SET vs PSET

Hi Kenny,
You achieve double the power because you doubled the # of output tubes used. I believe a SET would be a fine match with your Hornings. Your speaker deserves a high quality SET that has premium quality output trandformers and very stout power supply built.Good luck.
Charles,

This is an often discussed point for those in the SET world.Some will say the problem with PSET is getting both tubes to work in an identical manner. They say one tube does more than the other (they don't stay in a equal balanced harmony). Others strongly dispute this claim and say "proper" design and execution overcomes this problem. I tend to lean toward the latter camp and believe good implementation is the key for successful PSET amplfiers. I use a single tube(SET) but I don't need the additional power PSET provides. If added power isn't required, a single output tube is nice and simple.
Charles,

Jet,
You are right, Kenny describes what happens to the signal (phase splitting) with a push pull circuit I believe. The stated advantage of SET/PSET is the absence of signal splitting.

Some well regarded examples of PSET,
Audion Audio,
Absolare,
Border Patrol,
AN UK and AN Kits,
Purity Audio,
Wyetech Audio,
These cover a broad price range spectrum.

The PSET amplifiers do seem to cost quite a bit more than pure SET versions. Of course this means a higher efficiency speaker is required for the lower power SET but that's a choice worth considering IMO.