Just had a diaphram fail in my 175 driver. It was original with the red wax seals. When I opened the driver I found the diaphram to be perfect but measured open with a meter. With a closer look I found the diaphram torn at the base of the dome. It was torn where the positive lead wire went across the back of the diaphram. In turn the lead wire was torn too. Is this just from old age or what? Anyone see this happen before?
Typical metal fatigue in an ancient diaphragm that has seen lots of action.
Edgewound...JBL Pro Authorized...since 1988
Upland Loudspeaker Service, Upland, CA
Originally Posted by edgewound
Are O.E. diaphragms, or better, still available for the 175?
Thank you,
Thomas
Yes...OEM would be either aluminum 2421or titanium 2425.
2421 is about twice the price of 2425.
Edgewound...JBL Pro Authorized...since 1988
Upland Loudspeaker Service, Upland, CA
Odd, the titanium cheaper than aluminum?
Which do you get the best feedback from and or prefer yourself?
My old drivers seem OK for now but I should probably squirrel an O.E. pair away while they're still available.
Thank you,
Thomas
Proper diaphram is the 2410 and still listed at OCS.
http://www.speakerrepair.com/mm5/mer...ode=l_jbl_dias
Yes...and the 2410, 2421 and 2425, 2470(phenolic) diaphragms are all interchangeable. 2410/LE175 has the tangential compliance.
2421 and 2425 have the diamond pattern compliance.
For longest lasting durability in a metal dome, the titanium unit gets the nod. A coat of aquaplas will tame the resonances of the 2 mil dome.
Edgewound...JBL Pro Authorized...since 1988
Upland Loudspeaker Service, Upland, CA
The JBL 175 diaphragm has not been available for quite a long time. The diaphragm suggested by JBL for use in this driver is the D16R2410. We have used this many times in this driver and have never had any complaints. We are happy to provide them for anyone who needs them. [email protected]
It would be wonderful if you would happily sample me a couple
Regards and thank you in advance,
Thomas
You can order from our website www.speakerex.com or call and place an order. 800-849-6972
What a generous gesture, thank you!
Do I reference "Cathy sent me" to let them know this is a complementary sample deal?
Thanks again
Thomas
you're so cute. go for it. never hurts to try. thanks for being so much fun!! you remind my why I enjoy this work. lately everything has become toooo serious. I keep reminding myself this isn't neurosurgery
So does this mean I'm getting my sample diaphragms, or not?
Thomas
sure we can send you a sample. the handling costs $199.00 and the shipping should be about $10-12.00 for anywhere in the continental us
Just replaced with a 2425 and called it a day......
There are currently 1 users browsing this thread. (0 members and 1 guests)
Posting Permissions
Reply With Quote