I forgot to mention the configuration plan. Its like Yuchi's big system.A vertical stack with the 4648as laying sideways and the two mids and one horn positioned between the two woofer systems where the Japanese system has two horns.The whole thng goes on a rack of heavy 2x4 or2x6 framing and is covered with finished ply wood to copy the Yuchi system. In otherwords a shameless copy of (or tribute to)the Japanese TAD driver based supersystem using Red Blooded American (JBL)Parts and one Pi crossover..tdc