Hi
I am currently using a pair of Audax TW025M0 tweeters in my World Audio KLS9 two-way floor-standers. I am reasonably sure that one of the tweeters is damaged as it is sounding rather dull compared to the other. Hence I am in need of replacements. I'm attempting but struggling to find any old stock of these or the TW025M1s, but does anyone know of more up to date replacements, preferably that will physically fit into the same aperture.
Many thanks for any help / advice
Jonathan
I am currently using a pair of Audax TW025M0 tweeters in my World Audio KLS9 two-way floor-standers. I am reasonably sure that one of the tweeters is damaged as it is sounding rather dull compared to the other. Hence I am in need of replacements. I'm attempting but struggling to find any old stock of these or the TW025M1s, but does anyone know of more up to date replacements, preferably that will physically fit into the same aperture.
Many thanks for any help / advice
Jonathan
Replacement tweeeters are available here: Audax TW025M0 spares and replacement voice coils from Falcon Acoustics, The Leading Supplier of DIY Hifi Components.
Thanks for the suggestion and its a good idea, aside from the fact that I am using an active cross-over in a bi-amp situation.
I guess it might have been useful to say that...
Jonathan
I guess it might have been useful to say that...
Jonathan
What I'd really like to hear you to say, Jonathan, is that my link to Falcon Acoustics has solved your problem. 😉
Might just be a ferrofluid problem.
It is brown oily stuff and can dry up and clog the voicecoil. Easy enough to clean the old stuff out with a bit of blotting paper and replace:
Sonitus Audio :: Sonitus Audio FF05 PS4.99 IN STOCK (5 Dec 2020)
Otherwise a 100mm 6R 90dB tweeter shouldn't be too hard to replace. I think Monacor make some.
It is brown oily stuff and can dry up and clog the voicecoil. Easy enough to clean the old stuff out with a bit of blotting paper and replace:
Sonitus Audio :: Sonitus Audio FF05 PS4.99 IN STOCK (5 Dec 2020)
Otherwise a 100mm 6R 90dB tweeter shouldn't be too hard to replace. I think Monacor make some.
This firm:
WELCOME TO CAD AUDIO
has them in stock, so I have ordered a new pair. I'll take the old ones apart when the new arrive and post up the results.
Many thanks for all the advice.
Jonathan
WELCOME TO CAD AUDIO
has them in stock, so I have ordered a new pair. I'll take the old ones apart when the new arrive and post up the results.
Many thanks for all the advice.
Jonathan
Thanks for the update, Jonathan!
I have spotted your post in the World Designs Forum and see in Greg's reply that Falcon Acoustics no longer have stock of the replacement tweeters.
Do let us know how you get on with the renovation.
I have spotted your post in the World Designs Forum and see in Greg's reply that Falcon Acoustics no longer have stock of the replacement tweeters.
Do let us know how you get on with the renovation.
If they are Bi-amped...the capacitors could still cause an issue.
(Bi-amping with a conventional crossover, is next to pointless, and isnt active amplification.)
Replace the capacitors, its pennies to fix.
Agreeing with Steve, the other likely suspect is the ferrofluid
(My first set of speakers, built 25 years ago used a very very similar Audax tweeter, and that's how they fail)
Tweeters have arrived and have been installed. I'll look to dismantle one of the old ones and put photos up if people are interested.
Jonathan
Jonathan
I've just seen your update, Jonathan. Thanks for doing that.
Photos of the dismantling procedure would be useful for future reference, if its not to late to take them!
Photos of the dismantling procedure would be useful for future reference, if its not to late to take them!
I have now dismantled the dead tweeter. The old one is held together by 4 small Phillips type screws. The new replacement ones that I have ordered and fitted use an Alan bolt.
Having removed the screws, I expected the centre part to come away, but in fact the whole top section separates from the magnet. The voice coil was held to the top section by some mild glue - prised away easily. I could not find anything obviously wrong with the coil, aside from some debris inside.
Reassembly is easy, provided you remember to align the dimples on the top of the magnet with the holes on the reverse of the coil mount.
Hope this helps someone in the future.
Jonathan
Having removed the screws, I expected the centre part to come away, but in fact the whole top section separates from the magnet. The voice coil was held to the top section by some mild glue - prised away easily. I could not find anything obviously wrong with the coil, aside from some debris inside.
Reassembly is easy, provided you remember to align the dimples on the top of the magnet with the holes on the reverse of the coil mount.
Hope this helps someone in the future.
Jonathan
