I have the 650's and the HD25. I really can't see using the HD650's 'out and about'. Too much sound leakage and it will probably let a lot of the outside sound in. Than's why I have the HD25's.
As far as shortening the cable, it's pretty simple. There are a few YouTube videos. Just make sure you get the left and right connectors on the right slots. I found a sound file that indicates left and right.
As far as shortening the cable, it's pretty simple. There are a few YouTube videos. Just make sure you get the left and right connectors on the right slots. I found a sound file that indicates left and right.