These look interesting if not a little quirky but they have been reviewed by Michael Fremer and appear to do something with the aural presentation of your cartridge....hey man are these really able to achieve something worthwhile. I would love to try one!
http://www.synergisticresearch.com/p...all-50-states/
http://www.stereophile.com/content/s...Ou0h8kv9MdM.97