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What is the best Hz for a subwoofer?


Tom Walkers

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Depends on the low frequency cutoff of your main speakers. Ideally, the subwoofer would take over seamlessly from the low end of your main speakers.

 

Start by setting the subwoofer high pass filter to the manufacturer's spec for the low frequency limit of your main speakers. Adjust up or down from there.

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7 hours ago, Tom Walkers said:

Hi, there! What is the recommended crossover frequency for the subwoofer?

 

 

That would depend on the characteristics of the speakers that the subwoofer is working with.  Some speakers have useful output down to a relatively low point, so the accompanying subwoofer crossover point should be set fairly low, while if the speaker’s useful low limit is not that low, the sub rolloff should be set to suit that.

 

Since the frequency response of both speakers and subwoofers does not cut off sharply, you need to set the crossover point to allow a certain amount of overlap.  This will avoid having a dip at the crossover point, where both the speaker and sub will be down by 3 or 4 dB.

 

If you have a sound level meter (an SPL meter) and a test CD, you can check the combined output of your main speakers and your sub, and adjust the sub’s high frequency cutoff to give the smoothest bass response, with the minimum of dips and peaks.  You won’t get perfection, but when you’ve got it as good as you can, it’s time to put away the test equipment and just enjoy your music.

 

Welcome to the Forum and happy listening!

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