These are not the HI-FI speakers! it is said! and despite the total absence of wind or background noise. the grave is not the height of a box of 2.1 audio kit, so disappointed., Acute when you push the volume quickly become unpleasant, serious saturate seriously .in fact they lack sweetness and musicality MUCH especially in the midrange, so necessary to correct a digital equalizer because both bass and treble settings (filters, can not be improved without serious stain horribly and without the screaming more acute) are useless. But it's a shame annoys me and because aesthetics was perfectly successful, I do not find 30 watts per channel ... Note also the back of the powered speaker becomes very hot. Levent same !!! is that they take an entire evening ... my opinion is shared, and I'm not as enthusiastic as some testers, natural French ... I ... well for now.