xXsquintyeyesXx Posted April 25, 2011 Report Share Posted April 25, 2011 Today I blew one of my mojo 12"s. When i took it to the car shop and asked why it blew they said it was because I played it with the hatch open and that by doing this it gave my sub to much airspace and caused the sub to blow (coil detached). Could the hatch being opened actually have caused this or are the car shop guys not telling me something? I have 2 memphis mojo 12" (i think they are dual 4ohm) 1 digital designs m3a Amp Link to comment Share on other sites More sharing options...
Supercharged DCs Posted April 25, 2011 Report Share Posted April 25, 2011 I've heard that this is actually possible. If you open it up too suddenly, it can mess up the sub. Not sure if it's enough to blow it or not though. 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...
Azagtoth502 Posted April 25, 2011 Report Share Posted April 25, 2011 Yes, It could have "unloaded" the speaker. pa-pa-platypus sorry not everybody has a companies nuts so far down their throat they catch every drop ball sweat when it falls Link to comment Share on other sites More sharing options...
BeAlLsTaR13 Posted April 25, 2011 Report Share Posted April 25, 2011 you prolly were just clipping the fuck outta it, ive never seen one get wrecked from opening a hatch though i had an issue like this once except it wasnt clipping, or bottoming out.. it tore my former right from the spider.. it was a dc level 4.. dunno how it happened.. it was well within box specs on rated power, who knows. Team Sundown Audio**CURRENT** -- 2012 Scion tC Build Click Here **OLD** -- 2002 Pontiac Grand AM Build Click Herecheck them out, slap me a comment2002 Pontiac Grand AM SE 2.2l 4 cylinder ecotec.-------------------------------------------------------------------Head Unit - Alpine CDA-9887Subs - 2x Z 12 v.2s - v.3 + NS Soft partsAmplifier - Sundown Audio SAZ-3500DEnclosure - 3.33 Cubes tuned to 34.66hzFront Stage - JBL P660c 6.5" ComponentsRear Deck - Powerbass 4xl 6.5" Mid-RangeFront Stage Amplifier - Sundown Audio SAX-100.4DWires - Kicker Hyperflex 1/0, KnuKonceptz 1/0, Knu 4 and 8 Gauge, Kicker RCAsElectrical - 275 AMP DC Power H/O Alternator, XS Power S3400, XS Power D2700Videos - http://www.youtube.com/user/BeAILsTaR13------------------------------------------------------------------- Link to comment Share on other sites More sharing options...
blownengine Posted April 25, 2011 Report Share Posted April 25, 2011 I would say clipping. It sounds very unlikely that opening the hatch would mess with the subs. 2003 Dodge Ram 1500 SLT (Yea its got a Hemi)Alpine CDA-105KnuKonceptz 0ga CCA Big 3 with Yellow Top 15" SoundQubed HDC3DC Audio 1.2K (Bass)Pioneer 6x9's (Front)Pioneer 6.5's (Rear)Kicker 3.5's (Dash)Sony amp on the highs. (Hey it was free) Link to comment Share on other sites More sharing options...
HHR Ed Posted April 25, 2011 Report Share Posted April 25, 2011 Yes, opening the hatch can damage woofers. Depends on your enclosure and car, but the enclosure and car work together, and when you change the airspace on one of those, you totally change how it is tuned and plays. Most of the time, opening a hatch or trunk releases any possibly back pressure on the woofer cone that would normally help control woofer excursion. Box tuning gets raised, and if you play a low note at any decently high power setting, it can damage the woofers. Why do you think it sounds different when you open the hatch? 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...
speedball1978 Posted April 25, 2011 Report Share Posted April 25, 2011 Yes, opening the hatch can damage woofers. Depends on your enclosure and car, but the enclosure and car work together, and when you change the airspace on one of those, you totally change how it is tuned and plays. Most of the time, opening a hatch or trunk releases any possibly back pressure on the woofer cone that would normally help control woofer excursion. Box tuning gets raised, and if you play a low note at any decently high power setting, it can damage the woofers. Why do you think it sounds different when you open the hatch? x2 this is a very true statement.. good point made Ed Link to comment Share on other sites More sharing options...
Reilly Posted April 25, 2011 Report Share Posted April 25, 2011 Yes, opening the hatch can damage woofers. Depends on your enclosure and car, but the enclosure and car work together, and when you change the airspace on one of those, you totally change how it is tuned and plays. Most of the time, opening a hatch or trunk releases any possibly back pressure on the woofer cone that would normally help control woofer excursion. Box tuning gets raised, and if you play a low note at any decently high power setting, it can damage the woofers. Why do you think it sounds different when you open the hatch? Bingo Unloading is likely the reason if you have been fine for a long time, then this one time your railing on it and opened the hatch. If your woofers are close to the hatch wall, its pretty likely the reason too. LOTS of variables as to why it blew though. M3 can make some big power. Clovis Custom Audio 559-392-3600 96 Silverado Single Cab 2-DD9515's Cut-through 1-DDSE Amp Stock electrical and a couple small stingers, LOL Link to comment Share on other sites More sharing options...
nCOMP1337 Posted April 25, 2011 Report Share Posted April 25, 2011 does that affect the woofer in the same way if it is facing the front of the vehicle and sealed off at the trunk, i dont particularly care to open my trunk when playing, especially since the woofer wouldnt be able to be seen form the trunk anyways, but not sure if it would affect it or not Link to comment Share on other sites More sharing options...
HHR Ed Posted April 25, 2011 Report Share Posted April 25, 2011 does that affect the woofer in the same way if it is facing the front of the vehicle and sealed off at the trunk, i dont particularly care to open my trunk when playing, especially since the woofer wouldnt be able to be seen form the trunk anyways, but not sure if it would affect it or not Yes it does affect it, but maybe not as severely or in the same manner. Some SPL burp cars will walls can blow woofers if playing at full with the front doors open. 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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