creyc Posted February 15, 2010 Report Share Posted February 15, 2010 I know the basics of what kind of subwoofer cooling options are most used on car audio subs but I'm trying to get a more advanced idea of how some of the best cooling designs work. Is it all about pumping air over the coil? Or is it more advantageous to sink the heat away into a huge bottom plate and away from the coil? I'm looking to possibly modify a pair of subwoofers to improve thermal power handling so any links to articles on this subject would be very helpful. 2001 Chevy Blazer (2) SAZ-3000Ds (2) custom 18" Madmax subs in a second row wall Rockford 600-4 Pioneer PRS components Pioneer P800PRS deck Link to comment Share on other sites More sharing options...
creyc Posted February 16, 2010 Author Report Share Posted February 16, 2010 No one knows anything about subwoofer cooling? 2001 Chevy Blazer (2) SAZ-3000Ds (2) custom 18" Madmax subs in a second row wall Rockford 600-4 Pioneer PRS components Pioneer P800PRS deck Link to comment Share on other sites More sharing options...
Boon Posted February 17, 2010 Report Share Posted February 17, 2010 Airflow is most important IMO. It's hard to heatsink the coil with the motor when it's seperated by the voice coil gap... although extremely tight-gapped SPL woofers manage it to a degree. Other way you can do it is with an aluminium former and cone, radiate heat that way. But the best way is to just get maximum airflow around the coil. Good luck modifying the motors, I hope you have a real good de-magnetiser because otherwise if you machine the motor you'll get metal filings stuck in the gap and then you may as well throw it out. 10.x volts fo' life! Link to comment Share on other sites More sharing options...
HHR Ed Posted February 17, 2010 Report Share Posted February 17, 2010 airflow over the coil is crucial. But its much more complicated than simple vents. Proper care must be taken to direction of airflow as well as the creation of vortices, eddys, and back pressure. Also, when adding cooling channels on the motor, you must take into consideration the magnetic properties of the gap. Ed Lester ShowtimeSPL Host Showtime Electronics Video MarketingMy old Build Loghttp://www.stevemead...08/#entry511451http://www.youtube.com/showtimespl 5 time dB Drag Finalist Last ride 2007 HHR, current dB 153.5 and bass race 149.4 dB. 153.0 dB on music New Ride, 2008 HHR SS. Build under way. Loudest score ever = 171dB 2009 dB Drag Racing, North American Points Champion Link to comment Share on other sites More sharing options...
tacomabanga1986 Posted February 17, 2010 Report Share Posted February 17, 2010 i unno if this works for someone else but my subs are louder in the spring,summer, and fall than in the winter here's a link to my system 99 toyota tacoma , 2 mtx 8000 1504's in a sealed downfire , 1000w memphis amp here's a link to my other system my 90 geo prizm test car heres a thread i got of new songs u can dl that are legal = Some Good Bangage/you Can Dl These Free And Legit Link to comment Share on other sites More sharing options...
HHR Ed Posted February 17, 2010 Report Share Posted February 17, 2010 i unno if this works for someone else but my subs are louder in the spring,summer, and fall than in the winter ever try a different frequency? Can have to do with many factors, how the enclosure works, battery efficiency, amplifier efficiency, as well as woofer performance. But I have always had the same SPL, just a shift in frequency depending on temp and atmospheric conditions. Ed Lester ShowtimeSPL Host Showtime Electronics Video MarketingMy old Build Loghttp://www.stevemead...08/#entry511451http://www.youtube.com/showtimespl 5 time dB Drag Finalist Last ride 2007 HHR, current dB 153.5 and bass race 149.4 dB. 153.0 dB on music New Ride, 2008 HHR SS. Build under way. Loudest score ever = 171dB 2009 dB Drag Racing, North American Points Champion Link to comment Share on other sites More sharing options...
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