Into audio, moreso headphones than speakers admittedly. Gaming, drawing, and building cars and computers.

Headphones: off top of my head. I may have forgotten one or two

Zmf eikon
Zmf Aeolus
DCA Aeon 2 open
Focal Elegia
Focal elex
E-MU Teak
Denon dt5200
Nighthawk Carbon
Hifiman 4xx and 350,
Sennheiser hd-650 and 58x
Meze 99 Noir,
Beyerdynamic dt990
AKG 7xx,
Sony MDR1A
Audio technica ath-m50x and dsr9bt,
Koss kph30i
Koss porta pro
Koss ksc75
Philippe shp9500
Steel Series Arctis 7
HyperX Cloud Alpha

IN Ears: (not as much of a fan)

Hifiman Bolt
Bose soundsport wireless
Jaybird wireless
Powerbeat Pro true wireless
Some mee audio ones not important enough to remember.

Speaker: audioengine a5+ and a2+. Adam tv5 6 sonos play 1s (two as surrounds for beam and 4 independent), 2 Sonos play 3s (surrounds for playbar in office) and Sonos sub connected to play 3s and play bar.

Dacs:

onboard multibit dac on Jot
Bifrost 2
Geschelli enog 2 pro

Amps:

schiit jotunheim with multibit dac schiit
RNHP
Hagerman Tuba
Feliks Echo
Ifi zen can
Lake people g111
Zdt Jr.

Portable gear. Daps and such

hiby r6 pro.
Earstudio es100.
fiio m11
fiio btr5
little bear b4-x
Dragonfly red.