Closed backs I had in past:
AIAIAI TMA-2 - (absolute garbage sound quality)
Philips A5-PRO - (horrible comfort, torture device that happens to produce sound...can't tell sound quality because of the physical pain of wearing it...)
1MORE Triple-driver over-ear - (very nice sound, but on-ear pads are fairly uncomfortable and somewhat tight clamp)
Audeze Mobius - (very nice sound for a planar but build quality too cheap feeling and pads a bit too small)
B&O BeoPlay H7 - (very decent sound for wireless though a little too boomy low end, main issue is pads too small)
Beyerdynamic DT 177X GO with Impact Audio Cables custom single ended cable - (very nice neutral sound, little light on bass for my taste and not quite musical enough)
Fostex T40RP Mark III - (sound ok, but 'planar sound' I don't like and comfort is lacking)
Fostex T50RP Mark III - (sound ok, but 'planar sound' I don't like and comfort is lacking)
Fostex TH-X00MH with Lawton tune-up, ZMF Ori suede with Dekoni/original pads, removeable cable 2.5mm conversion by PETEREK - (Least liked TH-X00...Mahogany is just too laid back and fuzzy sounding and not punchy enough)
Fostex TH-X00PS, E-MU Palo Santo cups, Lawton tune-up [driver housing only], Yaxi Alcantara pads, custom in-pad attenuators - (most neutral and bright, treble focused Fostex presentation I've heard)
Modhouse Argon MK3 converted from Fostex T40RP MK3, deerskin strap and ZMF Lambskin pads - (dark and spacious sounding, though had nice amount of detail and planar speed. Simply light on subbass and a bit flat sounding compared to the Fostex Biodynas)
Modhouse T60RP Argon with deerskin strap and ZMF suede oval pads - (more neutral and a bit less spacious than the Argon MK3, a little brighter and slightly punchier as well.)
My current and absolutely favorite closedbacks:
Denon AH-D5200 with custom adaptor rings and Yaxi Alcantara TH610 pads - (newest and quickly becoming my favorite, digs deeper than TH-X00 Purpleheart and almost hits as hard, but more upfront mids. Just a bit thinner sounding than the Purpleheart but so detailed and tight sounding in comparison, also just a little bit less musical)
Fostex TH-X00PH with Lawton tune-up [driver housing only], Jmoney V3 sheepskin pads, custom in-pad attenuators - (subbass that hits like a freight train, warm and very solid sound. Bass has absolutely massive presence but lack tightness and punch of the AH-D5200. Very musical and pleasing sound.)
Sennheiser HD58X Jubilee with headphile Zebrawood cups sealed with Loctite Fun-Tak, Yaxi HD650 Alcantara pads w/ stock earpad foam kept - (Warm and Dark, absolutley beautiful for gaming as still keeps stock HD58X 3D holographic presentational nature and imaging. Subbass impact is not far off from the Denon/Fostex. Flatter sounding than the Denon/Fostex which is why its mostly just used for gaming/movies.)