NAGRA PL-P XLR option

Hi all
I have a Nagra PL-P, and only has a phono input, I have 2 turntables.
? What should I do to connect the 2 turntables and able to hear one or another ¿
by whether it works well I have a phono preamp, Threshold.
? One could connect this output to the auxiliary input or other
login PL-P
I hope someone who has this issue resolved I should answer me do.
Thanks for everything and greetings

A friend of mine went from PL-L to PL-P after he got his Avid turntable, and also thought that the PL-P sounded better than PL-L on line level inputs (CD). So it seems that PL-P is the way to go.

Thank you for answer!
So, I will use through some weeks Pl-p with Jensen autotransformesr:
http://www..jensen-transformers.com/datashts/pc2xr.pdf
I think what it is good compromissed situation. If for somwbody it will be interesting, I will post little about Jensen+Nagra

I have heard the PL-P and PL-L at the same time. They definitely sound different and I preferred the PL-P, which I bought. By the way, if you get the PL-P, you should listen to vinyl through it as that is amazing (and really why I bought it). Interestingly, the PL-P's measurements show more distortion than the PL-L.

So, I need to choose between Pl-l XLR and Pl-p without XLR. Amps are VPA monoblocks, so my friend told me PlL is better than PLp in this setup.
All my CDPs and Nagra DAC has balanced outputs and what reason to use RCA in top preamplifier??????? But Plp has a battery power supply....
So, I need a help!