SpeakerTalk

... I am pretty sure the cracking sound cam from the speaker...
Of course the sound came from the speaker!! Where else could it come from? The speaker is reproducing whatever the amplifier sends it. ...

Cracking definitely sounds like the amplifier is limiting in some way. Current limiting sounds worse than voltage (clipping) limiting.

Have you got an oscilloscope which would let you look at the ...

Depends on the programme material, unless you’re listening in mono.

… or did you mean top and bottom on one side?

Bitd it was always clipping - unless it was the cartridge mistracking…

It never hurts to ask the obvious ... so...are you sure the amplifier is not clipping?

Knowing nothing at all about remedial woodworking, I've brought it home and laid it on the kitchen table with some 3/4" drive sockets as weights in an attempt to straighten it.

No idea i ...

Don’t know that one.

KEF used Bostik 4141, a white water based adhesive which dried clear, for dustcaps, bitd.

Don’t risk any solvents on Bextrene. What adhesive did you use for dustcap to cone? If it’s now reasonably solid then carefully cut of the excess ( if you really must) Skillful scalpel use requir ...

Admiring your patience.

Sorry, no schematics. The Maidstone (Model 109) and Model 4 were the last projests I worked on at KEF before I moved on. I know nothing of Model 4.2

Rotating LF units sounds like a good idea if you ...

If the recesses in the back of the baffle where the B110's sit are only slightly oversized, could you pack out the chassis edges with tape or foam strip or rubber O ring material? Maybe stick a suita ...

Many congratulations on a good job done.

Happy Christmas to everyone. I’m afraid I tested +ve for covid this morning, so no family get together for me.

...Comparing (by hand) the movement of the re-ferrofluided mid with the others shows a huge difference in compliance of the whole assembly.

The compliance or stiffness controlled region is below r ...

Great stuff. You're obviously a quick learner. I've deleted the ex-duplicate posts.

I've never tried MEK as a CA killer. I think the commercial CA de-bonders are mostly acetone.

I've installed it in the midrange. I used a graduated 1cc syringe with a long needle. I'd estimate that I used somewhere between half and three quarters of a millilitre. The gap had been thoroughly ...

...What's your view on this? I recall you mentioning that there might be issues with the adhesive losing its bond in the tweeter, but I'm not sure which bit of tweeter that applies to...
It's very di ...