please keep me informed because they are cheap here and also i will be building another 4 pi in febuary, i am very impressed with the 4 pi with delta 15, the sound loud enough for my 1.5 watts Dc SE amp, they sound more than loud on my unison research 25 watts PP amp.many thank for the design and kind assistance and good bless you
merry xmas to you and your family.
zeno gabriel