New Italian speaker company

[scott fitlin]

can the 2450SL diaphragm be put into the 41 driver without modification?

I believe there was a post last year about this, and while the diaphragm can be fit into the 41 driver, it must be shimmed to have the voice coil properly situated in the magnetic gap.

I would be interested in trying this, but it isnt plug an play, it requires a scope and a skilled person to do it. I could learn myself how to, and theres a possibility of doing exactly this when and if aluminum really is no longer available!

[Maron Horonzakz]

About the shim......As it was explained to me buy a authorized JBL repair service dept In St louis. The shim some times is used 0n all drivers that might fall at the extreams of tolerence specs. If you look under diaphram ..At dome of phasing plug..Some times a set of plus + or minus - numbers will be written to give a clue to installer as to how mutch shimming is needed ..Some times the matching numbered diaphram can be provided from the company or proper shims provided. I also read some where on the FORUM where some one used a paper calling card as a shim. A bad trick or a lucky guess but not recommended. Pin alignment is the same.

[scott fitlin]

I would opt to have it done by Eric Wayne of Consolidated Audio in Pompton Lakes, NJ! he is one of the best JBL repair centers in the world, if not the best! His recones and repairs look, feel, and sound like a new driver from the factory! His glue work, shimming and centering are exceptional. You can in fact hear a difference between a recone done by him vs a recone from somewhere else!

[Maron Horonzakz]

Its an art well respected . But finding a good one .... Its like finding a good brain surgen you dont know untill you wake up.

[scott fitlin]

63 replies, 1082 veiws, 5 pages! Keep it comin, this thread is cookin!

[Maron Horonzakz]

If JBL ever dropped the aluminum diaphrams for 2440/2441 that would be a sad sad day. (for them) If they wont support us I wont support them.

[scott fitlin]

It doesnt appear they will, at least not for the time being, so I think we are safe!

[paragon]

Yourè all right,
but doen`t forget the forum you wright !
Yes, there are many very good speakermanufactures like JBL.
I like Beyma (best JBL copy`s), RCF (also), 18, ATC, Fostex, Coral,
Focal, Audax, Isophon, Magnat, Ciare, TAD and so on.
All these make very, very good components, some better as JBL.
But we love JBL, or not ??
Yes, i doen`t like many new components JBl make, but the older ones are the best you can get.
Compare to E..V..., Kl.., Bo.. and other. See the difference.

Best regards
Eckhard