Nothing sounds better than the upgraded Burmeister in the AMG'S. At least when you're comparing factory systems. You could easily outdo both with a good custom setup but don't know how easy that will be on the B&W or Burmeister. I know upgrading the Bang and Olufsen was a PITA so I opted for the HK when I got my X5 in 2013 cause it's much easier to work with that or the base audio system in the BMW's.
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2014 X5 xDrive50i Mineral White | DinanTronics Stage 1 | Vossen HC3
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