At first I thought that the start / stop function does not work, but when set to -60dB sensitivity but suddenly everything went as desired. Switching off can be but some time - so 10 minutes can already be, to bring so be patient. The sound of a subwoofer is disappointing, it smacks not work properly because unfortunately my old Marmitek variant was significantly better. For passive stereo speakers like the system indeed be optimal for the control of an active mono subwoofer (LS input available) but it is not. It is only a boring, broader Bass Carpet transfer, sharp, precise bass not come about. Why this is so, I do not know. (Connection is made as with Marmitek the RCA subwoofer output of Yamaha and feed via RCA Y-cable into the vicious transmitter). Of course, leaving the metal version a quality impression, but the subwoofer control could be a bit crisper, also the IR remote control only works on view, better the transmission via radio would have been.