Quote:
Originally Posted by ryansbmw
Ive heard good things about the upgraded bimmertech amp in other platforms. If this is anything like my e39, when I replaced my dsp amp with a custom crossover and alpine amp, I noticed tremendous sound improvement with the stock speakers. Crystal clear sound, good bass. I was very happy and surprised how good the stock speakers sounded with decent power supplied to them.
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This, pretty much this.
I replaced my speakers with the bavsound stuff, and after looking at what is factory, frankly they look decent, and just need more power, better xover and eq'ing.