Biamp was the next company for Conrad Sundholm after he sold the original Sunn company in 1971. I think it was founded in 1976; there may have been a 5 year non-compete in place but I don't know about that for sure.
It’s still in existence (
Biamp Professional Audio Systems), and I believe still manufactures in Oregon, but for the last decade or so it’s specialized in commercial grade high tech AV control devices/amplifiers rather than consumer based sound reinforcement gear.
Somewhat similar to what California built Stewart Audio did a few years ago, I would imagine in response to the price competition from major SR amp manufacturers going to Asia with their production. But, like my “non-compete” theory
also purely speculation on my part.