Power conditioner/surge protection for Hegel H200?

I recently bought a Hegel H200 integrated which I'm very happy with, but it's plugged into a knob-and-tube 2-wire wall socket (via an adapter, of course) and I'm thinking my system the might benefit from some power conditioning. It's also been strongly recommended that I get some good surge protection for it. I've only done online research so far, looking at PS Audio Dectet, Richard Gray, Surgex, Shunyata and a few others. Would be grateful for recommendations.