Audio Technica: ATH-M50, M40, AD700X
Blue Microphones: Mo-Fi
PDP: Afterglow AG9
SOL Republic: V10-HD
V-MODA: Crossfade m-100
Five or so mods that I've built over the years
Mad Catz: F.R.E.Q. 4D
Alpine: Over Ear
SkullCandy: Skull Crushers, Crushers
Headphone Amp Inventory:
I can't hear any differences with cables so I'm not into that. If you can, more power to you.
Hifime USB isolator
Other Audio Equipment:
Bruel and Kjaer Head and Torso Simulator (measure acoustics)
Bruel and Kjaer Probe Microphone 4182 (in-vivo measurements of headphone acoustics)
ADXL 335 Triaxial Accelerometers (measure headphone movements)
Aurora 305B (Dynamic Force Source with position tracking, 10 N over 10 mm, with 1 um precision)
National Instruments USB-3536 DAQ card (get the data into the computer)
Don't get me started. Variety of projects, including headphones that use electricity to make you fall down.
Songs that thump. Blues. Everything really. If it sounds good it is good.