Headphone Inventory

Have:
Etymotic ER-4S (balanced) with red filters
HifiMan HE-6 (modded)
HifiMan HE-500 (jerg mods)
HifiMan RE-600
Sennheiser Amperior (silver)

Had:
Sennheiser HD-800 (balanced)
Fostex TH-900 (balanced)
HifiMan HE-6 + BTG Sunset Cable
HifiMan HE-5LE
Beyerdynamic T1 + Black Dragon XLR cable
Audeze LCD-2
Beyerdynamic DT1350
Beyerdynamic MMX300
V-SONIC GR07-BE
...and many more

Headphone Amp Inventory

Have:
DIY First Watt F5
Bottlehead Crack + Speedball (modded)
The Wire BAL-BAL (unity gain)
4x LPUHP (16w monos) balanced for Horns+SuperTweets
DIY First Watt F4 (incoming)
DIY First Watt Aleph J (incoming)
2x Emotiva XPA-5

Had:
Schiit Mjolnir
Beyerdynamic A1
Burson HA-160D
Various LittleDot
Various Woo Audio
Asus STX
Yamaha A-S2000
...and many more

Source Inventory

Have:
Yulong DA8
HifiMan HM-901 (dock incoming)
Music Hall MMF 7.1 with Mojo cart and DIY Hagtech Cornet2 phono pre
Emotiva UMC-1
Oppo BDP-93
DIY Tortuga Audio LDR3x passive preamp
Audio-GD Master-1 preamp

Had:
Oppo BDP-95
Music Hall DA 25.3
Yulong D18
ODAC
Burson HA-160D
Asus STX
Music Streamer
Yamaha CD-S2000
...and many more

Cable Inventory

AudioQuest Diamond USB
AudioQuest King Cobra RCAs
AudioQuest Colorado XLRs
Various DIY silver and copper IC's

Power-Related Components

Monster Power Conditioner
2x Monster Voltage Regulators
Uninterrupted Power Supply
Pangea Power cords
Lab Linear PSU (Rigol DP832)

Other Audio Equipment

Fostex FE206En 8in. Fullrange driver in a back loaded horn enclosure (Madisound BK20)
Fostex T90a Super Tweeters
Analog active crossover (balanced) for the speakers
2x Polk DSW 1000 subwoofers
8x Polk LSI 9's + matching center speaker

Audio-Related Tweaks

DIY Feet stabilizers
Room treatments
Spiked Rack and shelves
TB Isone
REW
JRiver

Music Preferences

Everything!

Gear-Fi

High-end PC building and automation
Arduino tinkering