Hi!

There seem to be a few Meyer-modified JBL drivers out there. Searching for JBL 2450 + Meyer gave me this:

For example, in the case of the JBL 2450 4-inch compression driver, our modifications involved replacing the standard plastic connectors with more reliable gold-plated terminals and replacing the titanium diaphragm with an alternative aluminum alloy version for lower distortion. We also rebuilt and damped the stiff 'diamond' metal suspension to extend its life by reducing fatigue and also sealed the voice coil so we could use ferrofluid cooling to improve power handling.

I intend to buy Truextent Beryllium and need cores in OK condition. To prepare for the Truextent the gap must be cleaned for ferrofluid. But does the sealing of the voicecoil represent any potential problem?

Thanks!

Øystein