Headphone Collection

I've gone through a lot of headphones, kept some, traded some. I cycle through them to find what I'm looking for. I've even returned to some headphones I've let go simply to revisit them. It's not about finding the right sound necessarily for me, it's often simply the excitement of trying a new one and fun of going through different pieces of technological art essentially. Included is some of the gear that I use to power various pieces of equipment as I consider the circuit one being.