What do you use to burn in cables???

Yes; however, they are usually quite expensive. I would recommend switching between playing music and FM interstation noise.

http://www.audioexcellenceaz.com/audiodharmacablecooker.htm supposed to be the best available.

I use a G&D MOBIE to burn in interconnects and digital cables and find it does a great job, as do my customers. Unfortunately I don't think they are available any more, but they do turn up on the used market once in a while. There are few alternatives.

Brian Walsh