Since I'm a manufacturer, I've stayed off this thread, but re-reading it- well, I am still an audiophile.
My first amplifier was a Knight Kit KA-95, which was a 35 wpc EL34-based integrated amp. From there I had a variety of Dyna St70s, MkIIIs, HK Citation 1 & 2 (all of which had to be repaired before I could use them). I also ran a Southwest Technical Products Tiger, which was a 100 watt/ch transistor amp, on the woofer section of my speakers (the mid/tweeter section used an EL-34-based Ampex amplifier). Ultimately began building my own amps from surplus chassis and the like in the mid- late 70s. Finally, I wanted my own chassis, drew a picture of it and got the sheet metal made up. That particular amp was a one-off, and it actually came through the shop for minor repair about a year ago. So its survived for 30 years.
These days I'm running a set of MA-1 MkIIIs.