If either of those is true, read on, and we’ll get just a little bit into the weeds. Your approach to adjusting your subsonic filter depends most heavily on whether your subwoofer is set in a sealed or ported enclosure.
However, you might be the kind of audiophile who’s more into hard numbers, or you may want a hint on where to start. That’s a great way to find that balance we talked about above. Then adjust it back up until the bass notes tighten up again. Play some of your favorite bass-heavy tracks and adjust the filter threshold until the low notes start reverberating.
#American bass xfl no subsonic filter how to#
The next step is knowing how to make your high-pass filter work for you. The best thing to do is listen. We’ve now covered the purpose of a subsonic filter and how it works. Too many deep bass thuds can tax the limits of your woofer and cause it to wear out much faster than it otherwise would. For visual learners, the video below illustrates how low frequencies can distort a subwoofer’s cone alignment without a filter. Subsonic notes sound awesome, but they damage your hardware when they get out of control. We absolutely love the feeling of low notes thudding through our whole bodies, but we love something else just as much: not having to replace our subwoofers once a month. That’s where all the bone-shaking, window-rattling fun is! We’re right there with you. If you’re a true bass-head, you might be incensed at the idea that you’d want to cut out subsonic frequencies. Think of the filter as a slope, not an on-off switch. If your subsonic filter is set to 40 Hz or 30 Hz, notes will still get through but will be much quieter. Instead, the number you set the filter to represents the frequency at which it starts to reduce the intensity of the sound. It’s not important to understand exactly how they’re wired. The only thing you do need to know before we move on is that attenuation doesn’t completely dampen sounds of a certain frequency. We’ve already mentioned that the main mechanic these subsonic filters use is attenuation. It’s the opposite of a low-pass filter, which only attenuates signals above a certain line. In other words, it’s what we know as a high-pass filter: a filter that lets through signals above a certain Hz threshold and attenuates any signal below that threshold. (To learn more about frequencies and how they work, check out our Beginner’s Guide to Frequency Ranges.) It decreases the amplitude of those low notes you feel more than you hear. If you have one we missed, let us know in the comments! What Is a Subsonic Filter?Ī subsonic filter is a component on your subwoofer that reduces the intensity of notes which come through at lower frequencies. Our Q&A covers all the big questions you might have about subsonic filters. If you have an amplifier, preamplifier, subwoofer, or any other unit with a subsonic filter, and you want to use it in a way that won’t destroy it prematurely, you need to know what your subsonic filter is and how to adjust it. We’re here to help. Yet it’s not a topic amp owners can blow off. Others have adjusted theirs at multiple volumes and haven’t noticed any difference.
Some people own amps with subsonic filter buttons that they never turn off for fear of breaking something. Even among seasoned audiophiles, subsonic filters are a topic guaranteed to sow confusion.
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