settle bet passive crossover?

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Flatlandfreak

Copper - Posts: 48

Joined: January 04, 2005

Location: United States

Posted: March 11, 2009 at 9:49 AM / IP Logged

Ok, so me and my boss are having a small argument about passive crossovers and I would like to prove my point.

So I have a simple question. When using a non-polorized capacitor as a simple passive crossover (bass blocker if you will) on a standard 4-ohm speaker. Does it make any difference whether the capacitor is placed in series with the positive (+) or negative (-) lead of the speaker?

Please only people who know for certain please answer. I'm looking for the "expert" opinion here.

Thanks! settle bet passive crossover? -- posted image.

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i am an idiot

Platinum - Posts: 13,673

This member consistently provides reliable information

Joined: September 21, 2006

Location: Louisiana, United States

Posted: March 11, 2009 at 1:00 PM / IP Logged

It does not matter. Actually on a 2 channel bridgeable amplifier, there is signal on left positive and right negative wires. So the cap on the right positive wire is actually on the ground wire. The signal is on the negative wire. If your boss does not believe this, remove all speaker wires from the amp and using a meter check the resistance between the left negative and the right positive wire. It will be 0 ohms.

Above is assuming that the bridge wires of the amp are the left positive and the right negative.

lspker

Silver - Posts: 503

Joined: November 23, 2003

Location: Canada

Posted: March 11, 2009 at 9:47 PM / IP Logged

As long as your consistant both will work. It won't change the crossover point, but it can affect time alignment and off axis response, this is why it's nomally on the + side (hesitate to say posative because it is an ac signal) or you could go nuts and split the different and put half on each lead.

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settle bet passive crossover?

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