20-30Hz high pass. August 2020 These cookies do not store any personal information. You must log in or register to reply here. The tuning frequency acts as a second high-pass barrier, but it does not replace the function of a subsonic filter. 1,773 posts. This morning, I looked at my setting on the pre amp and saw a lever for On Off "Subsonic Fil". Any help on this is greately appreciated. 2. February 2014 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 March 2017 April 2022 Its tuned at 20hz. Then adjust it back up until the bass notes tighten up again. With all the detail weve gone into, its easy to forget that most of these changes arent audible to the human ear. If you have a ported box I would definatley keep the subsonic at 30 Hz. Home Trials That will be a pretty boomy system. The push button turns on and off subsonic filter . A good point to set it is 25hz. Sign up to newsletter and stay in touch with us, Copyright 2015-2023 Arendal Sound - All rights reserved. Each octave up is twice as many Hz as the previous one, and dividing any frequency by 2 takes it one octave lower. So you want to delay the signal to the closest subwoofer by 1 meter (1 / 343 * 1000 = 2,915 ms). Receive exclusive offers and promotions. If 30hz seems too low, you can bring it up some. 4. Message User. September 2014 March 2012 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". you can build the box so that it does not happen. Each octave up is twice as many Hz as the previous one, and dividing any frequency by 2 takes it one octave lower. WebComplete with multiple DSP functions including 7-band PEQ, LPF, phase, subsonic filter, limiter, delay, and HPF the SPA250DSP gives you the ultimate control to fine tune your audio system. If you want a little less rolloff, go with an 18 or 12db. A forum community dedicated to home theater owners and enthusiasts. # Low friction, completely stable dual pivot bearing design for vertical movement. Your favorite music genres will push the limits of the low end. Electronic synthesization can be murderous on speakers if they "On a long enough timeline, the survival rate of everyone drops to zero.". A collision, Turbidity is considered a good measure of the quality of water as it is a measurement of how. April 2016 Technical & Advanced Car Audio Discussion. Pioneer 880PRS~boston comps/alpine coax on Kappa 4 Z~back to Alpine mrd-m500 v12 on pyle 15s IB. My remaining question is should I leave this setting on while either listening to CD's or watching TV/movies? What vehicle is this? You should set the filter at 20Hz, you can set it a tad higher, like 22-25, if you would like. And what's your buddy's vehicle? Our Q&A covers all the big questions you might have about subsonic filters. I tend to spend more time up front getting it where I think it is good, by testing like you do, with a variety of music and movies and adjust for probably a few weeks until I get something that suits my needs. 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 Some people own amps with subsonic filter buttons that they never turn off for fear of breaking something. A subsonic filter is mostly used in low frequency technology. 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. 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. Copyright 2023 House Grail. The subsonic filter is actually an active Tschebyscheff high pass filter of the fifth order. 11. Or is there at least a subsonic limit to the LFE channel bandwidth? Phase adjusting above will shift somewhat with frequency. Were right there with you. Set it and listen. (frequency always indicated by corresponding LEDs). We recommend this setting for smaller rooms and/or to get a faster, more musical and punchy sounding bass. Is using the subsonic filter a must? JavaScript is disabled. In your case your filter goes to 35 so that's what you use. After listening to a few songs I realized that it wasn't getting as low as it should considering my box is tuned to 30Hz and my xover is set to 100Hz so I turned down the SS filter a little more and it sounded alot better. 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. A subsonic filter is a component on your subwoofer that reduces the intensity of notes which come through at lower frequencies. Ok I have the new 10w6v3 in jl audios ported square box and it fkn pounds but I just need to figure out how to set the sub to get best output. Doesn't sound like it if you are constantly adjusting. Resolution was greatly improved with excellent transparency. Weve now covered the purpose of a subsonic filter and how it works. No band-aid, a subsonic filter is essential if you're using a good subwoofer -- or your main speakers extend really low -- and you're trying to play vinyl. January 2015 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. WebSetting up a subsonic filter requires you to determine the type of filter being used, the frequencies that need to be filtered, and the power rating. The Fora platform includes forum software by XenForo. It will also help reduce low frequency rumble and sounds from the listening environment. Now, it gets a little more complicated. Can you name them? Since its tuned at 20hz will that act as a subsonic filter for 10 to 15hz or not at all? So, if its tuned to 40 Hz, set the filter knob to 30 Hz. I feel like with it on it gives a little less clarity and affects the highs a little less air,space. We recommend measuring the distance to the subwoofer furthest away and adding delay to the remaining subwoofer(s) so that their delay is equal to the difference in distance between it and the furthest away subwoofer. # Highest grade materials used throughout. When you purchase through links on our site, we may earn an affiliate commission, which supports our community. December 2013 It's at 20hz. 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. November 2012 The phase shift is neglegible. It October 2020 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". You'll find everything you want to know about car audio and get installation help, tips and great deals on your car stereo projects. The Subsonic filter slope means at which rate the frequencies should be tapering off, from the frequency point chosen. Advertisement cookies are used to provide visitors with relevant ads and marketing campaigns. They're right- the answer is No. There was a lot of drone in that 60-80 Hz range. Check the level of each sub independently by turning off all of the other subs not under test. 07-25-2005 at 10:34am. In off mode the amplifier has an If youre a true bass-head, you might be incensed at the idea that youd want to cut out subsonic frequencies. August 2013 It is easy to set all you need are test tones and a multi-meter. 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. All contents are Copyright 2023 by AspenCore, Inc. All Rights Reserved. Join the community today and get started. February 2017 It decreases the amplitude of those low notes you feel more than you hear. Right you will have to port it lower, watch the excursion on low notes. Wouldnt a sealed box INCREASE the power handling??? CarAudio.com is the oldest and largest car audio forum community, since 2000. Thats where all the bone-shaking, window-rattling fun is! 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. When you purchase through links on our site, we may earn an affiliate commission, which supports our community. I have a sine sweep but have nothing to record the frequencty response and no eq either. It has a cutoff frequency of 18 Hz. Use WinISD to help you make proper sub and amp selections according to your listening tastes. That could help explain the disparity. 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 usually just try to play the lowest hitting song i can find or some sine waves and turn it up as loud as i would have it then adjust it so it doesn't bottom out. Play some music with a steady bass beat, and when you hear the most amount of bass, the phase is correctly adjusted. The current consumption is aound 5 mA. I remember watching my woofers move in and out (large excursions) without making a sound. 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. December 2016 Therefore, to get your subsonic filter setting, take your subwoofers tuned frequency and multiply it by 0.75. February 2023 Anything above 80hz makes the subwoofer easy to locate in the soundstage and you don't want that. April 2017 It decreases the amplitude of those low notes that you feel more than you hear. 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? December 2015 2-way speaker systems. The hertz scale is logarithmic. EDIT 2: Ah, and you dont need your woofer connected to do that 8 Reply blockrocker 3 yr. ago Yes, do this. For visual learners, the video below illustrates how low frequencies can distort a subwoofers cone alignment without a filter. February 2012, All 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. Set the subsonic filter at about Fs or about 15% below the port tuning frequency (FO) whichever is higher. Selectable subsonic filter settings, that will filter away the deepest frequencies. WebTurn your Subsonic Filter down to 10Hz then slowly turn up the filter frequency until you hear it take effect on your sub bass. Since its tuned at 20hz will that act as a subsonic filter for 10 to 15hz or not at all? You can select the Other uncategorized cookies are those that are being analyzed and have not been classified into a category as yet. We recommend this setting for larger rooms. Just make sure to set the xover on the deck before you turn the xover on the amp to the highest Hz. VerticalScope Inc., 111 Peter Street, Suite 600, Toronto, Ontario, M5V 2H1, Canada. (are you certain the box is tuned to 30 hz?). March 2014 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. A subsonic filter is a component on your subwoofer that reduces the intensity of notes which come through at lower frequencies. You are correct in the presumption that subsonic filters provide a level of protection from over excursion. You can also buy, sell, or trade your car audio gear with other forum members in our popular classifieds. 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. Selected value is indicated by LED. I had my 6-channel amp's opamp and power supply upgraded to better quality parts / grades. 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. Feb 26, 2011. 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 I'm down at 60 Hz and found that with the music that I listen to it sounds much better. Seriously considering the mindsp but I have a concern. WebSetting subsonic filter Tech Support I have a 12-in ported subwoofer box, the box is tuned to 31.7. 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. 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. Check the level of each sub independently by turning off all of the other subs not under test. As a very general rule of thumb, I usually set an infrasonic filter 1/3 octave below tuning frequency. http://www.klippel.de/download/Nonlin/Klippel_nonlinearity_poster.jpg, Advanced Forum Stats, Paid Registrations by. Check out the MTX Audio THUNDER1000.1 Thunder Series Car Amplifier for a great amp with a subsonic filter. If you're looking for extreme protection of the sub, then the higher slope (24) is better. Setting the Subsonic Filter and Bass Boots. These cookies will be stored in your browser only with your consent. 3 modes for sealed subwoofers, 6 modes for vented subwoofers as they can be used in vented or sealed mode. The subsonic filter dampens all frequencies below where you set it so as not to unload your subs if you play a frequency below the port tuning. I have since added some more absorption to help counter a 60Hz suckout, (fiberglass batts under some end-tables) but nothing else. Some bass units on the market dont have subsonic filters built in. As only frequencies Your subsonic filter should be set at 30.12hz, which is the max free air response of the driver. (Optional) Get an app for your phone. Especially on some ported subs. Yet its not a topic amp owners can blow off. 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 This feature comes in handy when you have several subwoofers in the setup and want to combine them on a single output from your source so that they have the same delay. It is adjustable 6dB/Oct or 12dB/Oct. Not even close! make the port 6% longer should tune it a little lower. Sealed enclosures work just like weve described. However, you may visit "Cookie Settings" to provide a controlled consent. April 2014 AN ELITE CAFEMEDIA LIFESTYLE PUBLISHER. To remove this unwanted low frequencies, subsonic filters like the circuit featured here is used. Adjustable from 0 to 50ms in 0.25ms increments. Technical specifications Pro-Ject Tube Box S2 other than a high pass filter set to 80hz. I think this is a large generalization as every install(box, subs, power level, design, vehicle, etc) is different. It's one of those "rule of thum A round port is 3" x 3". Its not important to understand exactly how theyre wired. Hey everyone, Been a long time since I ran some sweeps of the system, last time was to check the seat to seat uniformity I achieved with multiple subs. September 2013 Massive output to 18hz ported vs output down to 10hz sealed but not as much output at 18hz and above. Too many subsonic notes can still damage your subwoofer. I got a couple of anticollision car door warning lights! I have a TC Sounds LMS- Ultra 5400 18" subwoofer in a 7.3ft 3 ported enclosure after all displacements. Feet / Speed of sound (1125 f/s in room temperature) * 1000 = time in ms. 3.5kHz high pass (tweeter) & 250-500Hz high pass (midrange) Subwoofer subsonic filter. 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. House Grail is reader-supported. The subsonic filter is a High Pass crossover. May 2015 Subsonic Filter & Balance This preamp has a subsonic filter which can help make older records with more noise sound better. For a better experience, please enable JavaScript in your browser before proceeding. For medium large rooms and/or to suit your personal listening style, the EQ2 setting can be beneficial. EQ1 Gives a flat ground plane response to under 20 Hz, which will give great emphasis on the deepest bass in-room. Anything below that setting is attenuated (made quieter). Tbone, the JBL amp has it's own low-pass filter built into the amp. 4. But if you understand how to adjust your subsonic filter and practice doing it right, you might reap some big rewards. 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. I wasn't able to find frequency response specs for these, but In off mode the amplifier has an internal subsonic filter at 10 Hz to prevent instabilities in the power supply. Were here to help. His other interests include astronomy, hiking, and fishing. January 2016 Ok. Sign up to newsletter and stay in touch with us, Copyright 2015-2023 Arendal Sound - All rights reserved, 5% Ambassador refund for existing Ambassadors. 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. JavaScript is disabled. What should my subsonic be set at? so if the bass is up too high it drowns out everything else. November 2013 If it is set to 30 Hz. These cookies help provide information on metrics the number of visitors, bounce rate, traffic source, etc. (anthem arc) But I think I can only set the high pass as low as 20hz thus loosing anything below that.. October 2012 JavaScript is disabled. WebInstall the Subsonic server app where you keep your media. As a very general rule of thumb, I usually set an infrasonic filter 1/3 octave below tuning frequency. 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. Update Privacy Preferences 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. What can you say? Pro tip; Have a friend/wife/mom help adjusting the phase while you sit in your listening position. September 2012 Building a ported sub using an alpine type R 15inch driver. This discussion. December 2018 bad contacts- main source of miracles in electricity. Not a 3" round port. 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.