what happens when you hook up xover wrong

Keith D · 11th December 2003, 10:16 PM

Speaks for itself. It was 600 before I got the camera.
What happened is I had the tweeter network wired backwards. That is, I had accidently wired the tweeter to the input instead of the output.
They sounded nice too until the first two resistors started sizzling the glue, the drivers survived too, and I was definitly pushing more than 60 watts through them, with a lot of bass too, the woofers were snapping really hard. I just modeled the mistake in speaker workshop and it looks like I had a 1500 xover going, no wonder it was so good at low volumes!
Just a warning to all of you, hook your xovers up right, or else!

proper xover schematics and graphs from Curt C

Andrew Steele · 13th December 2003, 12:33 AM

no comment..... lol

fdegrove · 13th December 2003, 01:21 AM

Hi,

What happened?

Nothing should happen other than an out of phase/polarity hook-up, bo damge should be done.

Cheers,

Keith D · 13th December 2003, 04:29 AM

No, I wired it completely backwards. I plugged it into Speaker Workshop and the overall impedence was roughly 2 ohms, so my NAD amp really does have some balls! Basically the resistors that were supposed to be after the inducor and capacitors were instead before, so they were soaking up lots of power.
I'm debating whether I should make another PE order to replace them, it all sounds ok now that it's wired right, but I have a feeling the heat damaged them.

13th December 2003, 01:21 AM	#3
fdegrove diyAudio Senior Member Join Date: Aug 2002 Location: Belgium	Hi, What happened? Nothing should happen other than an out of phase/polarity hook-up, bo damge should be done. Cheers, __________________ Frank

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13th December 2003, 12:33 AM	#2
Andrew Steele diyAudio Member Join Date: Jan 2002 Location: Queensland, Australia	no comment..... lol

13th December 2003, 04:29 AM	#4
Keith D diyAudio Member Join Date: May 2003 Location: Rockford, IL	No, I wired it completely backwards. I plugged it into Speaker Workshop and the overall impedence was roughly 2 ohms, so my NAD amp really does have some balls! Basically the resistors that were supposed to be after the inducor and capacitors were instead before, so they were soaking up lots of power. I'm debating whether I should make another PE order to replace them, it all sounds ok now that it's wired right, but I have a feeling the heat damaged them.

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