Not attempting to bring this thread back to life, but I found this interesting thread... Volleyguy will get off reading this :-) Still not sure if you ever changed out those woofer inductors this might point you in the right direction. By the way I have used the duelund VSF's now on my horns with the Jantzen superiors Bypassed with the Vishay MKP's in the woofers backed by the 12 gauge copper foil Alpha core inductors, identical approach to Tony Gee.. My crossovers now cost more than most completed speakers, but worth it.. See link
http://forum.audiogon.com/cgi-bin/fr.pl?rspkr&1164387495&openflup&19&4
http://forum.audiogon.com/cgi-bin/fr.pl?rspkr&1164387495&openflup&19&4