Again, it is NOT an issue with the audio output quality of any of the speakers, or the Subwoofer. Because your Subwoofer(s) and your regular speakers are, themselves, located in different spots in the room. Positioning it closer to a corner does this even more so. Then you really WILL have a problem due to the difference in physical locations of the Subwoofer and each speaker. The numbers below highlight general guidelines for speaker/subwoofer crossover frequencies Listen for smooth transitioning between the subwoofer and the speakers. This is the "pressurization" of the room I've alluded to several times And the different dimensions of the room --its height, width, and depth -- result in DIFFERENT Standing Waves. TECHNICAL NOTE: You will likely encounter setup menus in your AVR or Surround Sound Processor asking you to specify whether your speakers are Large or Small. And this should start you thinking, "How do I get the Bass audio into it?". (If you DO have speakers which plug in to wall power, and have driver elements specifically designed and amplified for Bass (at VOLUME), then what you've got your hands on is a speaker with a Subwoofer built into the same cabinet! The Crossover is steering higher frequencies away from the regular speaker, but the Subwoofer is not able to reproduce those frequencies. In essence the Subwoofer supports the low-end of every speaker (along with handling the special, LFE Bass audio). For example; 2400 Hz has a wavelength of 5.6266 inches. Very large center, surround, bookshelf: 40-60 Hz. The right way. If the width and depth of the room are different, positions close to the rear wall (near the TV screen) will couple differently than positions close to a side wall. Which Crossover Frequency do you pick? The Subwoofer should ALSO be handling the lowest frequencies of this audio, as well, so that your regular speakers are not challenged with trying to reproduce it! Or, instead of investing in audio measuring gear or trusting solely to your own taste in how the audio should sound, you could use a test track such as found on the "AIX Audio Calibration", Blu-ray, disc I described in my post on Calibration Discs. Because a 30 Hz Crossover means the speaker is expected to contribute quality audio down to 15 Hz! The crossover frequency is the sound frequency point at which sounds after that will be greatly reduced, effectively blocking them. But bass doesn't stop there! That is to say, at 80 Hz and above, the regular speaker is carrying the audio. Where they are exactly opposite of matching up you get "Cancellation Nulls" -- a loss of level of that Bass frequency. →. Those folks will be tempted by the Musical Subwoofers, which produce higher quality Bass -- just not as loud. Some of the major manufacturers of Subwoofers have helpful tools on their websites you can use to figure out just how big of a Subwoofer you should get from them -- based on the dimensions of your listening room. So the combined output from the regular speaker and the Subwoofer is lower than it should be at those in-between frequencies. That says the Crossover should be no lower than 160 Hz! We've already talked about the importance of room dimensions vs. the wavelengths of the various Bass frequencies for example. Created with Sketch. The Magic of 2-Channel Stereo Speaker Systems High-Res Music Streaming and the Future of HiFi Audio: You Can Have It All. If you know your speaker’s frequency range, set the crossover point roughly 10 Hz above the lowest frequency your speakers can handle cleanly. What about the lower limit? A good Rule of Thumb is you don't want your Crossover to be higher than 100 Hz. Subwoofers also differ in how LOW they can go in frequency. Tips for Setting the Proper Crossover Frequency of a Subwoofer, Why a Center Channel is the Most Important Speaker in Your Home Theater, The Magic of 2-Channel Stereo Speaker Systems. Instead, I want to focus on the contribution a good choice of Crossover Frequency can make in this effort! SVS Customer Service will be open on Labor Day, September 7th, from 9am - 5pm EDT. Crossover points and Order. The idea, of course, is to pick the Crossover Frequency -- from within your range of candidate frequencies -- which produces the smoothest tone sweep (the least variation in Volume). It separates and sends the high-frequency components to the tweeter, the bass audio signals to the woofer, and the mid-range components to the mid-range speakers. I believe that choosing a crossover frequency using wavelength within a given design should be taken into consideration in any speaker. But Second, they want their Subwoofers to be ACCURATE -- to produce Bass of high quality. And that might be only, say, 120 Hz! If you’re noticing a bass bump at the crossover frequency, try adjusting the volume control to match the output of your main speakers. And that means you need both size AND power in the speaker doing the huffing! If you think about it, the physics of a given speaker cone generating Standing Waves in the room is largely a matter of geometry. And those different Standing Waves *INTERACT*! You can get two (or more) of a smaller model and position them around your room to work as a set. We've already talked about ONE problem with that. If you try to push things too far -- say setting the Crossover at 50Hz in this example, trying to take a little more advantage of the "down to 30 Hz" goodness of your regular speakers -- you may bypass the low-end protection in the Crossover and send 25 Hz audio (or even lower) to that Subwoofer! Closer to a larger, more expensive ( and usually larger ) Subwoofers can extend low. To trying this test, of course,... 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