noobslayer77 Posted August 14, 2014 Report Share Posted August 14, 2014 Hey i was wondering if i could turn off the subsonic filter on my amp without destroying the subs. its set at 30 hz, and it cant be changed, only turned off. the box is tuned at 30 hz and the subs only have half their rated power going to them. I kind of want to see if it makes a difference in the low end. 2004 Jeep Liberty Limited 2 13w7s skar 3500 cnf mids (soon) xs batteries Link to comment Share on other sites More sharing options...
noobslayer77 Posted August 14, 2014 Author Report Share Posted August 14, 2014 will the low tuning help protect the subs? 2004 Jeep Liberty Limited 2 13w7s skar 3500 cnf mids (soon) xs batteries Link to comment Share on other sites More sharing options...
Krakin Posted August 14, 2014 Report Share Posted August 14, 2014 Sorry, first it's infrasonic. Subsonic means slower than the velocity of sound. Second, infrasonic filters are there to protect and are typically set around half an octave below the tuning frequency. Below tuning there is no acoustic protection from over excursion. Krakin's Home Dipole Project http://www.stevemeadedesigns.com/board/topic/186153-krakins-dipole-project-new-reciever-in-rockford-science/#entry2772370 Krakin, are you some sort of mad scientist? I would have replied earlier, but I was measuring the output of my amp with a yardstick . . . What you hear is not the air pressure variation in itself but what has drawn your attention in the two streams of superimposed air pressure variations at your eardrums An acoustic event has dimensions of Time, Tone, Loudness and Space Everyone learns to render the 3-dimensional localization of sound based on the individual shape of their ears, thus no formula can achieve a definite effect for every listener. Link to comment Share on other sites More sharing options...
Marquisboys Posted August 14, 2014 Report Share Posted August 14, 2014 I had mine off.. or all the way down. Just know the limits 2004 Grand MarquisAA Mayhem 18Crescendo 3500d6.5's AQ Pro AudioAQ Super TweetsImage Dynamics 6x9Soundqubed 125.4MB Quart 80.4144.2 db GONZO 2013 Chrysler 300S Granite Crystal Metallic Exterior Inferno Red Interior 5.7 HEMI AWD LMI Air Hammer Intake Corsa exhaust Custom Tune Link to comment Share on other sites More sharing options...
noobslayer77 Posted August 14, 2014 Author Report Share Posted August 14, 2014 *infrasonic excuse me lol. And i know what they are there for. But i typically don't play lower than 25 hz. and i would have set it around 23-25 if it was selectable. What im asking is will turning it off and playing 5 hz below tuning destroy my subs on half power. At that frequency the infrasonic filter, would it have been selectable wouldn't even have been engaged. I'm asking this because i'm considering getting a new amp with a selectable filter, and i'm wondering if this will allow me to play lower with more authority. But obviously i want some opinions before i try it. 2004 Jeep Liberty Limited 2 13w7s skar 3500 cnf mids (soon) xs batteries Link to comment Share on other sites More sharing options...
noobslayer77 Posted August 14, 2014 Author Report Share Posted August 14, 2014 can't wait to correct my friends on the subsonic infrasonic thing. 2004 Jeep Liberty Limited 2 13w7s skar 3500 cnf mids (soon) xs batteries Link to comment Share on other sites More sharing options...
Krakin Posted August 14, 2014 Report Share Posted August 14, 2014 There are some songs that have some hard low notes in there. Lets say that there is one note in the song that is below tuning and has a huge amplitude. Now think of sex. Both have one climax, but if you don't protect in sex you are gonna have a bad time. If you don't protect with you infrasonic filter it only takes one hard hit on the back plate or a note that makes the excursion just unlinear enough to cause mechanical damage. Krakin's Home Dipole Project http://www.stevemeadedesigns.com/board/topic/186153-krakins-dipole-project-new-reciever-in-rockford-science/#entry2772370 Krakin, are you some sort of mad scientist? I would have replied earlier, but I was measuring the output of my amp with a yardstick . . . What you hear is not the air pressure variation in itself but what has drawn your attention in the two streams of superimposed air pressure variations at your eardrums An acoustic event has dimensions of Time, Tone, Loudness and Space Everyone learns to render the 3-dimensional localization of sound based on the individual shape of their ears, thus no formula can achieve a definite effect for every listener. Link to comment Share on other sites More sharing options...
noobslayer77 Posted August 14, 2014 Author Report Share Posted August 14, 2014 excellent analogy. lol. would running a 25 hz test tone with and without the filter be a safer bet? and just adjust the volume slowly and watch the excursion? 2004 Jeep Liberty Limited 2 13w7s skar 3500 cnf mids (soon) xs batteries Link to comment Share on other sites More sharing options...
noobslayer77 Posted August 14, 2014 Author Report Share Posted August 14, 2014 im really just looking to see if the difference is noticeable. im not actually looking to play it or keep it on without the filter 2004 Jeep Liberty Limited 2 13w7s skar 3500 cnf mids (soon) xs batteries Link to comment Share on other sites More sharing options...
Joe X Posted August 14, 2014 Report Share Posted August 14, 2014 "Subsonic" until most manufacturers decide otherwise. It will draw current to amplify those low frequencies too. Link to comment Share on other sites More sharing options...
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