Driver magnetic question

[Robh3606]

Hey Tom

I just realized you are talking 2426's. The screw on adaptor plate is aluminum. You are not tapping the field directly but what ever stray magnetism is getting through the spacer and the airgap around the ferrite ring. You have at least a 1 inch gap there. The ferrite ring will start to "grab" the plate that close. I don't think you really have too much to worry about. If they can shield drivers with steel cans and bucking magnets I would think this is more benign than either. Is the spacer bar magnetized from a previous driver???

Rob

[Tom Loizeaux]

I just checked the support plates - and they are not magnetized!
The photo a few posts up is similar to my configuration, but my plates span the full height of the cabinet. The plate is sandwiched between the fiberglass horn and the 2426.
I'm looking in to having these plates made from brass, which would eliminate any possible magnetic question, but I won't get into that project if I can be assured that the steel won't affect these drivers.
Thanks for you input!

Tom

[Tom Loizeaux]

I spoke with Everett Watts at JBL Pro yesterday about this question and he assured me that the steel plates will not have an adverse affect on the performance of the compression drivers.

I think I will replace the plates with a non-ferrous material anyway.

Tom