Thats because it is dirty power. If I recall one of the bench tests on a BXI1608D. 40% gain started clipping at 800 watts of output or something like that and then ended up not even doing rated power to begin with.I've had 2 x of the new Hifonics equipment and both blew after 3 years. Also, the power seemed dirty. I got much cleaner response with an amp 2x the price. The hifonics often put out %20 less than rate, so they can be good cheap power, but don't be fooled into thinking those savings are you getting away with highway robbery, or that you have found the best deal. I think if you spend your money on something that won't fail you may save in the long run. Or, to really stick it to someone, use your amp for 2 years and sell it. :\
except for the fact that my Fosgate sounded a hell of alot cleaner, especially on deep notes than my 1508d on the same sublol all the people in here telling you "it won't sound good" and its a power hog.
except for the fact that someone I know has a 2610d on an SSx 15.22the one guy has a 1508d which is not the same so he bases his assumptions on that.