I'm clearing out some Sennheisers and fancy cables. Too many headphones and moving away from on-ear.
1) Sennheiser HD25 with Headphile Black Crystal cables (3.5mm, originally $209 if memory serves) both in very good condition-- $225 shipped OBO
2) Sennhesier HD25, cable and pads in rough shape, but cans are functional. $75 shipped OBO
3) Silver Sennheiser Amperior in Sennheiser bag with microphone cable. Cans in very good shape, bag in well-used condition. Asking $150 shipped OBO
4) Moon Audio Silver Dragon cable for HD25, and other compatible headphones (3.5mm). Very good condition. Asking $125 shipped OBO.