Tube amp for Harbeth compact 7

If this speaker can be driven by a 15 watt Leben then there`re SET amplifiers that could drive this speaker also. It all depends on 'which' SET one is referring to. A 45 or 2A3 would be a poor choice(in SET mode,2A3 ok in push pull).A good 845 or 211 tube would have no problems. There are certain 300b SET(with stout power supplies and transformers) that could be considered as well.

It really depends on the quality level of the particular SET in question to form an opinion.There`s a wide range of performance among SET aplifiers.I hope there`s an opprotunity to try some with your speakers.
Regards,

Meiwan,
Good example, The Mastersound is well built and has very good transformers.Some people tend to clump SET amplifiers and don`r recognize the very broad spectrum they represent.
Regards,