I have the X-250 with B&W Matrix 803s. The work very well togehter and the amp gets better with every upgrade such as dedicated AC line, better power cords, ICs and speaker wire. You need to leave the amp on all the time for the maximum performance. Krell had better bass slam and bass control but not as musical sounding IMHO but they do mate well with B&Ws.
Pass Labs Aleph Amps & B&W Nautilus Speakers
Is anyone out there using Pass Labs Aleph Amps (Aleph 2's, Aleph 4's, or Aleph 1.2's) with B&W Nautilus Speakers (N802's or N803's)? What are your impressions (positive or negative) of this combo? Anyone using Pass Labs X Series (X250 or higher) with said speakers?