I agree with Tpsonic. From my inquiries, the BAT VK-60 doesn't have enough juice. From my own experience with 802 Matrix, they mate well with an Audio Research VT-100 Mk2, or Rogue monoblocks.
In other words, use a push-pull tube amp of 100 w., and you'll get good drive, punch & flesh out the B&W sonics.
In other words, use a push-pull tube amp of 100 w., and you'll get good drive, punch & flesh out the B&W sonics.