Hi Innocent Bystander,I certainly hope you are correct, usually I’m very carful when making any connections trying to avoid any issues but these things can happen.
This may be purely coincidental ,that’s what I would like to hope. The new tweeters should arrive sometime early in the new year, it will be interesting to hear the difference.
I tend to be pessimistic in these situations always fearing the worst, lets hope it’s a simple fix, fingers crossed, many thanks for your reply.
NDX 2 plus Supernait 3: +2
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Before spending more money on parts/new equipment, I’d borrow your son’s XS2 again and put it into the system. At least eliminate the 202/200 first as the source of your problem.
Hi sktn77a,totally understand the reasoning behind your thinking but I have decided to correct the issue with the damaged tweeter first before taking any other action. The lack of another source doesn’t help so I think my son is going to bring round his turntable so we have another option to try and one that he knows will provide a flawless feed or at least one he is totally used to.
I will thoroughly check over the cross-overs and internal wiring just to be on the safe side. It’s early days there are lots to go at before I start throwing money around, I just need to start with the basics. Many thanks for your input much appreciated as have all the other comments made.
I will update the thread as things hopefully more forward.
Quick update to my situation at the moment…new tweeters arrived from PMC but before going any further I decided to remove the cross overs to have a closer look and double check for any further damage and this is what I discovered!!
Not good news!..this is what it should look like…
As you can see by the two images there is some serious damage to the cross over on the left channel, if you look closely at the image it looks like the capacitor below the three burnt/cracked resistors has split open which is definitely not good news.
So as you can guess there was no point going any further with fitting the new tweeter.
I contacted PMC ,supplying a series of photo’s showing the issue, they were very quick to respond, suggested I removed both of the cross overs, wrap them up and return them for further inspection/repair.
They have arrived at PMC just need to wait for an update from their findings, thankfully PMC say it is no issue getting them checked and repaired but my main concern now is what has caused the problem, do I have any further damage to the speakers (which PMC indicated that they can hopefully tell from the cross overs) maybe other units damaged, who knows?
Fingers crossed they will return and everything will be fine but I worry that this is not the end of the story. What seems really strange is how little the damage had affected the sound, only seeming to take out the top end, so I’m hopeful that the damage is confined to just the tweeter part of the cross over!..I live in hope?
The last thing that is bothering me is how long has it been faulty? and did it fail when hooked up to the Bryston or when we changed over to the Naim amp. Hopefully this will all become clearer when I hear back from PMC.
I really hope this ends well…not of to the best start. Indeed!! 
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Wow, good that you checked! Best of luck and keep us informed how it’s going please
As you’ll know these PMCs come with a 20 or is it 25 year warranty. So, assuming no over driving of them in a previous life, the fix should be covered by warranty.
I take it the cross overs were easy to remove and inspect? I too have a pair of 20.26s. And whilst I’ve had them from new, I have on occasions driven them hard. Albeit with a powerfull amp that is unlikely to clip ( more of any issue for the drivers, clipping).
Unless it’s caused by an external influence
Exactly. But intresting that only one is toast?
Yes, the whole story is very interesting - unfortunately for Silverback. (Reminds me of the apocryphal Chinese curse: May you live in interesting times)
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What a sorry sight that is, hope you get the crossovers back soon. Sounds like super service from PMC! Hope they can suggest a likely cause.
Hi Thegreatroberto, unfortunately I’m not the original owner but PMC may be sympathetic and repair them for a reasonable price?
I have never really understood why certain manufacturers do not allow their warranties to be transferable, surely it helps with residual values of their products which must be good for them and any customers!
Yes, the cross overs are very easy to remove, simple undue the ring of cap head bolts on the back panel then disconnect the internal wiring and they are out, brilliant idea.
It would completely devalue buying new
Hi gthack ,the service so far from PMC has been excellent, emails are answered very promptly and so far things have gone very smoothly just hope this continues. 
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I shall schedule in an inspection of mine!
Hi Suedkiez, can you explain why it would completely devalue buying new, other manufacturers allow warranties to be transferred, not sure I understand your thinking.
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It takes just a few minutes to remove the bolts, what I have found interesting is there are no seals around the panel or indeed on the tweeter units themselves, normally to keep things air tight a foam type gasket is usually used, perhaps the surface finish of the cabinet’s are of such a good level of finish there is not need for a gasket of any kind, all I can say is the workmanship on the cabinets and components looks first rate.
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Because if I get 20 years warranty on second hand items, it removes an important incentive for spending more for new items.
It most likely also multiplies what the manufacturer has to spend on warranty repairs. If the extended warranty is not transferable, the warranty period effectively ends when the item is sold on, which will very often be long before the full period.
I don’t know any manufacturer who offers extended warranties for second hand items (as opposed to legally required warranties, which are transferable by law in many jurisdictions). Who are they?
Hi Suedkiez, Bryston are one that I can think of but I’m sure there are more, as long as you have the original purchase receipt.
How many keep a pair of speakers for twenty years, guessing they maybe a few, so what is the point giving a twenty year warranty if you cannot transfer it, surely it builds confidence in the product which must be a good thing for the manufacturer, perhaps warranties are a personnel thing.
Bryston indeed does it for electronics but limits the speaker warranty to original buyers as well,
Bryston analog audio products and loud speakers are warranted to be free from manufacturing defects for twenty (20) years from the original date of manufacture. The warranty includes parts and labour. Speaker warranty is limited to the first time buyer and is non-transferable.
The point would be that if I keep them I do have the warranty. And like I said, if it’s not transferable it limits the effective length of the warranty period for the manufacturer in many cases, without impacting the original customer
It’s a two edged sword for sure. It builds confidence for second-hand buyers but removes incentive from buying new. It extends all warranties to the maximum time, which is a cost factor that must be reflected in sales prices of new equipment.
Whether it makes sense for a certain manufacturer will depend on many factors, and in any case it’s most likely only doable for units that by their nature usually cannot fail within the warranty period.