Hi all, I have a pair of 8" drivers that are from a RC7 - K-1083-SV that I want to use in a large folded horn subwoofer. At 98 db sensitivity they should rock but not sure if they are made for long excursion. Anyone have the T/S specs for them? many thanks. Todd ps. tech support said it is proprietary and cant give them out. Sub horn length is near 20'.