ThirtyHz Posted November 28, 2012 Report Share Posted November 28, 2012 Hello all, I have a pretty funky setup at the moment, you might be scratching your head when you see some of the pictures, but that's beside the point. I was wondering if my port placement will cause the sub to unload at higher volumes? Also, how will I know if it does unload, any special sound I should listen for? I have been playing it (powered from a psu) and it seems to sound fine... Any input would be great, thanks. Link to comment Share on other sites More sharing options...
wmrcs Posted November 28, 2012 Report Share Posted November 28, 2012 I don't think the port placement is a problem.. If it unloads it's almost like a hollow flapping noise. That's the best way I can describe it haha E34 540iT/6 Link to comment Share on other sites More sharing options...
ThirtyHz Posted November 28, 2012 Author Report Share Posted November 28, 2012 Okay haha, thanks a bunch man. Its a temp setup till I get my hands on an E-12. Link to comment Share on other sites More sharing options...
wmrcs Posted November 28, 2012 Report Share Posted November 28, 2012 Fo' realz doe. E34 540iT/6 Link to comment Share on other sites More sharing options...
the_garynator Posted November 28, 2012 Report Share Posted November 28, 2012 another sound you may want to listen for is a clanking noise...if the sub unloads it can "bottom out"...in most cases subs are overhung which means that the coil will hit the back plate of the magnet before anything else limits it's movement. The clink you'd hear is the voice coil hitting the back plate. This is bad because it can damage the voicecoil significantly. This generally happens when pushing the sub hard at too low of a frequency (below the box's tuning frequency), although it could potentially happen at anytime the sub is overdriven. Current Build: Project Flexington: 157.6db @ 37hz Parallel 6th order walk through, DC Neo Elite 18s, 4 DC 5.0ks, JY Lithium, 12 banks of XS Caps Old Builds:150db and HAIRTRICKs from 2x 12" Power Acoustik Mofos (6th order blow through) ;<p>Roadmaster Wagon Build - DC LVL 6 M3, Kicker Warhorse ; Godzilla swapped 240sx ; 6th Order Bandpass Alpine Type R 12 ; Fully loaded DC Level 5 18" 240sx Link to comment Share on other sites More sharing options...
ThirtyHz Posted November 29, 2012 Author Report Share Posted November 29, 2012 another sound you may want to listen for is a clanking noise...if the sub unloads it can "bottom out"...in most cases subs are overhung which means that the coil will hit the back plate of the magnet before anything else limits it's movement. The clink you'd hear is the voice coil hitting the back plate. This is bad because it can damage the voicecoil significantly. This generally happens when pushing the sub hard at too low of a frequency (below the box's tuning frequency), although it could potentially happen at anytime the sub is overdriven. Alright, I'll keep an ear open. Today i ran a 15 Hz signal to it pretty much as far as it can go, and no bottoming out, and no unloading, so I guess its all good in the hood. haha Link to comment Share on other sites More sharing options...
wmrcs Posted November 29, 2012 Report Share Posted November 29, 2012 E34 540iT/6 Link to comment Share on other sites More sharing options...
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