ayre K-5xe anyone tried the mp upgrade

just wondering if anyone has had the mp upgrade performed on there k-5xe preamp, and could speak to the results. thanks
pinkus is correct, i will get this done , probably after the holidays, and will post the results.
I did the upgrade and I recommend. I did it last year so I can't give you a detailed comparison but there was a significant improvement. Wider soundstage and more separation of instruments. It is not an expensive upgrade and it will take your performance up a notch or two.
still waiting, i got on the upgrade list in jan. and they wont be able to do it till may.