Phonostage with dual inputs?

I find it convenient when running 2 turntables[one with MC the other with MM] to be able just to push a button and play them off against each other. Problem is, my Musical Fidelity M1Vinyl phonostage goes to the shop sometimes for 6 weeks at a time for repair. Any ideas about a back up phonostage around $500 or less with separate MM and MC inputs to use when the Musical Fidelity is on the fritz?