hello, i have a pair now for more than 25 years and they look news. They are very dependant of the amp you use to feed them. Seems to me that best amp is a tube amp class A . You say you restored them. How? Do you restored the cross-over? i have been wondering if the capacitors where chemicals or plastics without founding the answer. did you upgrade the cables or get off the medium and high potentiometer? Regards