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The Daily Insight

What should the crossover be on my subwoofer?

Author

David Ramirez

Published Mar 14, 2026

What should the crossover be on my subwoofer?

You generally want your crossover set to where your speakers start to roll off—for example, my speakers can’t go much lower than 80Hz, so my subwoofer’s crossover is set to about 80.

What’s the best way to switch the phase on a subwoofer?

If you have a phase switch, switch it between 0 and 180 degrees and see if you hear a difference. One may sound better than the other depending on your room and gear. You can read more about what phase is here, but in practice, it’s pretty simple: pick whichever one sounds better.

Why does my subwoofer not make bass sound?

A subwoofer is designed to playback bass sound. When the input source does not contain much bass sound (e.g. most TV shows), the bass sound may not be audible. Test this by playing something you are sure of that will generate bass.

How long does it take to set the volume on a subwoofer?

The trick is to set your subwoofer’s volume, and you can do it in just a few seconds. Fast forward to 2:53 in the video above to follow along—the rest is a showcase of a specific subwoofer. I can’t tell you how many times I’ve been to someone’s house and the subwoofer was so loud that it just made everything sound boomy and awful.

Can a sdx12 be used as a subwoofer?

While that is not important for a subwoofer, it means the SDX12 could be used as part of a 3-way or possibly even a 2-way speaker (if the tweeter could be crossed low enough). The very linear motor with very low distortion makes this a good choice for a speaker with subwoofer performance.

If you have a phase switch, switch it between 0 and 180 degrees and see if you hear a difference. One may sound better than the other depending on your room and gear. You can read more about what phase is here, but in practice, it’s pretty simple: pick whichever one sounds better.

What to do when your subwoofer won’t turn on?

Use your receiver to set the sub’s crossover setting. -Set the Level control to approximately the 10 o’clock position. -Sit where you normally listen to your system and play some music with a good bass beat. Have someone switch the phase between 0 and 180. Use whichever one sounds the best to you.

How does an Active Subwoofer work with a passive crossover?

Adding a line-level crossover and power amp turns the passive subwoofer into an active subwoofer, and also makes the system bi-amplified. A self-contained active subwoofer combines a subwoofer with a line-level crossover and power amplifier in one cabinet, eliminating the need for separate boxes and amplifiers.