Quote:
Originally Posted by wullaby
I had DSP with premium sound. It sounded awful. I recommend a low cost solution. Buy a used or new head unit ~150, used 4 channel amp ~150, then get a single subwoofer box with a mono amp ~200, you will sound way better for under $600. Using an aftermarket radio on the factory premium speakers with DSP AMP disconnected sounds great by itself, throw in a sub to get that little boom boom is a bonus!
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There is no need for an aftermarket deck (especially a cheap one) because the oem BMW decks are quite good, offering a balanced 5v output from the factory.
I'm using the factory NAV and it sounds excellent. I wouldn't recommend replacing it unless you were doing a $5k+, extremely involved SQ setup.