Bidkidz, you actually aren't satisfied with your Pass X250? I know how highly you've praised it in the past. I own VT-100 Mk II with B&W 802 Matrix III. It is a great combination with plenty of power for me. The bass will not be what the X250 gives you, but it is very good for tubes. I wouldn't recommend the VK60. It will not be enough power for your 803's.