I highly recommend a tube preamp partnered with a Wyred for Sound ST 500 amp. I have B&W N802 and Concept 90 speakers. This combo is killer on both pairs.
Beware of all the hearsay recommendations from people that don’t own B&W speakers. My 2 cents.
Beware of all the hearsay recommendations from people that don’t own B&W speakers. My 2 cents.