I have 4 of his amps. Tommy had great products and great service/repairs. I would be a Cherry bot.
RIP Tommy Obrien - Cherry Amp
It appears from a thread over on Audio Circle that Tommy Obrien, founder of Digital Amplifier Company - CherryAmp - passed away a few days ago. Not many details are available...below is a link to the Audio Circle thread.
https://www.audiocircle.com/index.php?topic=179605.0
He was one of the brilliant designers who not only made great sounding products but always had time for his customers. He will be missed. Condolences and prayers to his family.