N333

[delahais]

Hi,
what modification can i do on n333 for a 2425h driver ?:idea:
thanks.

[Mr. Widget]

Here is the schematic for the 3133 which I believe is identical to the N333.

http://www.jblproservice.com/pdf/Network%20Schematics/3133%20Network.pdf

Since it uses a tapped autoformer changing it from the 16 ohm LE85/2420 to the 8 ohm 2425H isn't entirely straight forward. I believe that Giskard posted an equivalent schematic without autoformers, but that will take a bit of advanced searching.

The easy fix... which isn't the best solution but should work is to put an 8 ohm 20 watt resistor in series with your driver. You will loose 3dB of sensitivity... but I expect that isn't a problem.

Widget

[Alex Lancaster]

:) The not so easy but correct fix is to get D16R2425 diaphragms.

[ounesh]

Hi Delahais

Have you got my private message about N333 filter in last days ??

Ounesh

[John W]

Here is the link to the equivalent N333 without the autoformer.



http://audioheritage.org/vbulletin/showthread.php?t=166&page=1&pp=15&highlight=l300+charge