May 2015 When you purchase through links on our site, we may earn an affiliate commission, which supports our community. Feb 26, 2011. I do not have mine set at the moment, and I am afraid that if I do set it I will lose my lowest notes, as my understanding of the filter is that it rolls off everything below where it is set so as not to damage the drivers in a ported box. Each octave up is twice as many Hz as the previous one, and dividing any frequency by 2 takes it one octave lower. You're not going to blow up your car playing below tuning. Just don't be reckless with it. SSF @ 25hz is fine. It decreases the amplitude of those low notes that you feel more than you hear. These warps can produce frequencies well below 20Hz and can introduce distortion into your playback system. Help with speaker placement 5.1.2 or 7.1 or ??? 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. I cant find the SL100B Transistor, The short answer to your question is no. Think of the filter as a slope, not an on-off switch. My speakers have an in-room low extension -3dBs at 32 hz so I don't want to miss out on real bass reproduction. # Highest grade materials used throughout. 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. 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. 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. basically, if you tune the box higher, and/or you will gain some spl, but excursion increases below the roll-off. I have ported speakers; Ascend Acoustics Sierra 2 EX. 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). Doing this will enable you to February 2013 That means the safest setting for its subsonic filter is half an octave below whatever frequency the port is tuned to. 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. 11. 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. These cookies track visitors across websites and collect information to provide customized ads. As for the subsonic filter, Ive tried both settings and cant hear a difference. You are using an out of date browser. JavaScript is disabled. 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. 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. April 2012 June 2017 This power and flexibility is accessible via PC-GUI software and our innovative single-knob LCD control panel. Necessary cookies are absolutely essential for the website to function properly. If either of those is true, read on, and well get just a little bit into the weeds. This filter has a very sharp cutoff character. I'm actually very happy with it! Set the LPF at 60-80 Hz. December 2012 Ideal power. 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 January 2013 They're right- the answer is No. 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. According to the description, it, While learning about different types of vibration sensors for condition monitoring, I came across a cheap piezoelectric shock/tap/vibration, What is the point of reviewing a cheap timer module, especially if it is based on the ubiquitous, The Raspberry Pi Pico W is a microcontroller development platform that combines the RP2040 with a Wi-Fi controller, Wireless battery charging is showing up everywhere. Building a ported sub using an alpine type R 15inch driver. Weve already mentioned that the main mechanic these subsonic filters use is attenuation. What high end receivers are you talking about with a subsonic filter? And tuned @ 20Hz. April 2017 February 2015 EDIT 2: Ah, and you dont need your woofer connected to do that 8 Reply blockrocker 3 yr. ago Yes, do this. A subsonic filter is a component on your subwoofer that reduces the intensity of notes which come through at lower frequencies. AN ELITE CAFEMEDIA LIFESTYLE PUBLISHER. It filters out very low frequency content that can potentially send your subs to the moon. For a better experience, please enable JavaScript in your browser before proceeding. I'm writing to you to tell you about my experience with my subsonic filter. 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. 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 sub with my port had 111db at 15Hz and 116 at 20Hz. But opting out of some of these cookies may affect your browsing experience. Put on your favorite song and turn the volume up to your normal listening level. The Subsonic is now correctly set. So the question is. Technical specifications Pro-Ject Tube Box S2 March 2015 January 2019 Thanks for your advise on this topic. Is it possible it affects the highs. 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. Analytical cookies are used to understand how visitors interact with the website. Thanks! It can help your amp save power when the bass gets real low. Learn more OK, I'm convinced Show me the demo first Sealed enclosures work just like weve described. Possible settings are 40, 43, 50, 53, 60 and 63dB. 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. JavaScript is disabled. You can still turn on your subsonic even on a sealed box. 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). I rarely touch sub levels. January 2015 With all the detail weve gone into, its easy to forget that most of these changes arent audible to the human ear. While filtering is important, this isnt necessarily a dealbreaker; it all depends on what kind of music you listen to. 
"But this one goes up to 11"
. That could help explain the disparity. If 30hz seems too low, you can bring it up some. November 2014 Its the opposite of a low-pass filter, which only attenuates signals above a certain line. (are you certain the box is tuned to 30 hz?). Phase adjusting above will shift somewhat with frequency. March 2016 It will also help reduce low frequency rumble and sounds from the listening environment. How do you adjust a subsonic filter? When using bass-boost chance to burn subwoofer rises as clipping occurs much earlier. October 2014 How to set a subsonic filter on a subwoofer? All contents are Copyright 2023 by AspenCore, Inc. All Rights Reserved. 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. This eliminates the bizarre subsonic sine wave almost all LPs have. October 2020 The beat way is to do exactly what you are doing. Don't install suckage! The best thing to do is listen. The typical Tschebyscheff resonance of 0.1 dB does not cause any distortion. 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. I'm down at 60 Hz and found that with the music that I listen to it sounds much better. A subsonic filter is a component on your subwoofer that reduces the intensity of notes which come through at lower frequencies. 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). May 2012 You using an avr? Pro tip; Have a friend/wife/mom help adjusting the phase while you sit in your listening position. You're setting levels entirely by ear ? It is recommended to set up a very subsonic filter with a very steep slope (attention factor) to combat this issue., You can set the subsonic filter on your 1723 Series Subwoofers in the Crossover Menu and for the 1961 Subwoofers in the Setup Menu. That will be a pretty boomy system. You are correct in the presumption that subsonic filters provide a level of protection from over excursion. The best way is to do exactly what you are doing. June 2016 December 2014 First, you will need to So thanks for taking your time to explain to us relatively few people who care about such thing! If your subsonic filter is set to 40 Hz or 30 Hz, notes will still get through but will be much quieter. WebSetting subsonic filter Tech Support I have a 12-in ported subwoofer box, the box is tuned to 31.7. 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. 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. Even among seasoned audiophiles, subsonic filters are a topic guaranteed to sow confusion. 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. It will unload under tuning and xmax. when I run a movie I have to find the right setting because every movie sounds different. On/Off. June 2013 Wouldnt a sealed box INCREASE the power handling??? You have seen (and perhaps tried), Robotic collision sensors are crash protection devices that detect a crash before or during a collision. I adjust it because each movie has a different amount of bass so you have to set it up just right. 100-120Hz high pass. Or is there at least a subsonic limit to the LFE channel bandwidth? Fascinated by all sort of tools, Pete loves reading and writing about all the latest gadgets and accessories that hit the market. The current consumption is aound 5 mA. A forum community dedicated to home theater owners and enthusiasts. Its the opposite of a low-pass filter, which only attenuates signals above a certain line. Featured Image Credit: slightly_different, Pixabay, What do you get when you pit one top-tier blender against another? OK, so if the port tuning frequency is 40Hz then your subsonic should be set to 40Hz which is pretty high. Doesn't sound like it if you are constantly adjusting. VerticalScope Inc., 111 Peter Street, Suite 600, Toronto, Ontario, M5V 2H1, Canada. When simply playing records, I use my Sansui AU-517 integrated amps subsonic 16hz filter always. With my IB subs I run 15Hz SS, it hits 20 just fine but I do have to EQ it up with these subs. Tony. This helps avoid bad distortion since they cant handle deep bass. If it's sealed it can be opened up, low. The frequencies below the crossover are sent to the subwoofer. As a very general rule of thumb, I usually set an infrasonic filter 1/3 octave below tuning frequency. 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. Very common crossover frequency. If you have one we missed, let us know in the comments! 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. A subsonic filter is a component on your subwoofer that reduces the intensity of notes which come through at lower frequencies. 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 can you say? Somewhere from 50hz to 65hz is likely where you are going to want your crossover set. geolemon. I have mine inside of my phono stage which is a project audio tubebox ds. I keep them off if in a sealed You might try this: lCol = objNavigation.Where For medium large rooms and/or to suit your personal listening style, the EQ2 setting can be beneficial. 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. 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 Note that my April 2014 November 2018 Sign up to newsletter and stay in touch with us, Copyright 2015-2023 Arendal Sound - All rights reserved. This happens independent of the applied recording medium. It has very extensive dsp options and probably cheaper than selling your qsc amp and buying an inuke. It is adjustable 6dB/Oct or 12dB/Oct. However, you might be the kind of audiophile whos more into hard numbers, or you may want a hint on where to start. Setting the Subsonic Filter and Bass Boots. March 2013 JavaScript is disabled. My avr has very advanced room correction. To remove this unwanted low frequencies, subsonic filters like the circuit featured here is used. It You must log in or register to reply here. We recommend this setting for smaller rooms and/or to get a faster, more musical and punchy sounding bass. Regrettably, the motor is running at a constant", "What changes are required in order to feed audio instead of microphone", "Author's Note: More information about the AZDM01 turbidity sensor used in this project can be found", "i looked at some of the circuits at this site and found them to be http://www.klippel.de/download/Nonlin/Klippel_nonlinearity_poster.jpg, Advanced Forum Stats, Paid Registrations by. Is using the subsonic filter a must? WebGain setting Buttons marked with and set gain of the amplifier. So in this case the closest setting will be 3ms. Receive exclusive offers and promotions. June 2015 Below tuning the enclosure "unloads" the pressure in the enclosure and it no longer acts as a spring. 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. It has a cutoff frequency of 18 Hz. its an older pioneer AVR and yes it has a room eq setup feature with a mic. I wasn't able to find frequency response specs for these, but We also use third-party cookies that help us analyze and understand how you use this website. Turn the Low Webedited December 2003. Owner Stereo Integrity Co-owner Obsidian Car Audio Associate Sundown Audio Some people own amps with subsonic filter buttons that they never turn off for fear of breaking something. Piezoelectric Sensory Switch Module An Afterthought, Updated 555 Timer Relay Module A Quick Analysis. What I wanted to say is that amps sound the same. Anything above 80hz makes the subwoofer easy to locate in the soundstage and you don't want that. Weve now covered the purpose of a subsonic filter and how it works. Seriously considering the mindsp but I have a concern. EQ1 Gives a flat ground plane response to under 20 Hz, which will give great emphasis on the deepest bass in-room. So you want to delay the signal to the closest subwoofer by 1 meter (1 / 343 * 1000 = 2,915 ms). Yet its not a topic amp owners can blow off. 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 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. "On a long enough timeline, the survival rate of everyone drops to zero.". But now have a new car, this will take a while to figure out. Adjustable from 0-180 degrees. December 2021 A very difficult decision. 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. July 2012 its a high pass filter for your subwoofers. The subsonic filter should be set slightly below the tuning frequency of the port in your box. Not even close! Great advice with the test tone. I had my 6-channel amp's opamp and power supply upgraded to better quality parts / grades. Thanks for the responses, I guess I'll continue doing it by ear then. 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 March 2022 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. Now Available: Tech Talk Podcast with Scott Wilkinson, Episode 19 Click here for details. However, you may visit "Cookie Settings" to provide a controlled consent. I wasn't able to find frequency response specs for these, but starting your low pass filter at 80hz is a good place to start. PFM Subsonic Filter: The Epicenter Concert Series utilizes a PFM (Programmable Frequency Match) filter which will help with speaker control and amplifier power management. You also have the option to opt-out of these cookies. 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. so if the bass is up too high it drowns out everything else. 07-25-2005 at 10:34am. If you dont like to crank your volume up that far, you might never notice any difference in subsonic sounds. Most often, the very low frequencies create distorsions in music recording or reproduction. If your components will play lower efficiently then you can go lower than 80. September 2014 Massive output to 18hz ported vs output down to 10hz sealed but not as much output at 18hz and above. November 2013 For a better experience, please enable JavaScript in your browser before proceeding. Instead, the number you set the filter to represents the frequency at which it starts to reduce the intensity of the sound. 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. A ported sub can safely play about half an octave below its tuned frequency before theres a risk of damage. Any difference could cause noticeable phase shift in the output signal. In your case your filter goes to 35 so that's what you use. WebSecondly, a 30Hz tune would put a rule-of-thumb subsonic setting of 22.5Hz. They have adjustable crossovers that can be selected for various speakers. Ok. This category only includes cookies that ensures basic functionalities and security features of the website. 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. Ultimately, I agree with you that that is a very good approach. Selectable from 12 Hz to 31 Hz. Thanks for the replys. Learn more. Thats a great way to find that balance we talked about above. Your favorite music genres will push the limits of the low end. But not subsonic filter option. 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 This feature inverts the signal, which means the same as 180 degrees phase, however, this is true 180 degrees at all frequencies. If On is selected, then the Low Pass Filter will be disabled. I never run my sub very hard with movies otherwise the bass overpowers everything! I don't know what to say..to me 10Hz IS subsonic. 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". The Low Pass Frequency is adjustable from 30 Hz to 160 Hz in 1 Hz increments. Home Trials If not, its ported. 4. For the crossover. Magnepan, A SUBSONIC FILTER ISHIGHLY RECOMMENDEDIF YOU SPIN VINYL, USE PORTED SPEAKERS, AND WANT THE VERYBEST PERFORMANCE FROM YOUR ANALOG FRONT-END. VerticalScope Inc., 111 Peter Street, Suite 600, Toronto, Ontario, M5V 2H1, Canada. That is exactly what buyers looking at the Vitamix. Since you are tuned to 35hz, you can set the filter around 30hz to 35hz. Set it to about 20 Hz. February 2014 Its not important to understand exactly how theyre wired. 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. For Home Cinema use, where an AVR is used we recommend LPF Bypass On. November 2012 March 2017 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. Set it and listen. What should my subsonic be set at? Enjoy your next ride with your newly balanced bass track! (anthem arc) But I think I can only set the high pass as low as 20hz thus loosing anything below that.. Hi. It decreases the amplitude of those low notes that you feel more than you hear. Set the subsonic filter at about Fs or about 15% below the port tuning frequency (FO) whichever is higher. 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. Not only will your low-frequency sound be less distorted, but your expensive subs will also last much longer. These cookies do not store any personal information. 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? WebInstall the Subsonic server app where you keep your media. The push button turns on and off subsonic filter . 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. For visual learners, the video below illustrates how low frequencies can distort a subwoofers cone alignment without a filter. January 2016 The blue LED above the button is illuminated when its on. Update Privacy Preferences That one takes some listening to get dialed in. Therefore, to get your subsonic filter setting, take your subwoofers tuned frequency and multiply it by 0.75. The SQ turned out fantastic after some burn-in. make the port 6% longer should tune it a little lower. 5. so I find where it sounds perfect and leave it there. 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. Then I normalize the entire album and export the tracks as AAC. Delete. Where I would part company from you is considering budget constraints. 3 modes for sealed subwoofers, 6 modes for vented subwoofers as they can be used in vented or sealed mode. I was told 25-30 Hz but I am not totally sure. I never do anything close to that with my sub because I don't want to blow it. You set it just under where the mid bass speakers pick up. Others have adjusted theirs at multiple volumes and havent noticed any difference. This filter has a very sharp cutoff character. Electrodynamic "On a long enough timeline, the survival rate of everyone drops to zero." Your subsonic filter should be set at 30.12hz, which is the max free air response of the driver. It may not display this or other websites correctly. As a very general rule of thumb, I usually set an infrasonic filter 1/3 octave below tuning frequency. I have mine set slightly lower for my sealed box. The only thing you do need to know before we move on is that attenuation doesnt completely dampen sounds of a certain frequency. I have a TC Sounds LMS- Ultra 5400 18" subwoofer in a 7.3ft 3 ported enclosure after all displacements. Meters / Speed of sound (343 m/s in room temperature) * 1000 = time in ms. 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.