bobobass Posted August 5, 2011 Report Share Posted August 5, 2011 Yes box size does effect cooling. In a large box your sub will most likely be using a good amoun of it xmax. How ever in a small box, the cone of the sub will be more restricted to move and that means less air movin through through the motor Quote 2000 Subaru outback 2.5l Head Unit: Pioneer deh 4300ub front stage: tbd subwoofer: Stock Fi Q 18" amp: Audio que 1200d Link to comment Share on other sites More sharing options...
chunt33 Posted August 5, 2011 Report Share Posted August 5, 2011 But at lower volume, the sub is seeing less power, so it will not be getting as hot??? a sub cools itslf by moving period!!!! it needs to move lower... volume does give you less current draw and thd that does cause less heat but then the sub is not cooling itself by moving ether so it can get just as hot with low volumes and then again it might not get hot at all depends on the box subs are box dependent It is impossible to blow a sub by running it on too little power (whether it be thermally or mechanically). Period!!!!! Quote Link to comment Share on other sites More sharing options...
Supercharged DCs Posted August 5, 2011 Report Share Posted August 5, 2011 But at lower volume, the sub is seeing less power, so it will not be getting as hot??? a sub cools itslf by moving period!!!! it needs to move lower... volume does give you less current draw and thd that does cause less heat but then the sub is not cooling itself by moving ether so it can get just as hot with low volumes and then again it might not get hot at all depends on the box subs are box dependent It is impossible to blow a sub by running it on too little power (whether it be thermally or mechanically). Period!!!!! Where did he say running it on too low of power may blow the subwoofer? Quote Bassless once again. Can't seem to keep a system for more than a few weeks Saving for a '06 Nissan 350z, look for build around June 2012. Link to comment Share on other sites More sharing options...
chunt33 Posted August 5, 2011 Report Share Posted August 5, 2011 But at lower volume, the sub is seeing less power, so it will not be getting as hot??? a sub cools itslf by moving period!!!! it needs to move lower... volume does give you less current draw and thd that does cause less heat but then the sub is not cooling itself by moving ether so it can get just as hot with low volumes and then again it might not get hot at all depends on the box subs are box dependent It is impossible to blow a sub by running it on too little power (whether it be thermally or mechanically). Period!!!!! Where did he say running it on too low of power may blow the subwoofer? Thanks for your 2cents on this. If I am running 4k RMS onto a 3" coil it will fail eventually because it can only handle ~2500 RMS thermally. He stated that a sub ran on lower power can get just as hot, so...... By his logic if I am running 200 RMS onto same 3" coils they should also fail thermally, because the sub is not moving so it cannot stay cool. Quote Link to comment Share on other sites More sharing options...
kirill007 Posted August 5, 2011 Report Share Posted August 5, 2011 he is talking about normal power and not overpowering. Pay attention... Quote Thinking is the root of all problems... You ALWAYS get what you pay for. Link to comment Share on other sites More sharing options...
chunt33 Posted August 5, 2011 Report Share Posted August 5, 2011 he is talking about normal power and not overpowering. Pay attention... If your box is designed properly, and you are not overpowering your subs, your coils will never get too warm, so what would the concern be? Quote Link to comment Share on other sites More sharing options...
ALPINE408 Posted August 5, 2011 Report Share Posted August 5, 2011 But at lower volume, the sub is seeing less power, so it will not be getting as hot??? a sub cools itslf by moving period!!!! it needs to move lower... volume does give you less current draw and thd that does cause less heat but then the sub is not cooling itself by moving ether so it can get just as hot with low volumes and then again it might not get hot at all depends on the box subs are box dependent It is impossible to blow a sub by running it on too little power (whether it be thermally or mechanically). Period!!!!! Where did he say running it on too low of power may blow the subwoofer? Thanks for your 2cents on this. If I am running 4k RMS onto a 3" coil it will fail eventually because it can only handle ~2500 RMS thermally. He stated that a sub ran on lower power can get just as hot, so...... By his logic if I am running 200 RMS onto same 3" coils they should also fail thermally, because the sub is not moving so it cannot stay cool. i said it can get just as hot if there is nothing happing to disapate the heat never said it will fail and if you run 200 rms cliped to a 3 " coil it will fail the sub needs to move to cool its self so how can it stay cool not moving while genrating heat? Quote Have you ever had your woofers blown? Link to comment Share on other sites More sharing options...
ALPINE408 Posted August 5, 2011 Report Share Posted August 5, 2011 he is talking about normal power and not overpowering. Pay attention... If your box is designed properly, and you are not overpowering your subs, your coils will never get too warm, so what would the concern be? did you read the first post or just trying to argue? the OP asked if box size effects cooling... and it does Quote Have you ever had your woofers blown? Link to comment Share on other sites More sharing options...
burzendowski Posted August 5, 2011 Author Report Share Posted August 5, 2011 reason i ask is because one of my subs went down. I have not yet pulled the sub but i can hear the coils, the one sub has a coil unwound. It went down while i was sitting in a parking lot playing some tracks tuning my amp. I was watching the subs the whole time, they were not moving very much and they were not being clipped. I could not smell any coil until after it went down, the one sub sounded scratchy very fine like got worse in a couple seconds then it was done. i dont understand why this happened, the sub is a dd 9515 kevlar cone and cap. The sub has gotten stinky in the past but i always let it cool down when it does. The sub is less than 45 days old. my box is a 6th order rear chamber per woofer is 1.75 cubic ft. there is 2" from pole vent to the back of the enclosure. Something is not rite here, i feel its the enclosure Quote Link to comment Share on other sites More sharing options...
burzendowski Posted August 5, 2011 Author Report Share Posted August 5, 2011 If anyone wants me to post pictures of the enclosure. Quote Link to comment Share on other sites More sharing options...
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