I had the combination of the Nagra PL-L and the Ayre MX-R's for about a year. The combination worked fine using the balanced outputs on the PL-L. The Nagra seemed to have a lot of gain, so the volume control was always set on the low side, even with the jumper inside the pre-amp set to low. Nonetheless, it worked nicely and was quiet.
I replaced the Nagra with the KX-R when it came out, and the improvement is obvious, but as a first step to the Ayre reference line, what you're suggesting should work well.
MJF
I replaced the Nagra with the KX-R when it came out, and the improvement is obvious, but as a first step to the Ayre reference line, what you're suggesting should work well.
MJF