quite expensive compared to others, and that does not compete for more modestly priced speakers dun. To get good sound you buy a 15-band equalizer 31 band is not a more appropriate so original, the reproduction of the spectrum of these speakers is horrible. APRS rglage a little time and patience, we arrive at what may be something not too bad, in a rponse frquence acceptable, except, recess, in the extreme treble too bad they did not put a true tweeter in place of a piezo tweeter M short for such a mark, shame! So I recommend these speakers to anyone, especially for small grants. If you want a sound tape, go your way, or see other brands that offer much better products.