Variable lowpass CrossOver

Printed From: the12volt.com
Forum Name: Car Audio
Forum Discription: Car Stereos, Amplifiers, Crossovers, Processors, Speakers, Subwoofers, etc.
URL: https://www.the12volt.com/installbay/forum_posts.asp?tid=11544
Printed Date: July 22, 2025 at 9:01 AM

Topic: Variable lowpass CrossOver

Posted By: mark241
Subject: Variable lowpass CrossOver
Date Posted: March 27, 2003 at 6:39 PM

When you have an amp that says it has a lowpass cross over variable from 80 to 200 hz, and I set it at say 100 Hz and hook up a sub, would the amp only allow signal below 100 hz to pass through to the sub?

Replies:

Posted By: esmith69
Date Posted: March 27, 2003 at 7:03 PM

You are correct. The filtering occurs before the amplification stage, so a more precise explanation would be that with a low-pass crossover the amplifier will only amplify signals below 100 Hz.

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