Wiring in an L-pad

oquela · 5th September 2007, 05:22 AM

I'm a bit confused. I'm making a 2 way, 12db crossover (Linkwitz-Riley) with a crossover point @ 2500 hertz (2.5k) I know that I must reverse the tweeter leads on this particular crossover to correct for phase.

My question is this: how (and where) do I wire in the L-pad I'm using to attenuate the horn? Is it before the High Pass filter, (where the wires are still out of phase) or after I've reversed the wires?

planet10 · 5th September 2007, 05:28 AM

After the XO and before the tweeter.

dave

oquela · 5th September 2007, 05:36 AM

Dave,
thanks for the quick response and attachment....so just to clarify, according to the drawing, the #1 lead on the L-Pad is what USED to be a tweeter negative, but is NOW the positive?

planet10 · 5th September 2007, 05:42 AM

yep

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5th September 2007, 05:22 AM	#1
oquela diyAudio Member Join Date: Aug 2007	Wiring in an L-pad I'm a bit confused. I'm making a 2 way, 12db crossover (Linkwitz-Riley) with a crossover point @ 2500 hertz (2.5k) I know that I must reverse the tweeter leads on this particular crossover to correct for phase. My question is this: how (and where) do I wire in the L-pad I'm using to attenuate the horn? Is it before the High Pass filter, (where the wires are still out of phase) or after I've reversed the wires?

5th September 2007, 05:36 AM	#3
oquela diyAudio Member Join Date: Aug 2007	Dave, thanks for the quick response and attachment....so just to clarify, according to the drawing, the #1 lead on the L-Pad is what USED to be a tweeter negative, but is NOW the positive?

5th September 2007, 05:42 AM	#4
planet10 frugal-phile(tm) diyAudio Moderator Join Date: Oct 2001 Location: Victoria, BC, NA, Sol III Blog Entries: 4	yep

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