Proac Ribbon Tweeters Damaged


Hi all - this is my first submission, so looking forward to your responses...

I own 2.5 year old Proac D48 R speakers, powered by a Parasound Halo A21 amp (about 8 years old). When listening the other day I thought the speakers sounded dull, muddy. It appears both of my ribbon tweeters have gone out and I am at a loss to understand why.  The amp is certainly not under powered to cause clipping damage and I never play my unit abnormally loud  - maybe 1/4 to 1/3 total volume.

As you can imagine, my repair/driver replacement will not be covered by warranty as this is not considered a manufacturer defect. I am told the tweeters run $399 per.

Worst thing I can do is have these repaired and then have it happen again. HELP!
gnoworyta

Showing 9 responses by jetter

I've never owned ribbon tweeters, is there a chance they can be repaired by Millersound?
I was only talking about shipping the tweeters to Millersound, not the whole speaker. Your lucky your dealer has the expertise to fix the tweeters.

By the way, I had four 7" scanspeak woofers, the two in each speaker, just stop working all at the same time.  Fortunately, the speakers were under warranty.  But before they would replace them the dealer wanted me to send in the nonworking speakers to figure out what had happened.  They could not.
gnoworyta, no matter how this sounds I am just trying to be helpful. I realize you are trying to find the cause of your problem, not repair of the tweeter. I was just looking online and it seems the most common problem with ribbon tweeters is that the tweeter material, which appears made of an aluminum foil type material, rips. From what I read, if your problem is a ripped ribbon, it appears to be an easy fix for a professional, assuming it is not an exotic material.  Is it possible to visually inspect if it is ripped?  Also, if you can remove it from the speaker maybe you can isolate if it works ruling out a crossover issue.  I hope some of the guru's here can help out on how to test a ribbon speaker detached from the speaker cabinet.

Here is a YT of a RAAL being repaired. https://www.youtube.com/watch?v=bvylZF9eJOA

It may be your dealer knows that something else is burned out within your tweeter making it totally unrepairable. Like maybe a ripped ribbon tweeter still makes some noise, or whatever, and your doesn’t. But if your saying its $800 bucks for a new pair I would definitely investigate further. Millersound is first rate, give them a call. When my woofers needed repair he basically said he can repair most anything on the woofer regardless of problem.
gnoworyta,
Please be sure to post what the cause of the blown tweeters is after the dealer comes out.  I have a similar amp.
Well, that doesn’t help much as you originally posted to find out what was wrong so it doesn’t happen again. As I mentioned earlier, I had (still have) speakers with two scanspeak 7" woofers in each speaker. Same thing happened, turned it on one day and all 4 woofers dead. Sent them to the dealer for his inspection and he had the manufacturer replace them under warranty. Nothing like that happened again using same amps and speakers. I am sure you have it under control and sorry to sound like a broken record, but before spending the big bucks on completely replacing the tweeters if that is what your are thinking of doing, I would telephone Millersound and see if they can help. 
I also was hoping that your dealer would come through for you.  Even if he was to just offer the tweets at dealer cost.  

I have read great things about the PS Audio Stellar amps.
gnoworyta, thanks for the update and honestly wish that the dealer or Proac would have stepped up and helped out.

Totally understandable your hesitancy to use your current amplifier with your new replacement tweeters.

Random thoughts: I think if they were my speakers I would consider buying a pair of the tweeters PBN suggests above for about $250 total and running my speakers with those for awhile as a test.  I would want to know if the tweeters lead wires are soldered or clip on.  I would also want to make sure I could return the tweeters to Parts Express if they did not fit perfectly.
Hi gnoworyta, you can go to the Aurum Cantus website and see every spec you could want for the Aurum Cantus tweeter pnb recommended.  Unfortunately there is no information online for the G2SE that you mentioned the Proac uses..  

Did you happen to notice who manufactured the G2SE?  If it was manufactured by Aurum Cantus you could call them and ask if they are compatible.

To be honest, if they were my speakers and I could not find out the information otherwise, I would ask the dealer or call Proac directly, its not like you owe them anything at this time.  Buying a new amplifier is a big deal, especially as a number of persons aren't so sure that it was the problem.  It would be nice for you to be able to run the speakers in the meantime with a less expensive potential outlay until you have it all sorted out.