Current:
SPL Phonitor e, Rupert Neve RNHP, Topping D90
HiFiMan Arya, Focal Clear, Audeze LCD-X, Focal Elegia,

Caught and released, or on mothballs:
Massdrop THX AAA 789, Topping D70, JDS LAbs Atom, Khadas Tone Board, Objective Amp
Focal Elex, HIFiMan HD4xx, Neumann NDH20, Beyerdynamic DT1770, Modhouse Argon, Fostex T60RP, ZMF Aeolus, Audeze EL-8, Fostex TH-R00 Mahogany, Sennheiser HD650