DEar John
I have had the p9ltd and now have the c8ltd. I run solid state and not, if you will, as high end amps as dave. I use the musical fidelity nuvista m3 integrated and the amp has worked very well with both. Well enough in fact that I have felt no desire to upgrade in the near future and have had the combo for over 3 years. I think the muse should work just fine, though I have not heard the two together.
With regards to the p-10 vs the c8ltd it depends a bit on room size, taste and of course the amount you wish to spend. I posted a preliminary review on the c8ltd about a year ago and it has just gotten better with time. The c8ltd coaxial midrange/tweeter ribbon really is glorious and while I never thought I would replace the p8ltd I can tell you all my friends had no question when we listened to the two side by side.
If you have any questions don't hesitate to drop me a note.
By the way, I always preface all of this by saying that since the time the review was posted, and long after I bought my speakers, I have become the canadian rep for piega so everything I say must be taken with a grain of salt.
Gary