Peter, I can't offer specific recommendations for you but I do want to offer my sympathies. I have been in similarly frustrating situattons with new components many times.
I will say that I also have ProAc 2.5's and, for a while, drove them with an Aleph 3. That combination had a surprising amount of bass weight, more than I get from the Pass X-150, for example.
You are driving the amp directly from the CD player? You might want to try inserting a preamp (just borrow one) and see what kind of difference that makes. Could there be an impedence mismatch or some other form of incompatibility going on?
Good luck! -dan
I will say that I also have ProAc 2.5's and, for a while, drove them with an Aleph 3. That combination had a surprising amount of bass weight, more than I get from the Pass X-150, for example.
You are driving the amp directly from the CD player? You might want to try inserting a preamp (just borrow one) and see what kind of difference that makes. Could there be an impedence mismatch or some other form of incompatibility going on?
Good luck! -dan