JBL 3115A crossover circuit diagram

[Mazza]

Hi there,
I'm trying to track down the 3115A crossover circuit diagram.

All the links I've found here to the JBL Professional site seem to now be dead.

I have a pair of 2445's on 2385's, hopefully a pair of 2226's (coming soon) and some salvaged 4331a enclosures that I'd like to mash up into a system.

Seems this will be a close match for the 4673.

Any help very much appreciated! Thank you :D

Cheers!

[Earl K]

Tough network to copy due to the tapped coil.

Here it is though.

:)

[Mazza]

Thank you EarlK! :hurray:

I will use the original schematic for inspiration/a starting point/sense check my design.

I have already measured the (https://www.diyaudio.com/forums/multi-way/349990-efficiency-2-jbl-2445j-cd-2380a-bi-radial-post6105138.html)2445's on the 2385's freestanding (https://www.diyaudio.com/forums/multi-way/349990-efficiency-2-jbl-2445j-cd-2380a-bi-radial-post6105138.html) and IMHO they perform great, certainly better than I expected....


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I've been able to mock up a crossover that gets them nice and flat on axis with a theoretical 800hz(ish) highpass....

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But wanted to see how JBL implemented their approach - learn from the masters.

:cheers: