Cool! Glad you liked them. PLease tell us your experiences once you have built the enclosure. Sometimes, an optimal enclosure may lead to a lower bass response, but at the expense of more IM distortion, in which case a sub optimal box may become optimal I have only heard these in the PAWO horns, and in those they are good enough for pop music, in the right room and right placement of course. I also think these work a lot better with PP amps, for some reason! like a simple el84 pp, driven by the 12a*7. Do tell us once you build! -akhilesh