in one corner, the US ACoustics USX 4085
the other corner...
i claim that the 4085 is a far superior amp than the mrv-f540...because of many factors 1) power, 2) low fuse rating, and 3) PRICE
Mr A claims, i quote, "As far as the 4 channel the Alpine destroys the US acoustics but for the 400 dollar price difference this isn't a suprise. Once again its its better circuitry design and control that make it a better amp..."
US Acoustic Specs: http://www.usacoustics.com/newline/u...085/index.html
Alpine Specs: http://www.alpine1.com/html/D2_n_1_n_n.html
you be the judge