Best integrated amp for about 2.5k

I'm looking to buy an integrated amp with home theatre pass through. Has anyone heard the musicial fidelty 5 or the Krell 400xi? Was wondering how they would sound vs. my McCormack dna 1 and tlc 1 preamp.

Speakers = Magnepan 1.6's, sub = rel b3. Cd player is naim 3.5 with flat cap.