Seas L18rnxp Notch Opions Please

[GOWA]

I appreciate your input.

You can see it here:
http://s197.photobucket.com/albums/aa7/linggowa/

Thanks

[Dave Bullet]

What are you trying to notch?

If you are trying to kill the 7KHz break up node of the woofer - this does nothing to help.

In that case - you need a series notch filter (that is inductor / cap / resistor all wired in series, then paralled with the woofer). You then increase or decrease the resistor to reduce / increase the amount of cut.

In zaphs design - he uses just a cap / inductor without a resistor to create the deepest notch possible precisely at the L18's largest breakup node.

Your parallel notch doesn't achieve anything (I've modeled on Zaph's L18 measurement).

Hope that helps,
David.

[Dave Bullet]

Here's your network (alone) modeled on the L18 measurements provided by Zaph.

David.

[GOWA]

Thanks Dave.