Far too much.
TTs: Michell Orbe (DC), Michell Gyro SE with lots of mods and my own motor/controller, Technics SL1200MkII
Arms: SME IV, Michell Technoarm (a), Rega RB300 with Incognito wiring, Decca International
Cartridges: Allaerts MC1b, Lyra Delos, Lyra Dorian, Benz MC Scheu, two Denon DL103, Denon DL-301 (lent out), Shure M97xe, Shure M44c
DACs and streamers: Apogee MiniDAC, Pioneer N50, TEAC UD-501, Audioquest Dragonfly 1.2
Disk spinners: Denon DVD2930, Rega Planet, Marantz CD52SE, Pioneer BD in the living room
Phonostages: Michell ISO, Trichord Dino+, Aqvox Phono 2Ci, DIY, DIY
Preamps: two Michell Orca, Michell Argo/Hera, DIY thing in LFD LS0 box
Power: Michell Alecto Stereo MkII, LFD PA0, Hawk A-18 (DIY class A)
Integrated: Lyngdorf TDA2170, Cyrus One, TEAC AH-01
AV receiver: Marantz 1603
Headphone amps: TEAC HA-501, DIY
Recorders: Tascam DVRA-1000, two Nakamichi CR2, Nakamichi 480
Speakers: ProAc D40R, rebuilt long-legged Quad ESL57, Quad ESL63 on stands, KEF Q Compact, Tannoy DC6T, 2 pairs Tannoy DC4, Rogers LS1, Fostex PM0.4, Quad L-ite, SONOS Play 1
Headphones: two Sony MDR-MA900, AKG K-400
All cables DIY, based on satellite coax, microphone cable, LAPP, ...