This is a set of Mu MC step up transformers from Bent Audio they have WBT cryogenically treated RCA as well as the whole using was cryogenically treated. They are in as new conditions not much can go wrong and they have been siting behind audio system since new. These are super clear an every awesome I now have a pre with step up transformer built in so no longer need them.
They are very clear and have awesome dynamics with incredible resolution and inner detail, sound staging is as good as it gets they are easy to use and will work with pretty much any cart. These should sell real quick.