Well, unlike you, Kevin Gilmore, who posts here from time to time, has designed some of the best electrostatic headphone amps in the world (KGSS Carbon, KGSS grounded grid, KGST, Blue Hawaii, etc.), and received permission from Stax to clone their SRM-T2 for DIYers. He does this for fun, and not for profit. He posted on another site that a no-feedback amp, which Trilogy says their's is, will have problems with stability due to tube warm-up, etc. I am inclined to believe him.
I have designed and built modifications for the SRM-T1, and designed and built the SRM Plus, which is based on an original Stax DIY schematic, and have posted on another web site in infinite gory detail why current source output loads are much better than resistor loads for electrostatic headphone amps in particular, so when I stated in post #12270 what the technical concerns were about the Trilogy design, I was not blowing smoke. You don't have to apologize for anything, I'm just trying to make you a better educated consumer. Unless you believe ignorance is better than knowledge... Electrostatic headphone amps are very high voltage devices, electrostatic headphones are very, very high impedance and highly reactive, and the rules for driving them are different than for dynamic headphones, low voltage preamps, and relatively low voltage, high current amps for loudspeakers, which is what Trilogy has built prior to now. Again, if you are able to attend the Trilogy presentation, I suggest you ask them the questions I listed in my previous post, and not rely on their previous reputation. Engineering amplifiers is both an art and a science, and if you know a bit about the science behind it you'll be better able to judge whether the Trilogy has a chance of being as good as they claim. If you choose to ignore the science part, well, you know the bit about a fool and his money...
. Ready to go....
. Perhap it would be a Meme that last for generations into the Audio world
