Somewhere from 50hz to 65hz is likely where you are going to want your crossover set. Others have adjusted theirs at multiple volumes and havent noticed any difference. 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. I understand that high end gear might contain a subsonic filter option etc.. Some people own amps with subsonic filter buttons that they never turn off for fear of breaking something. Join the community today and get started. If your components will play lower efficiently then you can go lower than 80. If you are only running like 200 watts to a sub with 16+ mm of Xmax, you can probably get by with setting it a little lower - just be careful. If you want a little less rolloff, go with an 18 or 12db. Thanks for your advise on this topic. Play some of your favorite bass-heavy tracks and adjust the filter threshold until the low notes start reverberating. INSTRUCTIONS FOR USE Pro-Ject Phono Box DS2 USB If you have a ported box I would definatley keep the subsonic at 30 Hz. 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 Building a ported sub using an alpine type R 15inch driver. I had my 6-channel amp's opamp and power supply upgraded to better quality parts / grades. What would you do with a Qi wireless charger? 3.5kHz high pass (tweeter) & 250-500Hz high pass (midrange) Subwoofer subsonic filter. I'd love to", "I2C is a multi-address bus man. This filter has a very sharp cutoff character. Set the LPF at 60-80 Hz. To be effective, a subsonic filter has to be very steep - this allows all wanted frequencies to get through, and rejects those that will only cause problems. I also recommend putting a jumper in the subsonic filter rows. Electronic synthesization can be murderous on speakers if they What is this? JavaScript is disabled. Home Trials When using bass-boost chance to burn subwoofer rises as clipping occurs much earlier. 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. subsonic filter September 2014 April 2015 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 You are using an out of date browser. My avr has very advanced room correction. Thanks for the responses, I guess I'll continue doing it by ear then. On/Off. If you arent sure which one you have, you can tell by looking at the box. You should set the filter at 20Hz, you can set it a tad higher, like 22-25, if you would like. January 2023 The frequencies below the crossover are sent to the subwoofer. Even among seasoned audiophiles, subsonic filters are a topic guaranteed to sow confusion. September 2015 The SQ turned out fantastic after some burn-in. I've been using Audacity to create an annotated MP3 collection from my old vinyl and have been living with these subsonic artifacts, worse in some LPs than others. To remove this unwanted low frequencies, subsonic filters like the circuit featured here is used. Performance cookies are used to understand and analyze the key performance indexes of the website which helps in delivering a better user experience for the visitors. November 2014 
"But this one goes up to 11"
. Setting the gains, x-over, and subsonic filter Not even close! This filter has a very sharp cutoff character. Setting your subsonic filter correctly eliminates the excursion demands on the subwoofer (s) below tuning and could provide you with years more service from your system. I keep them off if in a sealed Deals So in this case the closest setting will be 3ms. VerticalScope Inc., 111 Peter Street, Suite 600, Toronto, Ontario, M5V 2H1, Canada. 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. For Home Cinema use, where an AVR is used we recommend LPF Bypass On. 100-120Hz high pass. An electric arc lighter uses high voltage, I recently picked up a couple of microwave motion sensor radar modules. Subsonic notes sound awesome, but they damage your hardware when they get out of control. March 2019 This discussion. 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). Its the opposite of a low-pass filter, which only attenuates signals above a certain line. Any help on this is greately appreciated. you can build the box so that it does not happen. February 2016 subsonic setting Especially on some ported subs. You can do all of this from your deck too. Not a 3" round port. I have a totally restored Nikko Alpha II amp and a Nikko Beta 20 Pre Amp. It is easy to set all you need are test tones and a multi-meter. Bass Maximizer, Patent #4,698,842 - AudioControl WebTurn your Subsonic Filter down to 10Hz then slowly turn up the filter frequency until you hear it take effect on your sub bass. December 2013 January 2015 The Subsonic is now correctly set. We also use third-party cookies that help us analyze and understand how you use this website. I have a sine sweep but have nothing to record the frequencty response and no eq either. So, if you already set the LPF frequency to 100Hz, then setting the LPF Slope to 12dB/Oct will ensure that the signal has 12dB lower output at one octave above 100Hz (one octave above 100Hz is 200Hz). It subsonic filter As the founder of House Grail, Pete's primary goal is to help consumers make educated decisions about DIY projects at home, in the garage, and in the garden. Massive output to 18hz ported vs output down to 10hz sealed but not as much output at 18hz and above. Then I normalize the entire album and export the tracks as AAC. How to set subsonic filter properly? - DiyMobileAudio.com Car Use WinISD to help you make proper sub and amp selections according to your listening tastes. That's the simple answer. I learn something new everyday, I'm glad I asked this question because otherwise I would have never know how to actually set the ssf and whether to use it or not. Subsonic Filter 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. January 2014 But now have a new car, this will take a while to figure out. You are correct in the presumption that subsonic filters provide a level of protection from over excursion. If yes, you have a sealed enclosure. Tbone, the JBL amp has it's own low-pass filter built into the amp. Setting subsonic filter Advertisement cookies are used to provide visitors with relevant ads and marketing campaigns. Its the opposite of a low-pass filter, which only attenuates signals above a certain line. Learn more. My speakers have an in-room low extension -3dBs at 32 hz so I don't want to miss out on real bass reproduction. Too many subsonic notes can still damage your subwoofer. You using an avr? (are you certain the box is tuned to 30 hz?). to match the cutoff frequency and damping of any acoustic-suspension speaker and to set the bass boost and net damping. March 2017 It is adjustable 6dB/Oct or 12dB/Oct. The difference in distance in this example is 1 meter. Turn your Subsonic Filter down to 10Hz What Is a Subsonic Filter & Why Should You Care? | House Grail 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. July 2016 Hook up all four readers to the bus, and "talk" to the", "Update: I just found a great post that also explains more about the pressure sensor used in this", "Hey Dear:- March 2022 its a high pass filter for your subwoofers. setting up subsonic filter and crossover? | Chevy Trailblazer SS I cant find the SL100B Transistor, And what's your buddy's vehicle? It has a cutoff frequency of 18 Hz. June 2015 Right, or play tones lower and lower and when it unloads If you're looking for extreme protection of the sub, then the higher slope (24) is better. For visual learners, the video below illustrates how low frequencies can distort a subwoofers cone alignment without a filter. December 2014 This feature inverts the signal, which means the same as 180 degrees phase, however, this is true 180 degrees at all frequencies. 11. 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. June 2014 October 2013 JavaScript is disabled. WebBasically, with the subsonic off, play a 27 Hz test tone, measure the AC output voltage, multiply that number by .707, and then turn the knob up until the voltage hits that target. August 2013 Weve now covered the purpose of a subsonic filter and how it works. We recommend leaving the phase at 0 degrees when using an AV-Receiver/Processor with time alignment (speaker distance) feature. 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. Setting the gains, x-over, and subsonic filter January 2019 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. The number chosen here means the frequencies above will be filtered away to avoid high tones coming from your subwoofer nobody wants to hear Diana Kralls voice through the subwoofer anyways. How do you set up a subsonic filter? - Remodelormove.com It filters out very low frequency content that can potentially send your subs to the moon. 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". Selected value is indicated by LED. Slowly turn the bass boost until a distortion appears then dial it back to a clear sound. The short answer to your question is no. I got a couple of anticollision car door warning lights! But if youre a fan of the ones that do (and you know if you are), you need a subsonic filter to keep your subwoofers from rattling themselves to bits before their time. My new ones should be better. Edit. http://www.klippel.de/download/Nonlin/Klippel_nonlinearity_poster.jpg, Advanced Forum Stats, Paid Registrations by. Most all multichannel receivers have bass management. and a low pass for the other 7 speakers at 80hz. That is exactly what buyers looking at the Vitamix. Setting Subsonic And Lpf Just make sure to set the xover on the deck before you turn the xover on the amp to the highest Hz. (To learn more about frequencies and how they work, check out our Beginners Guide to Frequency Ranges.). subsonic filter Of course, can always adjust for an anomaly track. PFM Subsonic Filter: The Epicenter Concert Series utilizes a PFM (Programmable Frequency Match) filter which will help with speaker control and amplifier power management. Technical & Advanced Car Audio Discussion. amplifier has no subsonic filter, should You can also buy, sell, or trade your car audio gear with other forum members in our popular classifieds. (anthem arc) But I think I can only set the high pass as low as 20hz thus loosing anything below that.. Hi. By clicking Accept All, you consent to the use of ALL the cookies. Support the12volt.com Back to Top bullseye753 Copper - Posts: 61 Joined: May 27, 2008 Location: North Carolina, United States But opting out of some of these cookies may affect your browsing experience. As a very general rule of thumb, I usually set an infrasonic filter 1/3 octave below tuning frequency. Set the subsonic filter at about Fs or about 15% below the port tuning frequency (FO) whichever is higher. My avr has very advanced room correction. Your approach to adjusting your subsonic filter depends most heavily on whether your subwoofer is set in a sealed or ported enclosure. The typical Tschebyscheff resonance of 0.1 dB does not cause any distortion. 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. When you purchase through links on our site, we may earn an affiliate commission, which supports our community. It has very extensive dsp options and probably cheaper than selling your qsc amp and buying an inuke. so I find where it sounds perfect and leave it there. March 2016 Originally a subsonic filter was designed to catch recording errors and frequencies below 20hz hence "subsonic" that could possibly damage your subs. What vehicle is this? Is it possible it affects the highs. The subsonic filter is actually an active Tschebyscheff high pass filter of the fifth order. I'm actually very happy with it! Keep an eye on the subs to make sure they aren't bottoming out and just keep playing with it until you find a setting you like best. There was a lot of drone in that 60-80 Hz range. A subsonic filter is a component on your subwoofer that reduces the intensity of notes which come through at lower frequencies. 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.. Receive exclusive offers and promotions. Verify the level equidistant for each sub. This happens independent of the applied recording medium. The Subsonic filter slope means at which rate the frequencies should be tapering off, from the frequency point chosen. The sub moves just a little at times and that when I put the system at MAX. Anything above 80hz makes the subwoofer easy to locate in the soundstage and you don't want that. #4. you don't need to run a subsonic filter, if you tune your box correctly. These cookies will be stored in your browser only with your consent. 07-25-2005 at 10:34am. Think of the filter as a slope, not an on-off switch., Subsonic Filters are particularly important if you spin vinyl records as they can have possible warping that causes a phenomenon known as woofer pumping. Most amplifiers have a 12 dB crossover slope on the LPF, so if you set the LPF higher, you will get punchy bass and it will hit very hard, but if you keep it at 60-80 Hz you will get smoother lower more pleasant bass. If you dont like to crank your volume up that far, you might never notice any difference in subsonic sounds. Adjustable from 0 to 50ms in 0.25ms increments. His other interests include astronomy, hiking, and fishing. Thanks for the replys. It also has a balance control knob which is uncommon for a phono preamp. Check out the MTX Audio THUNDER1000.1 Thunder Series Car Amplifier for a great amp with a subsonic filter. Low subsonic frequencies, especially 20 Hz and below, damage the structure, so we want to attenuate them as much as we can. March 2015 November 2012 A SUBSONIC FILTER IS HIGHLY RECOMMENDED IF YOU SPIN 20-30Hz high pass. Verify the level equidistant for each sub. A ported sub can safely play about half an octave below its tuned frequency before theres a risk of damage. Too many deep bass thuds can tax the limits of your woofer and cause it to wear out much faster than it otherwise would. EDIT 2: Ah, and you dont need your woofer connected to do that 8 Reply blockrocker 3 yr. ago Yes, do this. 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. subsonic filter November 2015 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! # New armtube incorporating bi-metalic technology to reduce resonance and increase rigidity. Hi. 3-way speaker systems. December 2017 The only thing you do need to know before we move on is that attenuation doesnt completely dampen sounds of a certain frequency. It can help your amp save power when the bass gets real low. Were right there with you. Ultimately, I agree with you that that is a very good approach. basically, if you tune the box higher, and/or you will gain some spl, but excursion increases below the roll-off. You'll find everything you want to know about car audio and get installation help, tips and great deals on your car stereo projects. 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. That one takes some listening to get dialed in. Subsonic Filter & Balance This preamp has a subsonic filter which can help make older records with more noise sound better. Featured Image Credit: slightly_different, Pixabay, What do you get when you pit one top-tier blender against another? I never do anything close to that with my sub because I don't want to blow it. The subsonic filter should be set slightly below the tuning frequency of the port in your box. 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. August 2014 We recommend you try the factory setting first. Some bass units on the market dont have subsonic filters built in. June 2017 June 2016 Phase adjusting above will shift somewhat with frequency. April 2017 If On is selected, then the Low Pass Filter will be disabled. You're not going to blow up your car playing below tuning. Just don't be reckless with it. SSF @ 25hz is fine. JavaScript is disabled. 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 Over the years, he has developed a keen interest in a wide variety of DIY projects around the home. July 2012 I have mine set slightly lower for my sealed box. April 2016 May 2016 January 2016 We recommend this setting for smaller rooms and/or to get a faster, more musical and punchy sounding bass. What high end receivers are you talking about with a subsonic filter? Resolution was greatly improved with excellent transparency. JavaScript is disabled. March 2012 SEE ALSO: Read our reviews of the best car amplifiers for bass this year, MTX Audio THUNDER1000.1 Thunder Series Car Amplifier, Skar Audio Single 8" 300W Dual 2 Ohm Loaded Sealed Subwoofer Enclosure | IX-1X8D2, 6 DIY Garden Arbor Plans You Can Make Today (With Pictures), How to Install a Pendant Light 12 Easy Tips, 6 Companion Plants for Fruit Trees (With Pictures), Ix Series 8-Inch Dual 2-ohm loaded Subwoofer Enclosure, Peak Power: 300 watts | RMS Power: 150 watts, Subwoofer comes pre-wired and loaded in enclosure. 1,773 posts. Very common crossover frequency. It will unload under tuning and xmax. 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. 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. This helps avoid bad distortion since they cant handle deep bass. But on low to midrange stuff like the Yamaha RX-V667, is there a subsonic filter on the sub output? October 2014 It decreases the amplitude of those low notes you feel more than you hear. Can you name them? In connecting the subsonic fiter, remove the decoupling capacitor from the end module to avoid distorting the signal. Subsonic its the same high-pass filter (HPF) on the sub amplifiers (often on monoblocks) cuts off infrasound. The hertz scale is logarithmic. WebSecondly, a 30Hz tune would put a rule-of-thumb subsonic setting of 22.5Hz. For the LP I would play with that crossover a little, most think that the you should just set it to 80 Hz and leave it. (frequency always indicated by corresponding LEDs). VerticalScope Inc., 111 Peter Street, Suite 600, Toronto, Ontario, M5V 2H1, Canada. 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. September 2013 August 2020 JavaScript is disabled. February 2015 The best way I've found to set a SSF is to generate a sweep from 45 down to 10hz, about 60 seconds long, turn the subsonic up, then let that sweep It decreases the amplitude of those low notes that you feel more than you hear. so if the bass is up too high it drowns out everything else. Other uncategorized cookies are those that are being analyzed and have not been classified into a category as yet. December 2012 Turn the Low Subsonic filter? | DIYMobileAudio.com Car Stereo Forum EQ1 Gives a flat ground plane response to under 20 Hz, which will give great emphasis on the deepest bass in-room. 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 Thanks for reading, and as always, feel free to sound off in the comments below. That will be a pretty boomy system. After recording the entire LP and then running the exported AIFF file through ClickRepair, the next thing I do in Audacity is employ the Low Shelf filter set to 12 hz. and I have a light on my amp that turns red when clipping and if that happens I turn the gain down. 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 WebGain setting Buttons marked with and set gain of the amplifier. This category only includes cookies that ensures basic functionalities and security features of the website. If you have one we missed, let us know in the comments! December 2015 WebSetting subsonic filter Tech Support I have a 12-in ported subwoofer box, the box is tuned to 31.7. I remember watching my woofers move in and out (large excursions) without making a sound. Right you will have to port it lower, watch the excursion on low notes. Since the Hz setting on the subsonic filter is the start of a slope, not a cutoff, we want to set it higher than 20 Hz. So the question is. That means the safest setting for its subsonic filter is half an octave below whatever frequency the port is tuned to. WebSetting computer to higher frequency (352,8kHz or 384kHz) deactivate S/PDIF Out and allows to record in DSD128 format. SUBSONIC FILTERS # Highest grade materials used throughout. The Fora platform includes forum software by XenForo. Not only will your low-frequency sound be less distorted, but your expensive subs will also last much longer. For the crossover. Think of the filter as a slope, not an on-off switch. You could get a minidsp if you don't want to buy a new amp. For the crossover. If it's a ported box, set the subsonic about 5hZ below the tuning frequency. Delete. The best thing to do is have the sub have a range of frequency response curves to choose from, like SVS's Ultra subs or Hsu's subs. It's not always necessary but it really depends on the enclosure, subs, power, and what you listen to. of no electrical". (Optional) Get an app for your phone. Car Reviews Seriously considering the mindsp but I have a concern. As a very general rule of thumb, I usually set an infrasonic filter 1/3 octave below tuning frequency. Therefore, to get your subsonic filter setting, take your subwoofers tuned frequency and multiply it by 0.75. December 2018 Where I would part company from you is considering budget constraints. February 2017 Setting the record level . Especially on some ported subs. Intelligent Induction Lamp Review & Teardown. August 2015 First the subsonic filter. February 2012, All The Fora platform includes forum software by XenForo. EQ2 Half an octave above the EQ1 setting, so for example if on EQ1 the subwoofer has a +-3dB point of 16Hz, the EQ2 setting will have a +-3dB point of 24Hz. Bowers & Wilkins LCR 60 S3 Speaker with Kevlar woofers. 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.