well I dont know sh^^ sounded good to me. I believe that with the amp it will be much better sound clarity etc, but for adding bass it sound great. imagine your staock system with real lows instead of the crap stuff.
and by the way I have the dsp with the crappy 5 inch speakers. or had.
I am going to put the amp in tomorrow and see what the soudn difference is will update after.

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M3