BFF Larry Posted December 28, 2011 Report Share Posted December 28, 2011 Well, I have pretty bad luck. I think I have coil rub in my New level 5. I push down dead center and I get no rub, but if I move just a fraction of a centimeter, I can feel/ hear rub... Subs are D1. Both coils read 1.0 - 1.1, but changes once in a while. On my other sub I think I blew has some coil rub only when you push lightly in the middle, has both coils reading 1.0 - 1.1 The funny thing is that it doesn't have any coil rub when pushing down evenly on the sides but has some rub periodically. Im SOL right now. Its hard to tell if the subs are in need of a recone or am I just imagining things. I have a vid of the used sub and trying to diagnose it. Help me please SMD. Vid of used sub, not the new one. Quote Team Clearly Louder (MECA)Team DC Audio ++* SELLING the CACTUS SOUNDS K12 for $1550 shipped *++ HMU!!! 3 flips. nollie flips. big flips. hardflips. - steez Youtube Channel My Build Log 95 Bonneville SSE - WALLED/4th Order - ~30 cubes - *thanks LoganBerry, CortezDVT, Cj18, SuperCharged DC, Ryan-RAM Designs,LoudNLow931* Link to comment Share on other sites More sharing options...
LoudNLow931 Posted December 28, 2011 Report Share Posted December 28, 2011 (edited) If its rubbing its most likely blown, Both my dual 1s sit in about the same ohm area, And i believe the ohm load will always change when you move the coil. Edited December 28, 2011 by LoudNLow931 Quote 2008 Dodge Ram 2500 6.7l Cummins 4 FT1s C1600.2 8 PWX 8s ONX2.100 Audio Technix Wiring & Sound Deadener My Youtube Feedback Link to comment Share on other sites More sharing options...
AA98hoe Posted December 28, 2011 Report Share Posted December 28, 2011 My xls did the same thing.... as long as it plays don't worry about it... it could be the former is dimpled slightley and hitting the pole.... how much power are you running to them and what size enclosure.... over excursion can dimple former Quote TEAM DC AUDIO VEHICLE:98 chevy tahoe 2wd 3-4 drop HEADUNIT:alpine 9886 PREAMP:arcaudio FRONT STAGE:4-6 1/2s selinium,DD component set and 4-selinium tweeters in each door KICKPANELS:jl audio 5 1/4 REAR DOORS: dd components 6 1/2s HIGHS AMPS:zapco 750.2 on front doors,zapco an another 750.2 on kicks and rear doors SUBS:4-ascendant audio 18s with 5 spiders in a custom box built by KINGSUV SUB AMP: 2-dc7.5s ALTERNATORS: 3-mechmans 1- 425comp, 1-smd spec350, 1-270 with adj voltage harness on custom dc bracket WIRE:10-runs 0g front to back BATTERIES:6-d1400s TL results:157.1 at 38hz and 156.8 at headrest score @37hz. STATE AND NATIONAL RECORD IN MECA S5. Link to comment Share on other sites More sharing options...
POPLERO Posted December 28, 2011 Report Share Posted December 28, 2011 I have similar prob. It was on an re sx10. If you push on dead center no rubb, if you go in any direction slightly then there is coil rubb.. but it plays and hits like nothing wrong. Only thing I could think of was, I bought this sub from a friend who made his own box for it and it was like less than 1^3ft. and had some jimmie riggd pvc port to no specs.. maybe bad air space/tuning caused it?!? Quote 2008 TBSS Black Granite Alpine CDA-117 Clarion EQS746 AudioQue Supertweets @ dash Alpine DDT-s30 @ b pillars Alpine SPR-60c @ front doors Alpine SPR-60 @ rear doors Alpine PDX-f4 Second Skin DampPro KNUkonceptz Wiring DCpower 270amp alt Optima YT underhood *temp Two15DCxls Hifonics bxi2610 *temp saz4500 and 4 xp3000s coming soon. Link to comment Share on other sites More sharing options...
BFF Larry Posted December 28, 2011 Author Report Share Posted December 28, 2011 When I lift up on the used sub, it rubs alittle. And I'm running one SD8K @ 1 ohm. Do you think the newer sub is blown if it rubs only from the side kinda in the center? Not dead center but kinda off the center... It'd hard to explain Quote Team Clearly Louder (MECA)Team DC Audio ++* SELLING the CACTUS SOUNDS K12 for $1550 shipped *++ HMU!!! 3 flips. nollie flips. big flips. hardflips. - steez Youtube Channel My Build Log 95 Bonneville SSE - WALLED/4th Order - ~30 cubes - *thanks LoganBerry, CortezDVT, Cj18, SuperCharged DC, Ryan-RAM Designs,LoudNLow931* Link to comment Share on other sites More sharing options...
matt402 Posted December 28, 2011 Report Share Posted December 28, 2011 (edited) If its rubbing its most likely blown, Both my dual 1s sit in about the same ohm area, And i believe the ohm load will always change when you move the coil. yep. i think they are ok... if u push on the side of the cone itll probably rub, the lvl 5 has a fairly tight gap already. Edited December 28, 2011 by matt402 Quote Link to comment Share on other sites More sharing options...
CJ18 Posted December 28, 2011 Report Share Posted December 28, 2011 If you push dead center on the cone and you have now rub then u are good. If the coils still read properly then you are good. Don't forget to touch the leads on your dmm together to check the resistance. Subtract that number from the reading you get on the coils. If you press down off center of the sub, you can cause coil rub. Quote Link to comment Share on other sites More sharing options...
BFF Larry Posted December 28, 2011 Author Report Share Posted December 28, 2011 TThanks everyone for replying! I was reading through the comments, Tomoro ill check the resistence once again after I touch the ends together. On the used sub, I get coil rub when I barely press down dead center... But once I press really hard I won't get it till it cone back to the "rest" point. On the new sub, I don't get rub if I press down dead center, but if I move slightly off the center, I mean just a fraction, I get rub. I accidentally broke the dustcap of the old red dc sub while pushing down in the center. Quote Team Clearly Louder (MECA)Team DC Audio ++* SELLING the CACTUS SOUNDS K12 for $1550 shipped *++ HMU!!! 3 flips. nollie flips. big flips. hardflips. - steez Youtube Channel My Build Log 95 Bonneville SSE - WALLED/4th Order - ~30 cubes - *thanks LoganBerry, CortezDVT, Cj18, SuperCharged DC, Ryan-RAM Designs,LoudNLow931* Link to comment Share on other sites More sharing options...
LoudNLow931 Posted December 28, 2011 Report Share Posted December 28, 2011 I would recommend just not pushing on them lol. Quote 2008 Dodge Ram 2500 6.7l Cummins 4 FT1s C1600.2 8 PWX 8s ONX2.100 Audio Technix Wiring & Sound Deadener My Youtube Feedback Link to comment Share on other sites More sharing options...
CJ18 Posted December 28, 2011 Report Share Posted December 28, 2011 You do have the possibility that the former could have gotten bent just a little and could be rubbing the pole, or if the coil is starting to come unwound due to high heat from extreme clipping, that could cause the rubbing sound. Quote Link to comment Share on other sites More sharing options...
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