My dad has B&W CDM7SE towers and they sound incredible - definitely can't go wrong there.

Personally I have Klipsch Reference towers and they also sound really good. Not like the B&Ws but it is hard to find fault with them.

Another brand to keep an eye on is Paradigm. Similar price range as Klipsch with equally good sound via a different tone.

Nothing beats your own ears though - go to as many shops as you can and audition different brands in different rooms, see if the shop will let you listen to a pair in your home so you can really hear them.

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12 X5 M - 06 X5 4.8iS - 03 X5 4.4i - 03 M5 - 02 X5 4.6is - 99 M3 Dinan S3 - 98 M3 - 92 850i-6 - 92 850i - 91 325ix - 89 M3 2.5 - and a few parts cars