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January 2016 Are you using any kind of EQ on it or have you at least taken any sweeps of it in your room? 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. basically, if you tune the box higher, and/or you will gain some spl, but excursion increases below the roll-off. October 2020 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 an older pioneer AVR and yes it has a room eq setup feature with a mic. The typical Tschebyscheff resonance of 0.1 dB does not cause any distortion. With my IB subs I run 15Hz SS, it hits 20 just fine but I do have to EQ it up with these subs. We also use third-party cookies that help us analyze and understand how you use this website. April 2022 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. CarAudio.com is the oldest and largest car audio forum community, since 2000. December 2021 January 2023 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. 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 My remaining question is should I leave this setting on while either listening to CD's or watching TV/movies? Now, it gets a little more complicated. For a better experience, please enable JavaScript in your browser before proceeding. 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 Necessary cookies are absolutely essential for the website to function properly. Well, with the box being not quite the right size for the driver, that's most likely why it never sounds quite right. 3kHz to 3.5KHz. Seriously considering the mindsp but I have a concern. July 2016 Setting the Subsonic Filter and Bass Boots. Set the LPF at 60-80 Hz. A subsonic filter is a component on your subwoofer that reduces the intensity of notes which come through at lower frequencies. When I flipped the switch I could rarely see them move much at all. JavaScript is disabled. 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. If the circuit is applied to a stereo unit, build an exact duplicate for the other channel. 2. September 2013 You must log in or register to reply here. It decreases the amplitude of those low notes you feel more than you hear. Electronic synthesization can be murderous on speakers if they I understand that high end gear might contain a subsonic filter option etc.. when I run a movie I have to find the right setting because every movie sounds different. 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. geolemon. Thanks for reading, and as always, feel free to sound off in the comments below. October 2013 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. 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. For a better experience, please enable JavaScript in your browser before proceeding. Below tuning the enclosure "unloads" the pressure in the enclosure and it no longer acts as a spring. March 2014 April 2015 February 2023 AN ELITE CAFEMEDIA LIFESTYLE PUBLISHER. And tuned @ 20Hz. For a better experience, please enable JavaScript in your browser before proceeding. Then adjust it back up until the bass notes tighten up again. Most all multichannel receivers have bass management. March 2016 I don't know what to say..to me 10Hz IS subsonic. November 2015 Now Available: Tech Talk Podcast with Scott Wilkinson, Episode 19. Your one stop shop for all Trailblazer Suspension/Wheels. A subsonic filter is a component on your subwoofer that reduces the intensity of notes which come through at lower frequencies. Even among seasoned audiophiles, subsonic filters are a topic guaranteed to sow confusion. so I find where it sounds perfect and leave it there. I have mine set slightly lower for my sealed box. May 2012 The subsonic filter is actually an active Tschebyscheff high pass filter of the fifth order. http://www.realmofexcursion.com/downloads.htm, System Design: Help Me Choose Equipment For My Car. The subsonic filter should be set slightly below the tuning frequency of the port in your box. Check the level of each sub independently by turning off all of the other subs not under test. Use WinISD to help you make proper sub and amp selections according to your listening tastes. August 2013 Selected value is indicated by LED. January 2015 It This morning, I looked at my setting on the pre amp and saw a lever for On Off "Subsonic Fil". I had my 6-channel amp's opamp and power supply upgraded to better quality parts / grades. These cookies will be stored in your browser only with your consent. The value you filter against needs to be the Property Name, not the database column name. 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. For the crossover. 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. My speakers have an in-room low extension -3dBs at 32 hz so I don't want to miss out on real bass reproduction. Your subsonic filter should be set at 30.12hz, which is the max free air response of the driver. This happens independent of the applied recording medium. 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? (anthem arc) But I think I can only set the high pass as low as 20hz thus loosing anything below that.. Hi. Subsonic covers the low end and will be set according to the subs enclosure. So thanks for taking your time to explain to us relatively few people who care about such thing! of no electrical". The Subsonic filter slope means at which rate the frequencies should be tapering off, from the frequency point chosen. Resolution was greatly improved with excellent transparency. 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". 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. Possible settings are 40, 43, 50, 53, 60 and 63dB. Adjustable from 0-180 degrees. His other interests include astronomy, hiking, and fishing. My avr has very advanced room correction. can I use this circuit to generate a tremolo effect? Now Available: Tech Talk Podcast with Scott Wilkinson, Episode 19 Click here for details. Advertisement cookies are used to provide visitors with relevant ads and marketing campaigns. The maximum useful frequency is 3 MHz. I actually go into the movie if its an action movie and set the bass to match some explosions and then watch the movie so I don't have to change it during the movie. Doesn't sound like it if you are constantly adjusting. 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. A forum community dedicated to home theater owners and enthusiasts. Turn your Subsonic Filter down to 10Hz Where I would part company from you is considering budget constraints. For example, If your subsonic filter is set to 40 Hz, 30 Hz notes will still get through but will be much quieter. If either of those is true, read on, and well get just a little bit into the weeds. Can you name them? I cant find the SL100B Transistor, If youre a true bass-head, you might be incensed at the idea that youd want to cut out subsonic frequencies. 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. You could get a minidsp if you don't want to buy a new amp. 11. It has a cutoff frequency of 18 Hz. You are correct in the presumption that subsonic filters provide a level of protection from over excursion. Let the user decide what sounds best to them. Note that my 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. September 2012 If you have a ported box I would definatley keep the subsonic at 30 Hz. Great advice with the test tone. All rights reserved. All contents are Copyright 2023 by AspenCore, Inc. All Rights Reserved. I never do anything close to that with my sub because I don't want to blow it. WebTurn your Subsonic Filter down to 10Hz then slowly turn up the filter frequency until you hear it take effect on your sub bass. First the subsonic filter. These cookies help provide information on metrics the number of visitors, bounce rate, traffic source, etc. Frequencies blow 10 Hz are attenuated by more than 35 dB. So in this case the closest setting will be 3ms. 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. Home Trials A forum community dedicated to all mobile audio enthusiasts. 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". We use cookies on our website to give you the most relevant experience by remembering your preferences and repeat visits. 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. 3 modes for sealed subwoofers, 6 modes for vented subwoofers as they can be used in vented or sealed mode. You are using an out of date browser. It also has a balance control knob which is uncommon for a phono preamp. 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).