Garys cones

Hi all well I now have the MDLs fitted and although I said they sounded awesome with those polarised 2500 caps in there, well they did compared to how they were before any work was carried out. But now.....wow, they knock spots off my 3a’s. they are now so much more punchy and so accurate and precise....brilliant! I definitely will need to recap the 3a’s now. Which is not going to be so easy, as the 3a’s crossover is a lot more messy in the way it is constructed. Thanks all for the help.

I have ordered 4 x 1000uf & 2 x 500uf MDLs from Madisound, they will be here in about a week or so.

Looks like I will have to import from Madisound. I can’t find any NPs in the UK of any combination to make up the 2500uf. I must say they sound awesome, but I presume they are at risk of blowing up?

I understand what you are saying. why does the original cap have a positive sign on one terminal if it is non polarised?

This is what came out factory fitted

They were purchased from Ebay item 173044708809

Hi no, they are polarised and a fare bit smaller than the original Callins electrolytics

Hi all So, after ordering a couple of 2500 Spragues from across the pond and a full set of Mundorf Ecaps from HiFiCollective, the speakers are singing probably better than I have ever heard them. Very impressed. I am now thinking my AR3a improved would benefit from new caps. thanks for all the help guys

Hi good to know about the Sprague’s as I mentioned earlier, these speakers have become ‘ un-listenable’ over the last 6 months. No depth or soundstage and no power to them even though the drive units are working ok, swapped them over for my 3a’s and the system comes back to life.

I have found some new old stock Sprague Compulytic 2500uf 100V in the USA. Anyone know if these are suitable and what is the situation with using unused but old stock electrolytics?

Hi just Put my head in the cabinet with a torch and the big 2500 cap is a Callins ! What is the opinion on that ?

Thanks for the replies and help. Madison will do MDL caps to make up the 2500uf value. Can get enough to do both speakers with shipping for £100 not sure what the import duties will be. I think I will wait for Falcon to come back to me with exactly what I need for the rest of them. Get the installed and see what they sound like and go from there.

Hi i remember reading that quite some time ago, don’t remember much of the detail and haven’t found the thread since. I don’t have a capacitance meter, thinking I should get one. I would have thought after the best part of 47 years, all the caps would be dried up etc. I know with good and tested drive units these sound awful, no depth, no bass and completely dull and this has happened slowly over the last six months.

Many thanks for the replies....that's fast! I have been on the Falcon website and spoken to them. they can supply 4 of the 5 caps in each speaker. There is a massive ally can electrolytic 2500uf 63v in there that Falcon can't supply, they don't do anything like it. any ideas of a way around this or a supplier of one? I found a Kendeil cap on Ebay but it is 350volt. Gary

Hi all I am new to this forum but a keen owner of AR10pi and AR3a improved. I am strugling here in the UK to get hold of suitable audio grade caps for the 10pi. In the first few photos on this thread of the 915 crossover there are some black axial caps with red ends and yellow writing. Can anyone tell me what type of caps they are and possibly what make? Also can anyone recommend a cap supplier in the uk any help is much appreciated.