@toddcowles Congratulations on the XP-20 purchase. Though I don’t have direct experience with your McIntosh preamp, I believe you will find your system ’sound’ with your new Pass Preamp in it will be different than with the McIntosh Preamp. This is based on my hearing of the ’general’ Pass and McIntosh ’house sounds.’ Do share your findings with the Pass pre and any differences / preferences between the two preamps.
I have the XP-20 and am very happy with it. Isolation did help, but it wasn’t as major of a factor as with some of my other components. Pass strongly recommends keeping the factory supplied power supply umbilical. I do have an aftermarket pc into the Power Supply..... Pass doesn’t feel a great need for one and I generally, but not totally, agree (with their assessment with respect to the power supply).
I have the XP-20 and am very happy with it. Isolation did help, but it wasn’t as major of a factor as with some of my other components. Pass strongly recommends keeping the factory supplied power supply umbilical. I do have an aftermarket pc into the Power Supply..... Pass doesn’t feel a great need for one and I generally, but not totally, agree (with their assessment with respect to the power supply).