I saw John Hardy at the AES show in New York today. Wait a few days, and try again. He runs a small operation, when you call, he's the guy who answers the phone. So, give him a few days to get back to Illinois, or better still, go meet him at his booth at AES.
I saw him there too. What a COOL guy he is. He talked topologies with me for a half hour. I got to see some unpotted 990's and of course his very artfully built M1/Jensen designs. His power supply looks awesome.
At any rate, the John Hardy Co. Is run by John Hardy himself. AES ends Monday, so you can probably expect a call back mid week.