Hi Catluck, I can't say of course but if you've made it this long with your listening habbits, you will probably be ok in the future. That said, although the first blowout was WAY TOO LOUD and yesterday def was loud, it wasn't LOUD IMO. The volume knob was at 4.5 and I would guess the DBs were around 85-90 w/ peaks of 95. When the first blowout happened, I blamed myself, but not this one as I've listened that loud many times over the past year w/ no issues. I'm confident my amp isn't taxed and not clipping (not impossible but very doubtful) as M3s as I think 93 db/1 watt and I don't think I was much over that w/ about 50 watts per channel for my amp.
There have been at least 2, maybe 3 other reports of this happening (that I know of), one of them contacted me and we traded a few emails. About a month ago I traded emails with a "pro" reviewer and he owned M3s but sold them becuase he thought the tweeter is asked to do too much w/ a 576 hz crossover - or at least that is one of the reasons.
Since I set up my m3s and got them to disappear I have been completely (well almost anyway) satisfied with these speakers and intended to keep them for a long time but not I'm questioning again. With the Peerless tweeters NLA and Clayton's health right now (again I have full sympathy there and his health and taking care of himself is more important than me having tweeters - he is truly one of the nicest and best seller/manufactuer/people I have ever dealt with) along with this being the 2nd time, I'm thinking about moving on again.
For now, I will pull my trusty old Mirage M460s out of the garage and maybe buy a sub to get me through for a while. I could have the new tweeter at my doorstep next week or I may be waiting months. I have no idea - but will be ok with the Mirages and my headphones (where I spend more time anyway due to low WAF for "noise").
Edit, just saw Ron's post. Thanks Ron. I may just do that (contact Canton) although Clayton has said that Peerless "tunes" the tweeters for the Sapphires so....that may be a very good bandaid but ultimately I will need M3 tuned Peerless tweeters or maybe a M4 swap. When Catluck posted his post on Sept 10 it stuck with me and I remembered it not too long after I lost that tweeter yesterday.