Field Guide to the JBL 10 inch Midbass driver 2121 2122 2123

[Havana Woody]

I have had for 35+ years two E-110 and two M12-8 in .6 sf sealed boxes and they have been the best sounding mid range Piano speakers I have ever had. They have been in my attic awaiting re-coning for 10 years. and apparently that is about 12 years past the expiration of available factory kits. I can't find any references for the M12-8 (not M112) except one line in a resource I found here that shows them to use the same kit as the E-110s which makes sense because they are Identical baskets to the eye. Now I see that there may be a glimmer of hope I can get the C8R2123H kits. or equivalent. Can anyone point me to a reliable and quality source you have got these from Or perhaps someone has 4 they need to sell. I really miss the hard hitting snap these provide. I can't get that kind of energy out of my Kappa6 and the 10W1-8s I replaced them with after they started making noise Just never had the crisp sound that the paper surrounds did.
any help or suggestions would be welcome.

[Havana Woody]

If I remember, the K110 and E110 had the same coils but the former changed a few times on the "E" which made for a slightly different spec.

I don't have any of those open or kits to compare at the moment BUT I think I have some pretty rare K110-4 kits in storage. When it thaws I will look.

sub

Are you still around ? I know my storage has some untouched areas that are over 8 years , hoping by long shot to find you still have these

[1audiohack]

JBL still has C8R2123 kits.

Barry.

[Havana Woody]

JBL still has C8R2123 kits.

Barry.

Thank you Barry !

I must not have ask the tech in the right manner, I suppose they might not make the leap to suggesting the 2123 when I was asking about the E-110, Maybe I wasn't in the right store, were does a average consumer go to best order parts from JBL?

[Mr. Widget]

...Maybe I wasn't in the right store, were does a average consumer go to best order parts from JBL?

You cannot buy JBL recone kits from legitimate JBL dealers/repair facilities that follow the rules. Your best bet is to work with a reputable factory authorized repair facility. They will correctly install the kits in your cores for you.


Widget

[DualTriode]

Added 2122 response.
But all of responses are so called 'small signal responses'. On higher power I do believe that they are
much different.
It would be nice if such measurements somebody can add.

Ten Years later.

This is the JBL2123 in a sealed 0.83 FT3 box, mike at near field.
Measured with AP APx 555.

Thanks DT