Try Tri state loudspeakers, I think the owner used to work at Marantz during that era. Tri state is in Aliquippa pa. Don't have the number, sorry
Need Info on Marantz Speakers
Can anybody tell me anything about older Marantz speakers. I've come across a pair of Cabinet speakers that are quite a few years old and have 2 woofers 4 midrange and 2 tweeters. I can't find anything on these speakers or anything remotely like them. If anyone has any info I'd appreciate it.