Firstly there are superb, beautiful alluvial termineau so there are possible to present in the "reverse" with style. There are powerful (500W rms) and we feel the tour is heavy but precise. He bit down very low and deep sound at low volume. Can be used in living room but requires a lot of power (150-300 WRMS quality). For me there are installed in a bass reflex box 49 L and is nickel.