Ok. My sub with my port had 111db at 15Hz and 116 at 20Hz. EQ1 Gives a flat ground plane response to under 20 Hz, which will give great emphasis on the deepest bass in-room. You are using an out of date browser. The trick is to find the right balance; it should be loud enough that you can feel the bass but attenuated enough that its not destroying your amp. OK, so if the port tuning frequency is 40Hz then your subsonic should be set to 40Hz which is pretty high. Join the community today and get started. October 2014 March 2015 WebInstall the Subsonic server app where you keep your media. The push button turns on and off subsonic filter . I feel like with it on it gives a little less clarity and affects the highs a little less air,space. June 2012 A subsonic filter will introduce phase shift at audio bandwidth frequencies, but I'm never sure which is worse; the phase shift at low frequencies that might not exist on That means the safest setting for its subsonic filter is half an octave below whatever frequency the port is tuned to. August 2014 Since you are tuned to 35hz, you can set the filter around 30hz to 35hz. I have a few test LPS and when I put it on the silent groove test I can see that my 15 inch (JBL L300 Moniters) sub moves a little with my amp which is a little weird cause my amp is supposed to cut at 20hz. Right, or play tones lower and lower and when it unloads When simply playing records, I use my Sansui AU-517 integrated amps subsonic 16hz filter always. Its tuned at 20hz. I have no clue what I would like the best.. Good point the sealed could tame peaks better and room gain could get me to where I want to be.. Plenty of genres never get anywhere near the 50 Hz range. If it's ported you set it 1/2 octave below the boxes tuning. Some people own amps with subsonic filter buttons that they never turn off for fear of breaking something. The typical Tschebyscheff resonance of 0.1 dB does not cause any distortion. Put on your favorite song and turn the volume up to your normal listening level. Is it possible it affects the highs. 3kHz to 3.5KHz. WebSecondly, a 30Hz tune would put a rule-of-thumb subsonic setting of 22.5Hz. You also have the option to opt-out of these cookies. (are you certain the box is tuned to 30 hz?). Other uncategorized cookies are those that are being analyzed and have not been classified into a category as yet. January 2014 I have mine inside of my phono stage which is a project audio tubebox ds. A forum community dedicated to all mobile audio enthusiasts. For stereo users you may leave this setting Off, so you can adjust the Low Pass Filter under the next step. A subsonic filter is a component on your subwoofer that reduces the intensity of notes which come through at lower frequencies. April 2013 Subsonic The button on the right side of a front panel turns on and off subsonic filter. Some bass units on the market dont have subsonic filters built in. Combine that with the purely basic frequency response of the amplifier itself and you're starting to get so low that a subsonic is almost unnecessary. You can also buy, sell, or trade your car audio gear with other forum members in our popular classifieds. Deals The difference in distance in this example is 1 meter. That's the simple answer. You can select the subsonic filter frequency (frequency at which you want to begin filtering) and subsonic filter slope (the rate at which you want to attenuate the frequencies)., Receive exclusive offers and promotions. October 2015 Now Available: Tech Talk Podcast with Scott Wilkinson, Episode 19 Click here for details. 4. August 2013 Typically, EQ2 setting will sound faster than EQ1 as it has a lack of output in the deepest bass which will give the bass a heavier sound to it. and I guess I don't run my sub hard enough because on "bass I love you" which goes down to 10hz I believe it doesn't move that much more than at 20hz. So, if you already set the subsonic filter frequency to 20Hz, then setting the slope to 12dB/Oct will ensure that the signal has 12dB lower output at one octave under 20Hz (one octave below 20Hz is 10Hz). WebThe subsonic filter is used to protect your subwoofer from damage due to playing low and loud. You can set the subsonic filter on your 1723 Series Subwoofers in the Crossover Menu and for the 1961 Subwoofers in the Setup Menu. My new ones should be better. Especially on some ported subs. Out of these, the cookies that are categorized as necessary are stored on your browser as they are essential for the working of basic functionalities of the website. The low pass can start anywhere above the low pass frequency of the other than a high pass filter set to 80hz. If you set an 18 db/oct ss filter to 40 hz, then at 20 hz it will be 18 db quieter, the 24 db/oct would be 24 db quieter. Thats a great way to find that balance we talked about above. You're not going to blow up your car playing below tuning. Just don't be reckless with it. SSF @ 25hz is fine. Verify the level equidistant for each sub. Setting the Subsonic Filter and Bass Boots. December 2016 I have since added some more absorption to help counter a 60Hz suckout, (fiberglass batts under some end-tables) but nothing else. Phase adjusting above will shift somewhat with frequency. . For a better experience, please enable JavaScript in your browser before proceeding. April 2012 His other interests include astronomy, hiking, and fishing. Most subs have a filter built into the plate amp to protect the driver from damage from super low frequencies that it can't produce. Great information! Would be great to get this added as a sticky or added to a sticky for those who do not search and to have the information more r Most often, the very low frequencies create distorsions in music recording or reproduction. That will be a pretty boomy system. Anything above 80hz makes the subwoofer easy to locate in the soundstage and you don't want that. Tony. This website uses cookies to improve your experience while you navigate through the website. | House Grail I had my 6-channel amp's opamp and power supply upgraded to better quality parts / grades. Hi I first like to say great article you wrote! Help with speaker placement 5.1.2 or 7.1 or ??? Ultimately, I agree with you that that is a very good approach. When you purchase through links on our site, we may earn an affiliate commission, which supports our community. February 2012, All Since this is fairly limited to an artifact associated with vinyl playback, is there any value to having this setting On while listening to digital playback? How to set a subsonic filter on a subwoofer? November 2014 Selected value is indicated by LED. So the question is. EQ3 One octave above the EQ1 setting, so for example if on EQ1 the subwoofer has a +-3dB point of 16Hz, the EQ3 setting will have a +-3dB point of 32Hz. You must log in or register to reply here. On the flip side, I think it's a good place to start. If you're just guessing as to what frequency to set it at. On top of that you're guessing whe Update Privacy Preferences Subsonic Filter Selectable subsonic filter settings, that will filter away the deepest frequencies. Example: 2 subwoofers in the same room, one subwoofer is placed 4 meters away from the listening position, and the other is placed 3 meters away. If I set it to flat, (fine for sealed) then it will not apply a filter and the sub could over drive when lower than tuning frequency. its an older pioneer AVR and yes it has a room eq setup feature with a mic. The next step is knowing how to make your high-pass filter work for you. Well, with the box being not quite the right size for the driver, that's most likely why it never sounds quite right. Even among seasoned audiophiles, subsonic filters are a topic guaranteed to sow confusion. Report Comment. In your case the 10w6 I wouldnt go lower then 26-28hz on the test tone. Fascinated by all sort of tools, Pete loves reading and writing about all the latest gadgets and accessories that hit the market. If you arent sure which one you have, you can tell by looking at the box. http://www.realmofexcursion.com/downloads.htm, System Design: Help Me Choose Equipment For My Car. It has a cutoff frequency of 18 Hz. EDIT 2: Ah, and you dont need your woofer connected to do that 8 Reply blockrocker 3 yr. ago Yes, do this. of no electrical". May 2014 So, if its tuned to 40 Hz, set the filter knob to 30 Hz. Because of the 50db gain high output MC setting, the dial on the front for variable resistance loading is disabled and it defaults to 47Kohm, which is fine for the Denon. What would you do with a Qi wireless charger? I never do anything close to that with my sub because I don't want to blow it. September 2015 First the subsonic filter. Building a ported sub using an alpine type R 15inch driver. The Low Pass Frequency Slope means at which rate the frequencies should be tapering off, from the LPF Frequency point chosen. What vehicle is this? Adding the subsonic filter will ensure the subwoofer has less excursion in the deepest bass, and typically when filtering away some of the deepest bass it will sound even tighter. 07-25-2005 at 10:34am. Over the years, he has developed a keen interest in a wide variety of DIY projects around the home. I notice when I play a certain easy-listening RCA Living Stereo album that my woofers are doing a huge dance, moving in and out like crazy, where there is no real bass in the song being played. Especially on some ported subs. JavaScript is disabled. Set the subsonic filter at about Fs or about 15% below the port tuning frequency (FO) whichever is higher. Of course, can always adjust for an anomaly track. When using bass-boost chance to burn subwoofer rises as clipping occurs much earlier. Copy Comment URL. "Maybe you could further investigate programming this module through its serial port. so if the bass is up too high it drowns out everything else. Each octave up is twice as many Hz as the previous one, and dividing any frequency by 2 takes it one octave lower. Message User. In off mode the amplifier has an WebGain setting Buttons marked with and set gain of the amplifier. when using subs in a vented box, you do want a subsonic filter, otherwise the subs will try to reproduce frequencies below the ports' tuned frequency, which is often 35-45Hz, and well above the lowest frequency the subs can hit (particularly since boxes are usually tuned Copyright 2023 House Grail. #4. you don't need to run a subsonic filter, if you tune your box correctly. A sub sonic is for when your playing loud below tuning it helps keep the sub under control and not over extend or hit the back plate. Webedited December 2003. Right you will have to port it lower, watch the excursion on low notes.