If you look at the picture in the link that you provided of the Imperial 7s, you will see that they have gray colored cones. That article is written by Patrick Hart who worked on speakers at Marantz. Surely he wouldn't use a picture of Imperial 7s with incorrect woofers.This will help all of you with regard to the imperial series. It's a great article and is the reason why I wanted a coveted set of 9's. I drove from St. Paul Minnesota all the way to a suburb of Flint Michigan to get them and am glad I did.They were the upper range model with the separate, wooden enclosure for the midrange speakers. I followed through and triamped them as he designed them to be--truly spectacular in the sound stage and the ease with which they fill a room with smooth highs and mids and thunderous, but tight base. The solid hardwood doors on the second floor at the other end of the house rattle and shale and the toilet lids audibly bounce.
They can be heard a block a way at half volume.
https://www.audioholics.com/loudspeaker-design/loudspeakers-when-is-good-enough-enough-part-1
I know who wrote the article. I read it more than ten years ago. i went to michigan for mine 11 years ago after reading it and hunting for a pair for more than a year. look at the pic--the speaker is damaged, unlike the 6's pic.
first of all, he has 6's, not 7's. Second, look close and he has blue tweets, not grey. Lastly, his woofers are decidedly not gray. look closely at his woofers, to me they appear to have rubber surrounds and are not grey but more black--they certainly don't look like yours. Also, being 59 these days and having a high end store in my neighborhood growing up, I never saw any imperials with gray speakers. Given the times, they were likely replaced after being blown or kicked out during a party. Or they may be early issue? My 9's are all blue--
Same speakers.
Point taken. My 6s and 9s have blue woofers also. I thought the 6s woofers had doped cloth surrounds, not rubber? Mine are. My 9s woofers are foam
I posted several examples of gray 10" Imperial 6 woofers. Notice the similarities to the blue cone version. Stamped basket, square-ish shaped magnet, the dust cover looks identical. Who knows. Maybe they were warranty replacements. IDK.
Um, maybe make sure they work? Even if they don't, Parts Express sells a drop in replacement that looks just like the original ones. I don't know how they sound. You could probably find a used pair on eBay. That tweeter was used in more than several different models and by different speaker manufactures back in the day so used ones shouldn't be that hard to find.
The original drivers were made by CTS.
You might find this interesting.
Huh? In the article that you linked:They don't look right to me. I'd have to pull mine and I may do it tomorrow to check, but I'd remember that funky magnet design.
They never issued the imperial series with cloth covers as others have asserted here in this thread--all were foam. Here is, what I consider, the definitive database on Marantz gear. http://www.classic-audio.com/marantz/imp6g.html
Huh? In the article that you linked:
"Marantz Imperial 6 speakers The Marantz Imperial 6 was the first speaker Dawson had designed after Bart Locanthi had completed the lab/listening room set-up along with teaching his speaker design methodology to Dawson. We speaker novices would listen to the Imperial 6 all day long in between setting up other tests. It was a paper-cone 10" two-way with a phenolic ring (edge) cone tweeter. The woofer had a doped cloth surround and all cabinet parts where of ¾" veneered particleboard. In the lab the Imperial 6 measured ± 1.5 dB, 60Hz to 17,000Hz. It had a real walnut cabinet and retailed for $129.00 each. Guess what? It didn't sell worth beans., "
And next to that quote, you'll find the picture that you used.
Seller said the woofers have a tight weave cloth.
The cones are supposed to be paper. Mine are. the originals are. If these are not, then they are not original. it may be the original driver, but they re-coned it improperly if it is. Be patient, Grasshopper, a real, fully original set will show up eventually. I wouldn't waste my time hunting for 7's. Maybe 6's. but the money is on 8's (mini 9's) and 9's. expect to toss the tweets any way--the man who designed them recommends it.
Because I walked past this shop every day from 1971 through 1977. It was across the street from Macalester college on Snelling and grand avenue. I never saw an Imperial series speaker without blue paper cones. His examples up above of what he may buy have blue tweeters. I doubt they would have sent out speakers with blue tweeters and grey woofers.I meant the surrounds on the woofers have a tight weave cloth. I’ll ask if the cones are paper. So there are no such evidence of gray woofers for the imperial 6?
Also check out these old listings on eBay. From the pictures it look just like the Imperial 6 that I can buy and has the same color too.
https://m.ebay.com/itm/Marantz-Impe...nd-Packaging-/192434089363?_mwBanner=1&_rdt=1
https://m.ebay.com/itm/-/192100800230?_trksid=p2349624.m2548.l10137&nordt=true&rt=nc
https://m.ebay.com/itm/-/263516370155?_trksid=p2349624.m2548.l10137&nordt=true&rt=nc