Bought unheard mainly because of the size and the attractive design for my boat me this product. My "sound-expectation" was not great - I expected only a slight rounding of the rather tinny sound of my 4 speakers (2 outside with diameter 14cm / 2 inside Canton surround speakers). A final stage much, due to the high power consumption, and thus I came to a powered subwoofer to me, if I have to save electricity, also can detaching. After the very easy installation, I was gobsmacked ... the sound is 1-1000 and it is a mystery to me how I could hear on the ship before mounting the woofer Music (... actually I found it by then quite well ... ). Also very convenient remote control cable with intensity modulation is - especially the effect of the woofer test. He needs power not much - my battery monitor shows only an increase of 0.1-0.15 Ah to when I fully turn up the woofer - that would have been a much higher output stage and I think the result would not be much ( if at all) have been better ... I have long been once again excited about a product !!
