L 65a woofer?

[GordonW]

Hi JBL freaks,

He was also advised to replace the 126A's foam ring by a rubber type ring. Is this an option, or will it change the sound dramatically ?
Please let us have your wisdom !!!

Thanks a lot,

Jan Slagman
The Netherlands.

Never replace the foam surround ring on a JBL driver, with a rubber surround ring. It will destroy the top-end balance of the driver, by causing it to roll off too early on the high end. In other words, the woofer will no longer properly meet the midrange, and there will be a response gap between the two drivers.

Regards,
Gordon.

[edgewound]

Thanks Edgewound,

You have been of a great help to us. We really appreciate your input.

Jan Slagman & friend.

Glad to help, Jan. I hope that works out well for you and your friend.

Like Gordon said, it wouldn't be a good idea to resurround with rubber...it would really change the 126A behavior and any intrinsic value.

[jan_slagman]

Thanks guys,

That's exactly what we wanted to know. My friend thought using rubber would solve a problem on long terms because foam will only last for a limited time.
I will certainly advise him not to use rubber for his JBL 136A's !!!.

Second question: Edgewound advised me to grab the JBL 128-H's which are offered on Dutch Marketplace at this moment. He also advises to alter the crossover network, but as far as we could see the components are sealed in a kinda resinous substance.

We would be very pleased and grateful if you could help us in this matter once again.

Thanks for lending us your time.

Jan Slagman
Veenendaal
The Netherlands.

[edgewound]

Jan...

Probably the best bet would be to use the schematic for the L65B and build new crossover networks with new, fresh, better parts.

I wouldn't mess with potted old ones.

[terry37932]

Guys, I'm hoping you can help me out here as I'm a relative FNG here. After reading numerous posts I have finally figured out that I own a pair of L65A's that I bought through the AAFES Pacific Catalog back in 78 when I was stationed in Korea. After 2 recones and 2 additional refoams I figure it might be time to rebuild the XOvers (IMHO) anyway.

Can anyone point me in the right direction as to where I can get the parts as well as maybe upgrading the parts on the XOver boards.

Any and all reconendations would be extremely welcome.

Thanks,

T.