Phaub16,
In my earlier post I said the VAC REN amps are "excellent amps and I'm very familiar with their sound/character. This is a 300b push pull design. Contray to popular belief I don't recommend SET amps regardless of the situation or speaker in question.
I do believe they have wider application than given credit but again it depends on the speaker and its load impedance, phase angles etc. As much as I enjoy my 300b SET I've discouraged some interested parties from pursuing it due to their current speakers. It is certainly a matter of the right and compatible match.
I do believe a robust 805 tubed SET such as the LM 508ia would be fine with your speaker based on owners of this amp who have similar speakers. Again the VAC REN would be an equally fine choice.
There are pentode tube (KT 88, 120,150,6550,el 34 etc.) that would be fine. I just happen to think that DHT tubes are better sounding but that's just me.
Charles