Have had the BSW system installed for several years. I have DSP. The system I have upgraded all speakers, added an amp and subwoofer. As already mentioned it is all plug and play. I also added the Dice, then the Dice silver and now have the media bridge. The difference is huge. I am very pleased. I am not an expert on sound but based on the compliments the result seems to meet most standards.

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X5 4.6 2002 Black Sap, Black interior. 2013 X5M Melbourne Red, Bamboo interior
Dallas