There was a used Thunderbolt 3 for sale on the Audiogon site a few months ago, but I believe it was sold. I'd suggest you place a wanted ad on the site and see what happens. I had wanted to find one, but got a JL sub after months of waiting with none showing up on Audiogon. The JL works fine with my Nolas, so I didn't pursue the Thunderbolt when it appeared. I'd suggest you consider that or a REL subwoofer if you can't find a Thunderbolt. Good luck.
Wanted: Alon Thunderbolt subwoofer
I currently own the Alon I speaker system and looking for a bass boost to compliment them. The Thunderbolt was highly recommended to me, but apparently out of production for several years. Any leads or info on how to track one down would be gratefully appreciated! Many thanks in advance...
David
David