Seeing that your Pro-ject phono stage does not have balanced XLR outputs, you would have to use the unbalanced line level inputs on your new amp. Looking at the back of your amp, you have 4 to choose from. Take your pick.
VPI Traveler V2, Ortofon Rondo Blue, Simaudio Moon 110LP
Technics SL-1400, Audio Technica AT-14sa, Pro-ject Phono Box S
Marantz PM15S2 LE, Oppo 103, Simaudio Moon 100D
Dynaudio Focus 260's & a Rel T1 Sub