Hello , I am a MOT (or will be once moderated). I design and build audio circuits for love and now money. I learned of SBFA when Sine asked to for a headphone amp (The BLACK AMP) cught his attetnion. It is now on a loaner tour. I fell in love with audio 68 years ago when I was 8. At 12 I started modding tube gear beginning a lifetime of designing and building audio devices of all kinds, high-end Hi-fi, studio, professional, commercial, theater, broadcast, along with acoustic design in sites and facilities. Started my own manufacturing company in 70s (The Quintessence Group), The first of 34 patents in early 1980 was for an efficient Class-A amplifier. Created over 50 products for a variety of companies (SAE, Adcom, Parasound, blaa, blaa, blaa - BFD. Took an hiatus in 1996 cratering the Blade computer, virtualization, then non-invasive medical devices. Retired in 2014, fell in love again with audio, hit woodshed for 5 year coming up with a different way to make gain happen, had an eargasm, designed and made what you see starting with austinaudioworks.com. This is fun, making Audio Art, causing people to have more fun with music. Makes life worth living. Music reproduction is an illusion, good audio art can make you hallucinate (let's he honest, there is no band or musician in the room with you when you listen), it is all in your mind. Which is exactly were everything else is. Thus my art has always been magical. By education I am a physicist and an anthropologist so I understand the measurement world and it sever limitations, that is too is an illusion for all need something to believe in drive. The Musings section of my website is were I post my thoughts on these issues . Please enjoy and remember, you know what is good if you like it, don't let anyone tell you that you are wrong, you are right.