While I agree that the cj/Pass Aleph combo is not the best way to go because of the impedance mismatch, I do want to point one thing out. Arupg is considering Aleph 1.2's not Aleph 2's. While they share the same topology, the Aleph 1.2 is a whole diffent animal than its little brother. The 1.2 is 200 watts into 8 0hms and about 300 into 4. Having spent time with both amps, this extra power seems to make a lot of difference.
I am currently using 1.2's on Wilson speakers and have all of the bass performance you could ever want. It is tight, deep and very controlled. I to have used the Alephs with BAT preamps (the VK-5i and the VK-50se) and found it to be a pretty synergistic combination (the 50se was the better match). Like John, the best results I got was with a Pass preamp (which is not surprising given the natural synergy of using components from the same manufactuer. The combination of a Pass X0 pre with the 1.2's is hard to beat.
The 1.2's will do an excellent job of driving the B & W's but I would not recommend using the cj preamp with them.
I am currently using 1.2's on Wilson speakers and have all of the bass performance you could ever want. It is tight, deep and very controlled. I to have used the Alephs with BAT preamps (the VK-5i and the VK-50se) and found it to be a pretty synergistic combination (the 50se was the better match). Like John, the best results I got was with a Pass preamp (which is not surprising given the natural synergy of using components from the same manufactuer. The combination of a Pass X0 pre with the 1.2's is hard to beat.
The 1.2's will do an excellent job of driving the B & W's but I would not recommend using the cj preamp with them.