My remaining question is should I leave this setting on while either listening to CD's or watching TV/movies? But not subsonic filter option. Can you name them? Ok. (are you certain the box is tuned to 30 hz?). If not, its ported. Pro tip; Have a friend/wife/mom help adjusting the phase while you sit in your listening position. Report Comment. What high end receivers are you talking about with a subsonic filter? While filtering is important, this isnt necessarily a dealbreaker; it all depends on what kind of music you listen to. The sub moves just a little at times and that when I put the system at MAX. Since its tuned at 20hz will that act as a subsonic filter for 10 to 15hz or not at all? A good point to set it is 25hz. These cookies track visitors across websites and collect information to provide customized ads. The Low Pass Frequency is adjustable from 30 Hz to 160 Hz in 1 Hz increments. Agree, I see it as over kill,beyond overkill.. and then there is the ON or OFF filter that many amps have..say, set at 28hz(Non adju I have a TC Sounds LMS- Ultra 5400 18" subwoofer in a 7.3ft 3 ported enclosure after all displacements. For a better experience, please enable JavaScript in your browser before proceeding. I have a sine sweep but have nothing to record the frequencty response and no eq either. March 2019 You set it just under where the mid bass speakers pick up. other than a high pass filter set to 80hz. http://www.klippel.de/download/Nonlin/Klippel_nonlinearity_poster.jpg, Advanced Forum Stats, Paid Registrations by. All of HPF settings will very on how good your subs suspension is, some can play a mean free air and some will bump the backplate, lol. We recommend this setting for smaller rooms and/or to get a faster, more musical and punchy sounding bass. # Low friction, completely stable dual pivot bearing design for vertical movement. April 2014 Massive output to 18hz ported vs output down to 10hz sealed but not as much output at 18hz and above. Mhycoal 3 yr. ago You should stick to sealed without a subsonic unless you have a DSP that can apply a Hpf to the signal Adjustable from 0-180 degrees. December 2018 Subsonic Filter & Balance This preamp has a subsonic filter which can help make older records with more noise sound better. You are using an out of date browser. Tony. could you suggest me an equivalent", "I found a lot of circuits that are very similar to this one and constructed one but for some reason", "hi can you pls mail me your pcb layout ,", "I have tried the same circuit for my AC motor. Do it in the avr when I do, but it's rare I need more (or less). noooooo wayyyy. this has never been discussed on this forum ever. some good info for those who dont know i guess and who cant search. 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. This discussion. #4. you don't need to run a subsonic filter, if you tune your box correctly. I'm writing to you to tell you about my experience with my subsonic filter. For example, If your subsonic filter is set to 40 Hz, 30 Hz notes will still get through but will be much quieter. March 2017 To remove this unwanted low frequencies, subsonic filters like the circuit featured here is used. The push button turns on and off subsonic filter . Play some music with a steady bass beat, and when you hear the most amount of bass, the phase is correctly adjusted. I flipped it on and off multiple times just to confirm my observations. But now have a new car, this will take a while to figure out. A round port is 3" x 3". If you dont like to crank your volume up that far, you might never notice any difference in subsonic sounds. For a better experience, please enable JavaScript in your browser before proceeding. Especially on some ported subs. These cookies do not store any personal information. If it's sealed it can be opened up, low. Doesn't sound like it if you are constantly adjusting. I have mine inside of my phono stage which is a project audio tubebox ds. If you have a ported box I would definatley keep the subsonic at 30 Hz. If it is set to 30 Hz. Message User. Well, with the box being not quite the right size for the driver, that's most likely why it never sounds quite right. PFM Subsonic Filter: The Epicenter Concert Series utilizes a PFM (Programmable Frequency Match) filter which will help with speaker control and amplifier power management. Were here to help. can I use this circuit to generate a tremolo effect? Put on your favorite song and turn the volume up to your normal listening level. A forum for all things Trailblazer SS including mileage, horsepower, transmissions, interior mods, tires and more! Explaining that is beyond the scope of this Q&A, but if youre just now learning, you should tune your subs, and this video is a great explainer. This filter has a very sharp cutoff character. August 2012 The subsonic filter should be set slightly below the tuning frequency of the port in your box. Weve now covered the purpose of a subsonic filter and how it works. Check the level of each sub independently by turning off all of the other subs not under test. (anthem arc) But I think I can only set the high pass as low as 20hz thus loosing anything below that.. The subsonic filter is actually an active Tschebyscheff high pass filter of the fifth order. | House Grail MY TURNTABLE is a thorens td 125 fully modded pretty quiet but I still believe not 100% sure that the subsonic filter degrades my sound a little. Edit. Turn your Subsonic Filter down to 10Hz November 2015 A subsonic filter is a component on your subwoofer that reduces the intensity of notes which come through at lower frequencies. make the port 6% longer should tune it a little lower. VerticalScope Inc., 111 Peter Street, Suite 600, Toronto, Ontario, M5V 2H1, Canada. There are many DIY sub builders on the forum and they sometimes install a subsonic filter before the amplifier if they want to cut out certain low frequencies from the driver. If On is selected, then the Low Pass Filter will be disabled. geolemon. Right you will have to port it lower, watch the excursion on low notes. Where you set your SSF will be somewhat dependant on how much power you are running, how large your enclosure is, and how much Xmax your driver has. So it's so hard to tell if it's better. The maximum useful frequency is 3 MHz. For the crossover. The blue LED above the button is illuminated when its on. November 2012 We recommend leaving the phase at 0 degrees when using an AV-Receiver/Processor with time alignment (speaker distance) feature. 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. Our Q&A covers all the big questions you might have about subsonic filters. Below tuning the enclosure "unloads" the pressure in the enclosure and it no longer acts as a spring. # Highest grade materials used throughout. Bass boost source: boobland.club Bass boost increases the volume at a certain frequency, usually at 40-45 Hz. You can set the subsonic filter on your 1723 Series Subwoofers in the Crossover Menu and for the 1961 Subwoofers in the Setup Menu. Where I would part company from you is considering budget constraints. 1,773 posts. It has a cutoff frequency of 18 Hz. Too many deep bass thuds can tax the limits of your woofer and cause it to wear out much faster than it otherwise would. So if you have a SUBwoofer in your Delete. Building a ported sub using an alpine type R 15inch driver. Check out the MTX Audio THUNDER1000.1 Thunder Series Car Amplifier for a great amp with a subsonic filter. Plenty of genres never get anywhere near the 50 Hz range. WebGain setting Buttons marked with and set gain of the amplifier. However, you might be the kind of audiophile whos more into hard numbers, or you may want a hint on where to start. March 2014 If you want a little less rolloff, go with an 18 or 12db. A very difficult decision. Where this gets to be a bit more murky is in finding the best combinations of 1)number of ports plugged 2)room size setting 3)subsonic filter setting and 4)SPL for a given room. Tis sub has a 7.3ft3 box made of 1" MDF tuned @ 20Hz with a slot port that is 16" wide 3" tall x 39". Verify the level equidistant for each sub. A forum community dedicated to home theater owners and enthusiasts. Since you are tuned to 35hz, you can set the filter around 30hz to 35hz. House Grail is reader-supported. You're not going to blow up your car playing below tuning. Just don't be reckless with it. SSF @ 25hz is fine. That is, whatever you set it at; only frequencies above that setting go through. The frequencies below the crossover are sent to the subwoofer. Sign up to newsletter and stay in touch with us, Copyright 2015-2023 Arendal Sound - All rights reserved, 5% Ambassador refund for existing Ambassadors. I have a totally restored Nikko Alpha II amp and a Nikko Beta 20 Pre Amp. Its the opposite of a low-pass filter, which only attenuates signals above a certain line. Within that band, itll vary depending on your chosen music and the rest of your setup. If you pay attention, you will find that when it comes, The intelligent induction lamp is a cheap indoor motion sensor nightlight that comes in handy so you do, This post covers a few things about rechargeable electric arc lighters. Enjoy your next ride with your newly balanced bass track! What vehicle is this? My avr has very advanced room correction. This feature inverts the signal, which means the same as 180 degrees phase, however, this is true 180 degrees at all frequencies. Especially on some ported subs. Functional cookies help to perform certain functionalities like sharing the content of the website on social media platforms, collect feedbacks, and other third-party features. WebThe subsonic filter is used to protect your subwoofer from damage due to playing low and loud. Any help on this is greately appreciated. What would you do with a Qi wireless charger? its about time someone does a write up on this. thanks op.. sticky it, still waiting on sticky. now plz o wait, doign a noob thing here and e Webedited December 2003. The Fora platform includes forum software by XenForo. A subsonic filter is mostly used in low frequency technology. WebSecondly, a 30Hz tune would put a rule-of-thumb subsonic setting of 22.5Hz. It's not at all clear to me what you are talking about? Learn more OK, I'm convinced Show me the demo first January 2015 I never do anything close to that with my sub because I don't want to blow it. WebEasy way is to leave everything hooked up, subsonic OFF, volume low, play deep bass like 28hz sine wave, turn volume up, as woofers start moving too much turn the subsonic When you purchase through links on our site, we may earn an affiliate commission, which supports our community. First the subsonic filter. Note that my This helps avoid bad distortion since they cant handle deep bass. 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. This eliminates the bizarre subsonic sine wave almost all LPs have. February 2014 November 2014 Webfactory setting will suit you fine. Not a 3" round port. Possible settings are 40, 43, 50, 53, 60 and 63dB. February 2012, All April 2017 In other words, its 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. The difference in distance in this example is 1 meter. The only thing you do need to know before we move on is that attenuation doesnt completely dampen sounds of a certain frequency. 5. Most all multichannel receivers have bass management. My Sansui integrated had a "subsonic filter" which was labeled 14Hz, so I am used to calling it subsonic (and the OP called it a subsonic filter in the title). What I wanted to say is that amps sound the same. Seriously considering the mindsp but I have a concern. If you're looking for extreme protection of the sub, then the higher slope (24) is better. I got a couple of anticollision car door warning lights! 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. I have never heard of this. We also use third-party cookies that help us analyze and understand how you use this website. Selectable from 12 Hz to 31 Hz. 0 comments 100% Upvoted Log in or sign up to leave a comment Log In Sign Up Sort by: best no comments yet Be the first to share what you think! Its not important to understand exactly how theyre wired. when I run a movie I have to find the right setting because every movie sounds different. For a better experience, please enable JavaScript in your browser before proceeding. 100-120Hz high pass. In off mode the amplifier has an internal subsonic filter at 10 Hz to prevent instabilities in the power supply. March 2016 A subsonic filter is a component on your subwoofer that reduces the intensity of notes which come through at lower frequencies. December 2021 EQ1 Gives a flat ground plane response to under 20 Hz, which will give great emphasis on the deepest bass in-room. February 2023 If yes, you have a sealed enclosure. Resolution was greatly improved with excellent transparency. Support the12volt.com Back to Top bullseye753 Copper - Posts: 61 Joined: May 27, 2008 Location: North Carolina, United States As a result power handling decreases dramatically and excursion is uncontrolled which could result in damage to the driver, specifically physical damage as a result of over excursion at even modest power levels. Web20 Hz subsonic filter. June 2012 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). Usually you want the high pass filter of your components set to the same frequency as you low pass filter of your subwoofer to eliminate phasing caused by the multiple drivers attempting to recreate the same frequencies Ok so 30hz on the subsonic and then on the LP filter start at 80. So the question is. December 2019 What Is a Subsonic Filter & Why Should You Care? I never run my sub very hard with movies otherwise the bass overpowers everything! VerticalScope Inc., 111 Peter Street, Suite 600, Toronto, Ontario, M5V 2H1, Canada. Somewhere from 50hz to 65hz is likely where you are going to want your crossover set. Electrodynamic "On a long enough timeline, the survival rate of everyone drops to zero." If you are trying to find 65hz, just start cutting things in half. Its the opposite of a low-pass filter, which only attenuates signals above a certain line. You are correct in the presumption that subsonic filters provide a level of protection from over excursion. Thats a great way to find that balance we talked about above. These cookies will be stored in your browser only with your consent. That's the simple answer. Set the subsonic filter at about Fs or about 15% below the port tuning frequency (FO) whichever is higher. I don't have it turned up loud enough to ruin my sub even at 10hz so I am not worried about that just wondering what the lower bass notes will be like tuned at 20hz. My new ones should be better. The proper way to level match your subs is to use the internal pink noise generator of your processor and an SPL meter set for slow response "C-weighted". If it's ported you set it 1/2 octave below the boxes tuning. The Fora platform includes forum software by XenForo. It's at 20hz. The current consumption is aound 5 mA. You should set the filter at 20Hz, you can set it a tad higher, like 22-25, if you would like. July 2012 The hertz scale is logarithmic. Set the LPF at 60-80 Hz. How do you adjust a subsonic filter? CarAudio.com is the oldest and largest car audio forum community, since 2000. It may not display this or other websites correctly. I understand that high end gear might contain a subsonic filter option etc.. So thanks for taking your time to explain to us relatively few people who care about such thing! As a very general rule of thumb, I usually set an infrasonic filter 1/3 octave below tuning frequency. 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? November 2013 In off mode the amplifier has an It The typical Tschebyscheff resonance of 0.1 dB does not cause any distortion. 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. Not only will your low-frequency sound be less distorted, but your expensive subs will also last much longer. JavaScript is disabled. I don't have it turned up loud enough to ruin my sub even at 10hz so I am not worried about that just wondering what the lower bass notes will be like tuned at 20hz. 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 wont destroy it prematurely, you need to know what your subsonic filter is and how to adjust it. You can select the 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.. Thanks for the replys. It is adjustable from 6dB/Oct to 24dB/Oct with 6dB increments. 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. http://www.realmofexcursion.com/downloads.htm, System Design: Help Me Choose Equipment For My Car. January 2014 First the subsonic filter. Ill have to try and find something with a bit of a warp or wobble Cinema Room: LG 77" C1 | Xbox Series X | Zidoo Z1000 Pro | ATV 4K | Denon X4700H running Monitor Audio Silver fronts and rears, SVS PB-1000 Pro sub and Cambridge Audio Minx Min 22 Your approach to adjusting your subsonic filter depends most heavily on whether your subwoofer is set in a sealed or ported enclosure. bad contacts- main source of miracles in electricity. February 2017 Now when I use my subsonic filter my sub moves much less but!It's been 1 year I'm debating if I should use this filter because Im pretty sure my system sounds better with the filter off. I just finished up with the rebuild of my system (see sig) last weekend and when I was setting the dials on my sub amp before powering it up I set my subsonic filter to what I thought was around 20Hz.