Late summer is what I've heard, but with component sourcing the way it is these days it's up in the air. I don't know what you'd even compare it too, it's reacted differently to every bass I've played through it, I have both SSDI and P15, they both haven't seen power since the day the new one arrived. Not saying it's replaced them, Josh has nicely made this one different enough it's good to have them all, but I can't put the new one down. It's everything I've ever wanted from a tube preamp, and best of all originally new. Maybe one day I'll have the courage to mail it off to you if more don't come around, but don't hold me to that