Not irritating my spouse with video game & YouTube noise. Woodchucking. Sealion imitations.
Sennheiser HD518; Sennheiser 555 (taped over the grills in a naive attempt to isolate the sound); Sony MDR7510, Massdrop-Sennheiser H6xx (HD650 clone?).
Headphone Amp Inventory:
Turtle Bay DSS2 (DAC/amp [bought it used as it's discontinued]). Modi Multibit, Magni-3, Loki EQ.
All digital, baby. FLAC, ACC, MP3 (sheesh), CD loaned from the library; rip using Foobar2000 and/or EAC and/or iTunes (meh); Play using VLC, iTunes, Foobar2000. Use a SYS box to switch in multi band radio. A Chromebook feeds my little metal boxes... and causes the fewest headaches. When it works, I use my router's media-player feature... SMB folders.
Canada Computers-era TOSlink & HDMI cables. Amazon Basics. Monoprice. Scrap from my cablevision dealer!
Everything's on (disposable), hardware-store-grade power taps.