Pass Labs vs. McIntosh Preamps

Interested in hearing from anyone who has experience with the Pass Labs x2.5 or x1 AND the McIntosh c2200 or c46. What differences in sound quality/presentation could I expect? And how significant would the differences be?

The pre will be mated with a McIntosh MC-402. Aside from the benefit of synergy with the Mac pre, are there any other obvious strengths with either manufacturer?

Thanks in advance for any responses!