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midlife
01-31-2010, 10:16 AM
Can you change xover frequency on vintage jbl xovers?

hjames
01-31-2010, 10:30 AM
Can you change xover frequency on vintage jbl xovers?

Need more melody to know what you are asking ...

Which crossovers?

The passives built into the speakers - well, if you solder new components in, yes, they can be changed ...

The actives, well JBL/UREI active crossovers are adjustable ...
see M552/M553
http://www.jblpro.com/pages/electronics/mseries.htm

speakerdave
01-31-2010, 10:40 AM
Can you change xover frequency on vintage jbl xovers?

I assume the question regards the 5234/5 crossovers. Yes, but it takes finding or building new cards of the appropriate frequency. The loads are detailed in the manuals at JBL Pro.

midlife
01-31-2010, 11:25 AM
I would like to move up a N40 xover from 1800hz to 2200hz

speakerdave
01-31-2010, 03:51 PM
I would like to move up a N40 xover from 1800hz to 2200hz

No.



Can you change xover frequency on vintage jbl xovers?

You're talking about a whole new crossover.

JBL 4645
01-31-2010, 06:35 PM
Get a digital crossover Behringer DCX2496 where you can select the crossover of your choice till your blue in the face with it.:p

hjames
01-31-2010, 06:58 PM
Get a digital crossover Behringer DCX2496 where you can select the crossover of your choice till your blue in the face with it.:p
Another stage, add in all that lovely noise ...
(don't think he wants any active xover in the mix)

LE15-Thumper
02-08-2010, 07:02 PM
As long as your unit isn't riveted shut (or if it is, you'll have to open it)

It wouldn't be that hard at all.

LE15-Thumper
02-08-2010, 07:19 PM
Schematic: