KEF Concord Classic Speakers Repair, Blown Tweeter. T15 & B139 driver Vintage HiFi Audio

A look at a pair of KEF Concord Classic's that I bought recently and not in great shape
With disintergrating foam and blown tweeter can I get these back up and running, part 1
Inside the box is
KEF T15 Tweeter
KEF B139 Driver
NOW fully working demo here • Video

[@matthewtaylor7355]

They will sound better than many modern speakers... Simple crossover.. Easy/cheap t upgrade

[@MichaelYates]

Looking forward to hearing them once a replacement tweeter turns up

[@matthewtaylor7355]

@@MichaelYates U may try a single cap rolling the tweeter off and hardwiring cable direct to bass unit ignoring the bass crossover parts. Russ Andrews sells a similar simplified crossover kit for Spendor BC1S.. He says it improves them greatly... On urs it is already simple but may still b worthwhile

[@matthewtaylor7355]

Also Jimmy Hughes did an article on speaker damping in mid 80s in HiFi Choice..He concluded that damping can dull speakers etc... May B worth experimenting

[@MichaelYates]

Thanks Matthew I headed over to Russ Andrews site and looked at he's Spendor BC1's crossover kit and also what he says in he's Type B approach, I might give this a go once I have these going again. The site was a bit of an eye opener especially the HiFi mains fuses as I never knew these even existed and at 70 quid each.

[@MichaelYates]

Thanks again, I will look Jimmy up as well

[@jimsregaturntableshifijukebox]

A very interesting speaker Michael, thanks for sharing. Jim🏴󠁧󠁢󠁳󠁣󠁴󠁿🙂

[@MichaelYates]

Thanks Jim, looking forward to hearing these. Regards Michael

[@mikesaunders4694]

Love your videos Michael….reminds me of me…..messing about with things and “experimenting”….curious to see what these sound like.

[@MichaelYates]

Thanks Mike, think I am getting a bit lazy in my old age as years ago I would be trying a lot of other things, but then again more often than not they never worked out lol

[@richardcrook2112]

Nice one, I've always wondered about those KEF Concord speakers, be sure to let us know what they sound like once they're working!

[@MichaelYates]

Will do Richard

[@hoobsgroove]

You can buy new coils with diaphragm on their own, if your patient you can recoil it manually on a former the size needed. Try celestion but first try Kef might have a coil with diaphragm or no of where you can purchase it, you'll need to know the length and diameter of wire and diameter, kef should be able to have this information for you or a suitable replacement.

[@MichaelYates]

I did not realise they still did the coils with diaphrams for these , I see them for other KEF's but not these. I dont think I would have the skill to re-coil and managed to get a replacement for £20 inc postage, just waiting for it to turn up

[@hoobsgroove]

@@MichaelYates you got a replacement bought from Kef? No I was talking generically buying replacements, there is third party companies like celestion that could supply them where did you get yours from? Ideally it's best to buy two as a matching pair, as long as it comes in spec you should be all right

[@MichaelYates]

@@hoobsgroove I ended up just buying some three 2nd hand ones, as the T15 that I had that was working did not sound right to me and thought I would replace that as well , they have all arrived today so I might get a chance tomorrow to give them a go.

[@shrimpu]

Is there a Part 2? Can't find it... Thanks

[@MichaelYates]

There will be very soon

[@peterskyes1267]

Michael if you get these going and want to sell please let me know

[@matthewtaylor7355]

When working he won't want to turn em off

[@peterskyes1267]

@@matthewtaylor7355 I have not heard these but been told these sound a lot better with a Valve Amplifier and I have got a nice Leak 50 Valve Amplifier that I have been told these will sound nice on by a friend. Do you know if this is the case at all yourself ? , have you heard these at all ?

[@MichaelYates]

I am hoping these will be good enough to keep, but who knows. I am still awaiting a replacement tweeter to find out

[@johnbravo7542]

wow! your that cheap you put vegetable oil on the veneer

[@MichaelYates]

Well John a long story, wife trying to get involved and I always seem to say no lol, I let her have her own way this time. Let her loose on the internet and all of a sudden a bottle of veg oil popped out the cupboard.