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Please Post your Infinity speakers

It looks like only the carbon Fiber reinforcement is cracked. Not sure if those can be disassembled like the polydomes so you could inspect the back side to see if the polydome is still intact. If so, maybe it can Be gently pushed back out and some resin used to reinforce the cracks.
Unfortunately, no, the polygraphs are not easily disassembled. The dome has a pleated surround which is glued directly to the frame with a very durable adhesive or epoxy. Removing the trim ring only exposes the surround, it doesn't give you any additional access.
 
A very expensive mistake on my part. One pair on eBay and there asking 220 for ea polygraph. This is what I see now and no others! The polydomes are more frequent and less money. No replacement parts available, must buy the whole thing.
 
If the current polygraphs are playing OK, just set up an alert on eBay until someone posts a cheaper one. I doubt those will sell at that price. Unlike polydomes that deteriorate over time, the polygraphs are pretty reliable; the only people who need replacements are those who have damaged theirs.
 
I feel very lucky! My friend found a pair of Infinitesimal 0.3 in a dumpster at work. He gave them to me and I fired them up to discover.....both emits were not working. A local repair shop hooked me up and I now have them paired with a Sunfire sub. Wonderful, extended, transparent sound. I am now a big Infinity fan.
 
A very expensive mistake on my part. One pair on eBay and there asking 220 for ea polygraph. This is what I see now and no others! The polydomes are more frequent and less money. No replacement parts available, must buy the whole thing.

daaaamn man, what happens more so how? This is the one from Steve correct. Like my k9 , damn and those were pristine. We padded mine up totally, thank god it didn’t crush entirely !
 
daaaamn man, what happens more so how? This is the one from Steve correct. Like my k9 , damn and those were pristine. We padded mine up totally, thank god it didn’t crush entirely !
Yep the niners were gone when I picked up the 8 ers’ but most of the wall of infinity was still up and what a site. I did not ask to peep at the Beta’s, was in a hurry hence the crushed graph, I was running 3 hrs later than expected but did stay and listen.
 
Yep the niners were gone when I picked up the 8 ers’ but most of the wall of infinity was still up and what a site. I did not ask to peep at the Beta’s, was in a hurry hence the crushed graph, I was running 3 hrs later than expected but did stay and listen.
I think you should be fine, that lattice is graphite impregnated material (hench the name polygraph)

you should contact Millersound , Those redid the polydome of our speakers as well. And they seem to have the best reputation on classic infinity repairs.
 
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I don’t see these polygraph mentioned on there site. I would be surprised if Bill actually had a method Of manufacturing a new dome to match the existing but why couldn’t he do something like the polydomes. Using just a clear type product, My guess it wouldn’t be the same sound.
 
The plastic used in the polygraph appears to be the same as used on the Polydome mids on the RS3a and RS4a (among others). Fairly stiff to begin with, then add the graphite ribs, making it much stiffer than a Polydome K. At the time the Kappa series was sold, Infinity also offered an RSDS (automotive version; Reference Standard Driver's Series, IIRC) polygraph with an IMG dome on a similar frame. It's very rare; I've never seen one in person.
 
We’re All of these great speakers discontinued when Arnie left as president of the company?
Not quite. Infinity soldiered on for several more years with some high-end models (like the Epsilon, one of the last). But by 2000 or thereabouts, they were all gone.
 
The plastic used in the polygraph appears to be the same as used on the Polydome mids on the RS3a and RS4a (among others). Fairly stiff to begin with, then add the graphite ribs, making it much stiffer than a Polydome K. At the time the Kappa series was sold, Infinity also offered an RSDS (automotive version; Reference Standard Driver's Series, IIRC) polygraph with an IMG dome on a similar frame. It's very rare; I've never seen one in person.
I have, I had four of them.

Unfortunately, I didn't have the smarts to pull and keep them when I sold that POS saturn.
 
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