Phase adjusting above will shift somewhat with frequency. Your favorite music genres will push the limits of the low end. We recommend leaving the phase at 0 degrees when using an AV-Receiver/Processor with time alignment (speaker distance) feature. When I flipped the switch I could rarely see them move much at all. The sub moves just a little at times and that when I put the system at MAX. Well, with the box being not quite the right size for the driver, that's most likely why it never sounds quite right. 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. It has a cutoff frequency of 18 Hz. 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. For the crossover. Michael MiguestJames LuongJohn WheelerJean NantaisKevin Barrett, March 2023 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. It may not display this or other websites correctly. January 2013 If it is set to 30 Hz. (anthem arc) But I think I can only set the high pass as low as 20hz thus loosing anything below that.. Hi. April 2016 a power requirement! March 2017 You can also buy, sell, or trade your car audio gear with other forum members in our popular classifieds. It has a cutoff frequency of 18 Hz. Possible settings are 40, 43, 50, 53, 60 and 63dB. I'm actually very happy with it! What vehicle is this? Receive exclusive offers and promotions. For Home Cinema use, where an AVR is used we recommend LPF Bypass On. Copy Comment URL. I flipped it on and off multiple times just to confirm my observations. Tbone, the JBL amp has it's own low-pass filter built into the amp. 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. I also recommend putting a jumper in the subsonic filter rows. March 2012 November 2012 July 2016 First the subsonic filter. However, you may visit "Cookie Settings" to provide a controlled consent. All rights reserved. Thank you for this Charles! But now have a new car, this will take a while to figure out. A good point to set it is 25hz. 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. So it's so hard to tell if it's better. Setting the record level . What high end receivers are you talking about with a subsonic filter? Weve already mentioned that the main mechanic these subsonic filters use is attenuation. If your components will play lower efficiently then you can go lower than 80. 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. Anything above 80hz makes the subwoofer easy to locate in the soundstage and you don't want that. For music setups the phase needs to be adjusted so the subwoofer blends with the front speakers. So I decided to search the Internet and found your write-up confirming my experience. it will attempt to quieten the notes that are below that frequency. August 2012 Massive output to 18hz ported vs output down to 10hz sealed but not as much output at 18hz and above. 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 You also have the option to opt-out of these cookies. Where I would part company from you is considering budget constraints. Somewhere from 50hz to 65hz is likely where you are going to want your crossover set. March 2022 It is easy to set all you need are test tones and a multi-meter. Are you using any kind of EQ on it or have you at least taken any sweeps of it in your room? Use WinISD to help you make proper sub and amp selections according to your listening tastes. Pro tip; Have a friend/wife/mom help adjusting the phase while you sit in your listening position. http://www.klippel.de/download/Nonlin/Klippel_nonlinearity_poster.jpg, Advanced Forum Stats, Paid Registrations by. 100-120Hz high pass. You are using an out of date browser. Selected value is indicated by LED. JavaScript is disabled. You must log in or register to reply here. The maximum useful frequency is 3 MHz. 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. Turn your Subsonic Filter down to 10Hz In your case your filter goes to 35 so that's what you use. August 2014 This filter has a very sharp cutoff character. That's the simple answer. In off mode the amplifier has an internal subsonic filter at 10 Hz to prevent instabilities in the power supply. On/Off. February 2023 WebTurn your Subsonic Filter down to 10Hz then slowly turn up the filter frequency until you hear it take effect on your sub bass. The only thing you do need to know before we move on is that attenuation doesnt completely dampen sounds of a certain frequency. The current consumption is aound 5 mA. "Let our rigorous testing and reviews be your guidelines to A/V equipment not marketing slogans", Get our latest product reviews and AV stories emailed to you weekly. 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. It was set to Off so I flipped it to On and the woofer, while slightly moving, was moving dramatically less than when the setting is Off. While filtering is important, this isnt necessarily a dealbreaker; it all depends on what kind of music you listen to. You can select the Since its tuned at 20hz will that act as a subsonic filter for 10 to 15hz or not at all? Too many deep bass thuds can tax the limits of your woofer and cause it to wear out much faster than it otherwise would. Not only will your low-frequency sound be less distorted, but your expensive subs will also last much longer. My speakers have an in-room low extension -3dBs at 32 hz so I don't want to miss out on real bass reproduction. My sub with my port had 111db at 15Hz and 116 at 20Hz. It also has a balance control knob which is uncommon for a phono preamp. Now Available: Tech Talk Podcast with Scott Wilkinson, Episode 19. A collision, Turbidity is considered a good measure of the quality of water as it is a measurement of how. I'm down at 60 Hz and found that with the music that I listen to it sounds much better. What should my subsonic be set at? April 2012 Subsonic . 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. Learn more OK, I'm convinced Show me the demo first This eliminates the bizarre subsonic sine wave almost all LPs have. Play some music with a steady bass beat, and when you hear the most amount of bass, the phase is correctly adjusted. Yes, every single recording is different, but adjusting to each film should still not be necessary (I agree that it isn't perfect all the time). So, if its tuned to 40 Hz, set the filter knob to 30 Hz. It decreases the amplitude of those low notes that you feel more than you hear. I feel like with it on it gives a little less clarity and affects the highs a little less air,space. This happens independent of the applied recording medium. 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. March 2014 when I run a movie I have to find the right setting because every movie sounds different. 2-way speaker systems. If there was such a receiver with this subsonic filter built in they would be using it. Technical specifications Pro-Ject Tube Box S2 It is very important that the capacitors C1, C2, C4, C5 and C7 are of exactly the same values in both channels. Your approach to adjusting your subsonic filter depends most heavily on whether your subwoofer is set in a sealed or ported enclosure. And tuned @ 20Hz. Is the hole for the speaker the only hole? Show more Show The Fora platform includes forum software by XenForo. 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. Put on your favorite song and turn the volume up to your normal listening level. OK, so if the port tuning frequency is 40Hz then your subsonic should be set to 40Hz which is pretty high. geolemon. 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. VerticalScope Inc., 111 Peter Street, Suite 600, Toronto, Ontario, M5V 2H1, Canada. Now Available: Tech Talk Podcast with Scott Wilkinson, Episode 19 Click here for details. October 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 Originally a subsonic filter was designed to catch recording errors and frequencies below 20hz hence "subsonic" that could possibly damage your subs. | House Grail The low pass can start anywhere above the low pass frequency of the 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". Over the years, he has developed a keen interest in a wide variety of DIY projects around the home. The Fora platform includes forum software by XenForo. Resolution was greatly improved with excellent transparency. 4. Turn the Low Not a 3" round port. It's not always necessary but it really depends on the enclosure, subs, power, and what you listen to. A subsonic filter is a component on your subwoofer that reduces the intensity of notes which come through at lower frequencies. My friend always says never use equilisers or add something in the chain of audio. That will be a pretty boomy system. Help with speaker placement 5.1.2 or 7.1 or ??? Your subsonic filter should be set at 30.12hz, which is the max free air response of the driver. When you purchase through links on our site, we may earn an affiliate commission, which supports our community. 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. Low subsonic frequencies, especially 20 Hz and below, damage the structure, so we want to attenuate them as much as we can. It decreases the amplitude of those low notes that you feel more than you hear. Subsonic Filter & Balance This preamp has a subsonic filter which can help make older records with more noise sound better. Subsonic its the same high-pass filter (HPF) on the sub amplifiers (often on monoblocks) cuts off infrasound. March 2013 So you want to delay the signal to the closest subwoofer by 1 meter (1 / 343 * 1000 = 2,915 ms). July 2012 For stereo users you may leave this setting Off, so you can adjust the Low Pass Filter under the next step. Come join the discussion about capacitors, amplifiers, subwoofers, marine and automotive audio, troubleshooting, and more! August 2013 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 What is this? If it's a ported box, set the subsonic about 5hZ below the tuning frequency. JavaScript is disabled. I listen to vinyl on a Technics 1710 turntable. Its the opposite of a low-pass filter, which only attenuates signals above a certain line. 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). Slowly turn the bass boost until a distortion appears then dial it back to a clear sound. "Maybe you could further investigate programming this module through its serial port. All contents are Copyright 2023 by AspenCore, Inc. All Rights Reserved. Sealed enclosures work just like weve described. Meters / Speed of sound (343 m/s in room temperature) * 1000 = time in ms. Note that my February 2012, All Analytical cookies are used to understand how visitors interact with the website. If you are trying to find 65hz, just start cutting things in half. The blue LED above the button is illuminated when its on. 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. If it's ported you set it 1/2 octave below the boxes tuning. Doesn't sound like it if you are constantly adjusting. 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 have seen (and perhaps tried), Robotic collision sensors are crash protection devices that detect a crash before or during a collision. 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:- How to set a subsonic filter on a subwoofer? The best thing to do is listen. 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. Ideal power. I remember watching my woofers move in and out (large excursions) without making a sound. Join the community today and get started. 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. It will also help reduce low frequency rumble and sounds from the listening environment. For movies this can be especially appealing. My remaining question is should I leave this setting on while either listening to CD's or watching TV/movies? 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. Use a browser on any computer to play music and movies. Selectable from 12 Hz to 31 Hz. 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 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. January 2016 "On a long enough timeline, the survival rate of everyone drops to zero.". That means the safest setting for its subsonic filter is half an octave below whatever frequency the port is tuned to. Even among seasoned audiophiles, subsonic filters are a topic guaranteed to sow confusion. House Grail is reader-supported. I have a totally restored Nikko Alpha II amp and a Nikko Beta 20 Pre Amp. May 2016 This morning, I looked at my setting on the pre amp and saw a lever for On Off "Subsonic Fil". In your case the 10w6 I wouldnt go lower then 26-28hz on the test tone. (Optional) Get an app for your phone. Feb 26, 2011.