Just as a side note, speakers need to be broken in also, after 20-30 hours the sound will be richer on either system. At dealer they both sound like crap.
2008 E92 M3 Jerez Black,DCT,Fox Red ext,Prem,Tech,19", ipod/usb, CF roof and trim
2010 E91 328i Space Gray,Black int, M sport, most options
2007 Montego Blue 335i (retired)