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View Full Version : Crossovers for JBL 4341 Whitch can I use as a substitute? any ideas?



steveaaa
08-07-2013, 01:28 PM
I have a wonderful pair of JBL 4341 speakers but I need the full crossovers and Lpads for them. Does any one know what I can use as a substitute for now and them I will change them when I find a pair of the original ones. Any help will be appreciated. The drivers are 2231A, 2405 (or 077 drivers, I have both pairs) , 2420, and the 2121 (which are reconed with original jbl 2121 cones) . Cabinets are close to mint with grills. I have all the drivers but just need the crossovers to finish the project. thanks for looking

jbl4ever
01-06-2014, 03:00 AM
No subs I have ever know of. Xovers for those are very rare like the 2121's unless someone parts them out. Here are 2 possible solutions. You could go 4 way active or Biamp the 2231's and look for these xovers which the later one can be made. 3120A which is 1250Khz and a 3106 which is 8000Khz

hjames
01-06-2014, 03:52 AM
I have a wonderful pair of JBL 4341 speakers but I need the full crossovers and Lpads for them. Does any one know what I can use as a substitute for now and them I will change them when I find a pair of the original ones. Any help will be appreciated. The drivers are 2231A, 2405 (or 077 drivers, I have both pairs) , 2420, and the 2121 (which are reconed with original jbl 2121 cones) . Cabinets are close to mint with grills. I have all the drivers but just need the crossovers to finish the project. thanks for looking

It is NOT recommended to use the original 4341 crossovers with those early designs and near-45 year old capacitors.

4341 Crossovers can be upgraded with 4343 crossovers, or with 4345 crossovers.
Since 4345 were the most recent series of those big 4 ways, those would be the preferred "original" replacement.

Another approach would be to scratch-build a replacement pair of crossovers from Parts, which is probably the very best approach to get all new parts and the best sonic performance.

One approach a number of folks here have used is a Biamped design - where you'd feed your preamp into an Active crossover to split off the bass and feed the low-side to a high power amp for the woofers, then feed the "high-side" to another amp for that feeds a new internal crossover for just the 3 upper drivers (mid bass, LE-85, and slot tweeter).


There are threads on this site detailing replacement designs for the big 4 ways - if that is within your skill-set (no offense meant). Let us know if that is an approach you'd be interested in ... we can provide links to similar threads

steveaaa
01-26-2014, 08:50 PM
I would love to get the jbl 3143 or 3145 crossovers that are used in the jbl 4343 or 4345 speakers.

If anybody knows where I can get a pair please email me at steveaaa111@gmail.com

Thanks for all your help

Steve