Will Vincent ST-70 Tube Amp

@tooblue ."..but did not keep the amp long as it was not a good fit for my system."

tooblue, if you can share more - was it lacking drive or dynamics in any way, when paired with less efficient speakers by chance?

I ask because I have been working with a few different builders to decide to scratch build another set of lower power EL34 monos close to Will’s spec. My primary speakers are 93db/1w efficiency. I listen at LOW volume levels mostly. I don’t want to have to turn it up a lot to hear it. I won’t be replacing my speakers. I may be asking for too much out of these pseudo type EL34 amps. Any thoughts on yours, how and why you moved on...?. Thx.

I have one since March of this year and really like it.  Will is a perfectionist builder and the sound is excellent.  I owned an ST-70 with the VTA driver board prior to this and prefer Will's original version using NOS 7643 driver tubes. Will's is much quieter at idle too than my previous ST-70.  Mine is ultralinear 35wpc and he will do a triode version if you prefer that.  My primary amp is Atma-Sphere Class D monos.  Having owned tube amps for years I missed having one around to swap in and out for fun and change of pace.

Will built me a SET 45 amp on a Dynaco chassis that is superb! Beautiful gloss white powder coat finish, two C6C pentodes to drive the pair of 45's and a 5V4 rectifier. A first-rate SE DHT amp!