By the way, I've read some people claiming that BHSE itself is a commercial version of the T2.
But I thought BHSE--or BH, to be exact--was originally KG's brainchild from the scratch, no? Plus, Stax has forbidden any third party from building T2's for commercial purposes, revealing its blueprint strictly for the sake of DIY. So I initially dismissed the idea, thinking it was a baseless accusation coming from jealy people who are trying to discredit KG's work.
But later, I realized that both T2 and BHSE share several similarities... Now I don't know much about an electrostatic amp design, but it seems more than a mere coincidence. For example, both are SOTA electrostatic amps with a separate power supply. Also, both are of a hybrid design, apparently. And both use a quad of EL34 tubes... something is fishy. Not to mention the fact that both T2 and BHSE are hailed as the best electrostatic amps in the market.
So here are the questions.
1. Is the BH really KG's original work? Or is intended it a modified version of the T2, designed by KG?
2. If the BH is a modified version of T2, what are the differences?
3. What are the differences between BH and BHSE? I assume that BHSE is superior, but in what ways?
4. Was BHSE also improved upon the BH by KG, or this time by Justin Wilson?