without any skepticism I got me this amp for less money bought .. What here many criticize, but I am absolutely thrilled is that this amplifier has a fan! Meanwhile, TV / Hi-fi / Multimedia devices are sold without any cooling, then turn off after few hours in order to overheating and possibly never jump again. This fan produced as well as the PC etc. small disturbances, which can be heard in the loudspeakers, but only then, if you do not set the amplifier properly with the respective volumes! If you have your surround sound set correctly, as it also belongs to surround, then you hear nothing of noise! All inputs and outputs are working properly, the amplifier brings sufficient power for the living room, whether film or music. Thanks to the optical inputs can also connect PS3 perfectly or the receiver via the coax and you can enjoy the rich sound results. I can only recommend this amp and remember also that the speaker itself also play a big role!