Until Eminence gets the B12 ready, I'm most fond of the JBL 2245 for subwoofer duty. The 2235 is nice too, and it can be used in a smaller cabinet. The JBL 1500 subwoofer looks like it might be nice, but I'm note sure if you can get them anymore. You might consider the Magnum 18LF as well.As for the Stoetkit, you're on the list and will be able to check it out "up close and personal." It didn't have any trouble driving the Omega 15, which is not the easiest load for a low power tube amp. So I think you can expect it to work well with any of the above mentiond speakers too.