B+W DM603 S2

I had the DM603 S2 many years ago (my first and by by far most exciting hi-fi purchase). I found that a polite sounding amplifier such as Arcam will suit the somewhat bright aluminum dome tweeters. I used a Bryston 3B-ST which provided excellent dynamics and bass, but could be a little fatiguing with certain recordings.

I had 603 s3's. I will warn you to avoid tube amps with these, but the Jolida 1701 with the tubed preamp section would give you goosebumps with them. Also had good luck with a Cambridge Audio integrated, but the Jolida hybrid was magic.

I would recommend Rotel or Bryston. I have heard both and they were an excellent match!