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In Reply to: RE: You're going to glue this found, beryllium diaphragm to your driver? posted by Ktem on September 30, 2013 at 20:00:41
Did I miss some intended joke or sarcasm?
He just wants to replace an existing blown diaphragm with it maybe?
Apparently beryllium, when used for both dome material and surround, is a bit brittle in the surround department and not as robust as other materials. As such, distortion, too much power, or a whoops with an interconnect or perhaps a turn-on transient could result in a dead driver. This is why some replace the original diaphragm with a Radian "Substitute" (I would not call it an equivalent in this case. Some even prefer the sound of the Radian diaphragm saying it is less laid back than the beryllium, but I have no idea why someone would pay the money for a TAD driver then use an aftermarket diaphragm...
Cheers,
Presto
Follow Ups:
Think a moment.
What, are these only available through TAD for people with TAD drivers with TAD serial numbers?
I've replaced diaphragms in other professional quality drivers before... and once just for sonic reasons. What's the big deal?
Cheers,
Presto
I'm sure all the non hobbyists here can properly align and adhere a new diaphragm to such an expensive driver.
No problem.
Meanwhile, check the resale value for speakers which have had so much as the crossover components replaced by the end user....
It doesn't take a special skill set. Anyone with basic tools who can follow simple directions can replace a diaphragm. There are alignment pins on the one-piece frame and diaphragm assembly that centers it perfectly with no special tools or instruments. The fastening hardware is then replaced and tightened, and it's done.
No adhesives are typically required. Some drivers might have gaskets which may or may not need replacing. The drivers I have worked on did not require gaskets or gasket replacements to change a diaphragm.
Seriously, it's not a big deal.
Cheers,
Presto
Self aligns you need to educate yourself.
I am sure this person would have no trouble aligning or affixing a new BE diaphragm in a multi kilobuck speaker...because, after all, in such a product there are no tolerances or materials science involved.
As most compression drivers are used in Sound Re-enforcement, field repair is a strong component in the design and manufacture process.
By looking at these videos, I think you will learn something, that appears you presently don't know.
TAD 4001 and 2001 are field replaceable and like the JBL in the videos listed, are simple to replace and alignment is already build in the driver design.
There is no glue, you are thinking of dynamic cone based drivers.
Are you attempting to seem annoying or idiotic?
The TAD driver in question was designed by a JBL engineer to be field serviceable.
If a person is all thumbs, it might be a good idea to hire the work done (as with other things in life).
For true TAD drivers and their replacement diaphragm, as well as JBL drivers location tabs are provided. The replacement DIAPRAHMS have a mounting ring attached with provision to match up to the locating tabs. Makes replacement a snap (this includes Altec Compression drivers, too)
Actually this all inane as I do not know how he got the idea that the OP want to adapt a beryllium diaphragm. There is nothing in the original post to indicate that, and it seems that he simply jumped to a conclusion that is totally unwarranted and unsupported.
What a troll..........
"What, are these only available through TAD for people with TAD drivers "
Kind of.
The 2001 has a 48mm voice coil, most 1" drivers have 44.4mm voice coils.
Follow my link titled $800 if you need to buy one.
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