A pair of Duntech Sovereign's turned up on local Craigslist. I hadn't seen or heard about John Dunlavy in years, so I thought I would do some research. I worked with he and Jim Fosgate on the Fosgate Audionics 5.1 Systems (later Citation). Amazing acoustician, scientist (antenna's), I learned alot from him.
John Dunlavy may not be with us much longer.
Details @A.A.(general section).