Hello Kevin,
I am glad to hear that your patience has rewarded you, with your Tenore purchase. I am sorry to answer your question so late, as I just saw your message today.
I am also sorry to hear of the Focal Audio/JMLab tweeter surrounds have disintegrated. I stocked as many replacement tweeters and tweeter parts as possible, and thru the years of helping customers I have sold all of these Focal Audio tweeters and parts.
Some of my recent customers have found replacement surrounds, coils, etc. on hifi shark website, which searches Audigon/eBay/US Audio Mart/etc.
I would recommend you search "Focal TC90" on hifi shark's website--as there are new old stock and used Focal TC90 compatible models for sale now (July 2021).
You can replace your T90ti with any of these models: Focal T90ti/TC90td/TC90tdx/TC90tdxt/TC90td5/TC90tdxb (this model may be too deep because of the bucking magnets, so you may have to modify the Tenore tweeter enclosure).
You can even replace the ti with the k (Kevlar) or any other Focal 90 series tweeters...they will all sound similar, and definitely better than non-working tweeters.
Since the Tenore are bi-wired there are ways of changing the sound of the tweeters, if you cannot find the original T90ti Focal replacement tweeters.
Of course, replace both tweeters at the same time with the same model, when possible.
I hope this helps and let me know if you need further help.
Sincerely,
Bryan Ganz
I am glad to hear that your patience has rewarded you, with your Tenore purchase. I am sorry to answer your question so late, as I just saw your message today.
I am also sorry to hear of the Focal Audio/JMLab tweeter surrounds have disintegrated. I stocked as many replacement tweeters and tweeter parts as possible, and thru the years of helping customers I have sold all of these Focal Audio tweeters and parts.
Some of my recent customers have found replacement surrounds, coils, etc. on hifi shark website, which searches Audigon/eBay/US Audio Mart/etc.
I would recommend you search "Focal TC90" on hifi shark's website--as there are new old stock and used Focal TC90 compatible models for sale now (July 2021).
You can replace your T90ti with any of these models: Focal T90ti/TC90td/TC90tdx/TC90tdxt/TC90td5/TC90tdxb (this model may be too deep because of the bucking magnets, so you may have to modify the Tenore tweeter enclosure).
You can even replace the ti with the k (Kevlar) or any other Focal 90 series tweeters...they will all sound similar, and definitely better than non-working tweeters.
Since the Tenore are bi-wired there are ways of changing the sound of the tweeters, if you cannot find the original T90ti Focal replacement tweeters.
Of course, replace both tweeters at the same time with the same model, when possible.
I hope this helps and let me know if you need further help.
Sincerely,
Bryan Ganz