Wow, I'm shocked. I just purchased a set of tubes from him a little over a month ago.
My condolences to Dan's family and his business accociate Glenn.
I purchased my first tube amplifier from him in 1996 and have done regular business with him ever since. We always got along great even if we disagreed on the merits of certain products.
I spent a lot of Saturday afternoons at the store discussing audio and F1 racing, munching pizza.
I will miss Dan for sure.