I built a pair of hybrids for Chuck. We had a couple of goals in mind when we started the project. One was improving the mid range performance by using Altec 511-b horns and 902 drivers. Second was to improve high end performance with Beyma CP-25 tweeters. Third to improve the bass 1'' MDF was used in the bass horn like the new Lascala IIs. Also, we wanted to address the toe in problem caused by limited corner space in Chuck's music room. I've got some construction pics coming up next.