Castle Eden repair/replacement drive units

[kirstysdad]

I had a pair of Castle Pembrokes in the mid 80's. Lloved them but too big to keep at the time...
I've been given a pair of cosmetically rough Edens with creaking mid/bass units. Lovely but expensive carbon fibre jobbies...
I see elsewhere that Monacor do similar replacements but £260 per pair is prohibitive. Any suggestions for an economic repair to the units or broadly similar 7"/170mm driver? For old times sake.

They weigh a bloody ton BTW!

[Macca]

Something like these, reasonably inexpensive

https://www.thespeakerstore.co.uk/store/p29/6.5inchbassdriver45watts8ohms.html

Sensitivity might be a bit high compared to the old drivers so you might have to pull that down a bit.

Any cheaper and you're just fitting junk, more expensive and it just isn't worth it.

[Lawrence001]

Probably similar to the ones they made that pointed up Harlechs or something. They usually cracked too nothing you can do about it which is a shame.

[kirstysdad]

Thanks gents, it's a balancing act, junk vs value... £49 for the pair seems a reasonable gamble.

[kirstysdad]

Something like these, reasonably inexpensive

https://www.thespeakerstore.co.uk/store/p29/6.5inchbassdriver45watts8ohms.html

Sensitivity might be a bit high compared to the old drivers so you might have to pull that down a bit.

Any cheaper and you're just fitting junk, more expensive and it just isn't worth it.

How would I reduce the sensitivity? :scratch:

[Barry]

How would I reduce the sensitivity? :scratch:

You would need to fit a resistor in series with the new drive unit. The value of that resistor will depend on the sensitivity of the original drive unit and of its replacement.

[kirstysdad]

You would need to fit a resistor in series with the new drive unit. The value of that resistor will depend on the sensitivity of the original drive unit and of its replacement.

Thanks for that Barry...

On further inspection I've found that the spiders on both units have become adrift from the metal chassis... looks worth trying to get a glue brush in there to secure them. The outer edges have a plastic(?) ring attached.
All appears secure at the voice coil edges.
Araldite Rapid seems appropriate.