What is a plasma tweeter?

Years ago there was a massless tweeter called the Blueflame and it was an incredible sounding high-frequency driver. Whatever happened to that tweeter and the Hill Pasmatronic speakers? Have a question you want to ask Paul? I am getting close to publishing my memoir! It’s called 99% True and it is chock full of adventures, debauchery, struggles, heartwarming stories, triumphs and failures, great belly laughs, and a peek inside the high-end audio industry you’ve never known before. I plan a few surprises for early adopters, so go to and add your name to the list of interested readers. There’s an entire gallery of never before seen photos too.