This takes very little time and once happy epoxy is applied before opening a bottle of wine...….

great work!

Any recommendation on wine for this repair :-)

great work!

Any recommendation on wine for this repair :-)

Will be on the look for some stands for these I think... might have to make some since they are reasonably rare I think...

No one can do this better than you Craig!

Now looking at how the old glue was applied; it tells a lot why the magnet shifted...

Keep filling the Workbench forum with exiting projects Craig!

I have been listening to the speakers for a couple weeks now occasionally, seems no issues with them at all really.

I may now take some measures to stiffen the enclosures and recap, and check the resistors haven't caused heat damage. 

and in background I now have to consider making some stands myself since these are so rare now.

I want to lift them 18in / 45cm from the ground over a low sideboard which I think is not possible with the original stands.

the low bass seems present but modern music with very low frequencies seems to be confused. 

bass guitar and drums seem well reproduced though.

classical music really protrays well. 

I think high treble could be improved with cap change, is there a kit for caps / resistors?

also the sockets for the speaker wires at the back are giving really quite a loose connection, I've not seen any common solution for this yet, can anyone help? 

and thanks again to Craig... 🤒

Beo_Jean wrote:

No one can do this better than you Craig!

Now looking at how the old glue was applied; it tells a lot why the magnet shifted...

Keep filling the Workbench forum with exiting projects Craig!

Charles

Thats very kind of you to say....I am keeping an eye open for another BG4000 in need of repair, friend of mine is quite taken with mine (and withb good reason 🙂)

Craig wrote:

This was delivered in the post today, usual issue.....cone seized solid in the coil.

Just received a pair of these and one of the bass units have suffered the same fate. Reading 3.4 ohms across the coil so I'm hoping it can be fixed? I've read several threads here on the topic, which leads me to this question? Am i right in thinking it's just the strength of the magnet holding the motor system together? Hence you have to prise them apart? Cheers.

The magnet, core that sits inside and the top plate are all glued together during manufacture.....the glue gets tired over the years and fails, follow the post and carefully pull the magnet from the frame.....

I have a pair extra. Let me know if you're interested.