I know that the Harbeths like a good amount of solid state power, atleast 100 wpc, and even more like 150 wpc. The Musical Fidelities fit in that range. There is a web forum for Harbeth users on www.smartgroups.com. See http://www.smartgroups.com/group/group.cfm?GID=742402. You need to register, but there is much discussion about matches between amps and the speakers. I've got the Compact7's 2es, and they do well with a Odysee Stratos dual mono amp. Good luck, and let us know what you end up with.
