my problem with this amp is that if you do not hook it up through the high/low connectors(which are provided),then you will have to run 2 sets of rca cables to get all 4 channels to work. so i ended up spending about $40 bucks getting another pair of rca cables and 2 rca splitters for the inputs on the head unit. in retospect, i would have rather spent the extra $40 on a different amp.i’ve had it installed for about a week, and have no complaints on the performance(running 2 sets of 6.5 audiobahn mid/bass speakers)after spending time tuning everything. if i have any problems with the longevity of the amp, i will definately update my review.Update…….Amp quit after two weeks, save your money and buy something name brand.