Mostar Posted March 10, 2009 Report Share Posted March 10, 2009 This is the same problem that i thought i had fixed by re adjusting the gain setting on my amp...Subs are D1 and they are wired in series parallel To a Sundown SAZ3000d. My box specs are L46'' X H23" X L26.5" Made out of 3/4" MDF. The port is 13"x13"x8.5". Here is a video of the problem i am having...the sub on the left is the one making the noise and it only does it on low notes. If any one has any input or ideas that will help me out please let me know... Thanks...I would take it to the guys at the local shop, but they don't seem to know anything and they act like they can't come out and take a look at anything with out a scheduled apt...I fuckin' hate Alaska! :mad: :mad: :mad: Quote '05 GMC Envoy H/U: PIONEER AVH P4300DVD Subs: ( SA-12's Amps: (2) SAZ3500d's MECHMAN 270A Alt and 5 Batteries with lots of 1/0 Link to comment Share on other sites More sharing options...
Team_DC-Derrick Posted March 10, 2009 Report Share Posted March 10, 2009 have you tried taking out the sub making the noise, and switching the wires to the other side? i mean if its wired on 1 side switch it? Quote The DC Integra 3 18s to 6 15 build log Team_DC-Derrick's Youtube Team DC Audio where theres a will theres a wall....... I just realized Steve has reach Voldemort status, over on JP's site he is the one who will not be named....."We dont speak his name over here, fearing it will destroy us" LOL not even in hush tones Link to comment Share on other sites More sharing options...
t-roy Posted March 10, 2009 Report Share Posted March 10, 2009 have you took the sub that isn't working out to check the wiring? or maybe can you look or feel though the port area? Quote Link to comment Share on other sites More sharing options...
t-roy Posted March 10, 2009 Report Share Posted March 10, 2009 like army guy said just do some testing and do the process of elimination. Quote Link to comment Share on other sites More sharing options...
Mostar Posted March 10, 2009 Author Report Share Posted March 10, 2009 have you tried taking out the sub making the noise, and switching the wires to the other side? i mean if its wired on 1 side switch it? I haven't tried that... Quote '05 GMC Envoy H/U: PIONEER AVH P4300DVD Subs: ( SA-12's Amps: (2) SAZ3500d's MECHMAN 270A Alt and 5 Batteries with lots of 1/0 Link to comment Share on other sites More sharing options...
Team_DC-Derrick Posted March 10, 2009 Report Share Posted March 10, 2009 let us know how it works out for you bro ! Quote The DC Integra 3 18s to 6 15 build log Team_DC-Derrick's Youtube Team DC Audio where theres a will theres a wall....... I just realized Steve has reach Voldemort status, over on JP's site he is the one who will not be named....."We dont speak his name over here, fearing it will destroy us" LOL not even in hush tones Link to comment Share on other sites More sharing options...
Mostar Posted March 10, 2009 Author Report Share Posted March 10, 2009 like army guy said just do some testing and do the process of elimination. Thanks... i also noticed that it appears that the cone on the one making the noise is positioned a little higher than the other one. Quote '05 GMC Envoy H/U: PIONEER AVH P4300DVD Subs: ( SA-12's Amps: (2) SAZ3500d's MECHMAN 270A Alt and 5 Batteries with lots of 1/0 Link to comment Share on other sites More sharing options...
Mostar Posted March 16, 2009 Author Report Share Posted March 16, 2009 well i finally got around to trouble shooting this problem a week later... 1. i pulled the subs out. 2. i ran new speaker wire 3. switched the subs from one side to the other. 4. switched the wires on the coils It is still doing it but i think i know what is going on. I think that when the lift gate on my truck is open there is a big decrease in pressure inside the box...witch is allowing the subs to bottom out on low notes. Also i determined that they are both doing it not just one. It is almost like running the subs free air when the back is opened up. They play just fine when it is closed. So i guess everything is okay since i don't ride around with the rear hatch up...Does this sound like a feasible answer to my problem? Quote '05 GMC Envoy H/U: PIONEER AVH P4300DVD Subs: ( SA-12's Amps: (2) SAZ3500d's MECHMAN 270A Alt and 5 Batteries with lots of 1/0 Link to comment Share on other sites More sharing options...
AI James Posted March 16, 2009 Report Share Posted March 16, 2009 told you that you should have placed the port in a different place, theres like no backpressure with it right there Quote Link to comment Share on other sites More sharing options...
E-Train Posted March 16, 2009 Report Share Posted March 16, 2009 Sounds like the voice coil is bottoming out on the motor, and like james said no backpressure so i guess its kinda like that sub is freeairing, damage will occur Quote 1997 4 Runner Alpine CDA-9886 4 Fi Audio X Series 12's 1 Crunch GP3000D Pro DC Power Inc. Alternator(Kickin out 15+ volts!) Link to comment Share on other sites More sharing options...
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