For the BOLD words I use to describe sonic characteristics, their definitions can be found here… https://www.head-fi.org/threads/the-diyrs-cookbook.781268/
Purp-Amp 71A & 6BQ7A HP Amp - 6L6GC & 6CG7 spkr Amp - Schiit Yggdrasil v.2/JggyB (light mods) - Ragnarok/The Rok (light mods) - HD800-Jmod Gen-6 - Shunyata Python & α-Digital & Anaconda XLR (modded) - RedNet3 AOIP (modded)- Mutec 3+ & 3+usb (modded) - WAQy chips - Akiko canisters - SR fuses - 'Other' Tweaks aplenty