troy Posted August 22, 2009 Report Share Posted August 22, 2009 ok just how is it done actually? i know you set a ss filter to the point so that it doesnt but i was just wondering how do you know its gonna do it and how do you know it is doing it. retarded build on the way..... 2000 bagged s10 2 hdc3 15s aq2200 aq4x90 stinger/knu wire optima batteries 220 amp alt fosgate hu/mids and highs Link to comment Share on other sites More sharing options...
1030tooled Posted August 22, 2009 Report Share Posted August 22, 2009 Maybe a dumb Question, but help me clear your question. You mean bottoming out the back of the magnet to the back of the box? OR You mean bottoming out the voice coil at deep excursion? If the box then make a ring to space out the sub. If the voice coil then you need a steep high pass filter. And you will know when you do it. It sound like a horrible engine running. If this is no help, ....I have no idea what your ? is,...........so I will need the help. Please explain! 93' Ford Aerostar Alpine head unit 4-5.25 MB Quarts 20-10" pyramids super Pro 1 Lanzar amp Link to comment Share on other sites More sharing options...
Guest Posted August 22, 2009 Report Share Posted August 22, 2009 ^^ huh? bottoming out a sub is where the voice coil hits the back of the motor. it is usually caused by playing material under the tuning of a box. thats what subsonic filters are for. bottoming out a sub sounds like a rapid popping/snapping noise Link to comment Share on other sites More sharing options...
1030tooled Posted August 22, 2009 Report Share Posted August 22, 2009 ^^^What? 93' Ford Aerostar Alpine head unit 4-5.25 MB Quarts 20-10" pyramids super Pro 1 Lanzar amp Link to comment Share on other sites More sharing options...
J00bles Posted August 22, 2009 Report Share Posted August 22, 2009 bottoming out subs is VERY bad. i blew a dc level 4 because i bottomed it out. just make certain that the subsonic control on your amplifier is set to the same number as your box tuning. (a box tuned to 34 hrz, needs a subsonic set to 34 hrz as well) **edit** its caused by the sub's over excursion. when you play a really low-low, it'll sound sloppy and that a good indication that bottoming out is close. you may also get "tinsel slap" on heavy notes if your subwoofer's tinsel leads are not sewn into the spider. it will sound like the cone is smacking into something that it really shouldnt be hitting.. 8 DC Level 4 M2 15s2 DC Audio 5ks26^2 clamshell tuned to 30hz9 Kinetik 1400sMechman externally reg'd 340 S seriesin a 99 Jeep Cherokee Click to see J00bles' Youtube Channel Link to comment Share on other sites More sharing options...
andym85 Posted August 22, 2009 Report Share Posted August 22, 2009 yea, bottoming out is when the coil hits the back plate of the motor. you will know its doing it, because it will be making mechanical noise...it will sound like the coil is hitting metal...lol..plain and simple you know its going to happen from experience....there are certain songs with stupid low notes...and when it happens once it probably wont happen again. just set ur ssf accordingly and u should be fine i likes me some audio stuff... Link to comment Share on other sites More sharing options...
CORNERVIEW Posted August 22, 2009 Report Share Posted August 22, 2009 aw damn ............ im hella confused edit: nevermind, thanks matt Link to comment Share on other sites More sharing options...
Boon Posted August 23, 2009 Report Share Posted August 23, 2009 Yeah sounds kinda like clattering... as mentioned above, you usually only hear it once, followed by a scratchy noise and some smoke coming out the port. Instant coil slinky in a lot of cases. Buy a DD and you'll never bottom out, you'll just blow cones 10.x volts fo' life! Link to comment Share on other sites More sharing options...
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