Checking in.. Headphones: Sennheiser HD600/650/800 (all modded) Ultimate Ears UERM Headphone Amps: Eddie Current Studio Firstwatt F5T Schiit Valhalla 2 Possibly some other neat toys.. DACs: Schiit Yggdrasil Metrum Pavane Theta Gen V - Your experience with audio gear and if you've had experience with an R2R DAC previously/currently. Quite a few.. R2R is my jam. Few notable DACs I've owned: MSB Analog, Schiit Yggy, Aqua La Scala II - Also list if you're part of the music industry (engineer, musician, etc) or have some musical training on an instrument. Pianist for 14 years and minor musical engineering background. That is mainly in the past.. I'm just a good ol' enthusiast nowadays. Thanks for the opportunity!