to change the frequency 5243A

[alnico]

how to make to change the frequency on my chart of my 5234a, I have 2 charts 18b 80hz and I would like to have 60hz for my sub
I would like to know that it value of resistance and the values of the condensers to have the frequency of 60hz
My sub is JBL 4688 with two 2240........and I would like to make a test to cut it has 60hz

thanks

[grumpy]

I haven't done or tested this, but it would appear that you can scale the "condenser"
values (e.g., use the resistor values from say the 5500 Hz card and multiply the
condenser values by 100). In that example, you would end up with a 55Hz crossover.

-grumpy

[Robh3606]

Hello

No problem it's in the manual how to scale the values. Take a look in here:

http://www.jblproservice.com/pdf/Vintage%20JBL-UREI%20Electronics/JBL-5235%20manual.pdf

Rob:)

[alnico]

Hello

No problem it's in the manual how to scale the values. Take a look in here:

http://www.jblproservice.com/pdf/Vintage%20JBL-UREI%20Electronics/JBL-5235%20manual.pdf

Rob:)



in the manual the lowest frequency is of 80hz

[Robh3606]

Yeah well the formula is on page 27