What's best SS amp for JBL Ring Radiators

[HipoFutura]

I have a tri-amp hifi setup. Phase Linear 4000 Series II preamp. Curcio MK III tube mono-blocks for the mids (JBL L100). Currently using a Phase Linear 400 for the subs (two Infinity Kappa Perfect 12.1D in seperate enclosures), but am building Anthony Holton's AV-400 as a replacement. I'm thinking ahead to the next project which will be a new power amp to driver the HF. I have a pair of JBL 2405 (and 2402H) UHF drivers in sperate enclosures. These crossover at 10K. They are extremely efficient - 40 Watts @ 8 ohms is 125 db.

I'm interested in opions as to the most suitable amp to drive these ring radiators. It needs low input sensitivity and not a whole lot of power. It must be fast and clean. Ring radiators hiss unless it is an extremely quite amp.

Don

[rcavictim]

At the risk of sounding biassed, when I read your post title question I think this is like asking, what is the best kind of turd to flush down a toilet? You are using tubes for your mid drivers where sound quality is clearly important. Good. Why would you want to use sand to drive the tweeters? SS has the advantage where big power is needed, like at bass frequencies where other qualkities of the signal are less critical but on the milliwatts into a tweeter?

Given the choice, the only time I`d be coupling transistors to a HF transducer would be in a ultrasonic cleaner.

I think this is a marvelous oppiortunity to develop a small dedicated SET class A amp. Given the frequency regieme (which conspires against quality output xfmers), and for the low power levels needed you might explore OTL.

Rolling up all the windows and engaging the power door locks now.