I use the teflon version and have been extremely pleased with the sound but started with the unit you are referring to; the standard 15amp version. The standard 15amp version doesn't limit current and the sound is very close to the teflon version. Having said this, I wish had know about the Synergistic Research Tesla Powercell. I would try this one too. I have heard it at a friend's who I let demo my unit and the Tesla Power Cell sounded better in his VAC system. Check the reviews; very reasonably priced too! I hope this doesn't confuse your decision.
