SB-7000 were hightly forced in Russia some years ago, so its now not a small amount around here. Was dreaming of them then, but never got a chance to listen personally. Nice ones, grats

I decided to tinker with them more. Decided redo the bass cab, midrange cab, and tweeter back cover.

I decided to take lot of the pillow stuffing out in the bass cab and kept layer along the walls. Stuffed bit around the port too. I placed some 9" thick r30 fiberglass on the floor of the cab underneath the port. Looking at design original sb7000 model without the port it used like a loaded cavity so I tried simulating that by plugging the port up and just placing fiberglass on the floor underneath the port section. Don't think these 14" woofers weren't designed for a ported design anyways. Found out these woofers are similar to the jbl le14 14" professional woofers so most likely do better in proper closed design.

I restuffed the midrange cab with some same density fiberglass. These midranges are heavy and use an unusually large size magnet....

The tweeters were kinda pain in the ass. They weren't kidding that they use an unusually powerful magnet for the domes. I took the back plate off and looked inside. Looks interesting,  kinda looks like a planer like design on how the magnet is. It already has fiberglass layer behind the dome in a cavity but I decided it couldn't hurt stuffing bit in the cup/plate.

I know no one cares but since there is very limited information or experience with these I would like to keep people up to date with these. One thing digging around atleast I know won't be hard finding woofers for these if I ever need to replace them. Seems JBL made some odd ball 14" cloth woofers too. Only drivers that will be hard to replace on these are the tweeters if they ever go.

Cool stuff, Rex, thanks. Like I said, gf's dad has a pair and they're just sitting in their garage. I think there was a torn woofer so now I'm tempted to fix them up...nowhere for me to put them, though.

They are worth a fix up. They are good sounding speakers. If end up not liking them you can easily sell them for profit. The tweeters alone can go for avg of 150 a piece if working (last time I checked) or can always find someone to make a trade for something. I don't know. I think these are keepers though for me atleast.

If it's small tear, that can easily be repaired. I would just check the tweeters first cause some reason they were supposedly known to be blown easily or somehow become shifted from the magnet locking the drivers up.

The speakers aren't super large but pretty bulky. They're pretty heavy too at 75lbs each so moving them around can be bit annoying. The handles do help lot though. They can fit in a medium size room easily if don't have much furniture already. My room is considered medium size at 15'x15' even though I find it big and they fit perfectly here.