Browne Posted April 18, 2007 Report Share Posted April 18, 2007 can a lower voltage cause a fuse to blow? Quote System specs Beyma Pro 8MI (2) Rockford P550.2 Rockford T20001BD MTX 9512 (2) HO Alt 200amp BIG 3 Pioneer AVH-P4900DVD Clarion EQS746 AudioControl EPIC160 Kinetik HC2400 Link to comment Share on other sites More sharing options...
kingsuv Posted April 18, 2007 Report Share Posted April 18, 2007 No. Bad power connections, grounding out or too low of an ohm load yes. Quote Designing, building, and shipping boxes. Yahoo IM - kingsuv00If the listening level is too loud, please inform the driver, so he can promptly pull over, and let you out. not many cars can get me to pluggin my ears but this one.......damn. I mean the first minute is ok but that thing just really starts digging deeper and deeper in your earhole till you cant stand it no more. Seems like it does it with relative ease....16 12's on 8 amps.........gotta love it. Link to comment Share on other sites More sharing options...
Chris Posted April 18, 2007 Report Share Posted April 18, 2007 can a lower voltage cause a fuse to blow? A higher voltage can, but not lower. The only way they can blow is if your power wire gets shorted out/grounded somewhere or you sub and/or speakers are wired incorrectly (to a lower ohm load) causing your amp to draw more power than what it is rated for. I know kingsuv pretty much said exactly what's above, but I put it in plainer terms. Quote 4 15" FI Q D2's in 12 cubes tuned to 32hz 1- T1000.1bd's 3 Maxx 29 deep cycles 4 runs of 1/0 gauge -Big 3 -Trunk sealed off from the cabin Custom 15.8 dual-volt switching MLA module All in a CAR. Link to comment Share on other sites More sharing options...
Ray Posted April 18, 2007 Report Share Posted April 18, 2007 technically lower voltage causes the amprege draw tp go up, so if you are close to the fuse rating at 14volts and have a drop down to 10v. for longer than 5 sec than the fuse "COULD" pop. Quote 2008 California state record holder 157.2 Bassrace2009 California state record holder 157.0 BassraceRollin 50's 158.7db2009 King of Cali Bassrace2009 USACi score 160.5 @ 42hz Link to comment Share on other sites More sharing options...
Chris Posted April 18, 2007 Report Share Posted April 18, 2007 Except most automotive fuses are rated at around 50volts in order to counteract this effect. Quote 4 15" FI Q D2's in 12 cubes tuned to 32hz 1- T1000.1bd's 3 Maxx 29 deep cycles 4 runs of 1/0 gauge -Big 3 -Trunk sealed off from the cabin Custom 15.8 dual-volt switching MLA module All in a CAR. Link to comment Share on other sites More sharing options...
Ray Posted April 18, 2007 Report Share Posted April 18, 2007 "Counter act" basic physics?? Please explain. Quote 2008 California state record holder 157.2 Bassrace2009 California state record holder 157.0 BassraceRollin 50's 158.7db2009 King of Cali Bassrace2009 USACi score 160.5 @ 42hz Link to comment Share on other sites More sharing options...
Chris Posted April 18, 2007 Report Share Posted April 18, 2007 Maybe compensate was a better word choice? The fluctuation between voltage and current is so small, there is almost no difference at all for voltage drops. It would take a very high voltage to blow a fuse rated at 15 amp & 50volts. 15 amps is 15amps whether it's at 10 volts or 110 volts. Start talking about thousands of volts & you have a different story. Quote 4 15" FI Q D2's in 12 cubes tuned to 32hz 1- T1000.1bd's 3 Maxx 29 deep cycles 4 runs of 1/0 gauge -Big 3 -Trunk sealed off from the cabin Custom 15.8 dual-volt switching MLA module All in a CAR. Link to comment Share on other sites More sharing options...
Ray Posted April 18, 2007 Report Share Posted April 18, 2007 You just went to 2 opposite ends of voltage, from ac to dc.. I think I get what your trying to say ... Now what I was saying is that if he has a 100amp fuse and is drawing 95amp continuous at 14.4 volts then he dips down to 10 volts for longer than 5 seconds, then the amperage will go up. If you pull 2000 watts at 14 volts and the amp draw is 160amp then you drop the voltage down to 10 volts ..... now the draw is 180 amps. Quote 2008 California state record holder 157.2 Bassrace2009 California state record holder 157.0 BassraceRollin 50's 158.7db2009 King of Cali Bassrace2009 USACi score 160.5 @ 42hz Link to comment Share on other sites More sharing options...
Chris Posted April 18, 2007 Report Share Posted April 18, 2007 (edited) I'm really not sure on this subject, but I have an electronics engineering course tommarrow at 9am & my instructor has a master's degree... I'd like to find out for sure, so I think I'll run this one by him. How sure are you of this Ray, cuz I know you have experience & all, but this is something I've really never heard of. Edited April 18, 2007 by Chris Quote 4 15" FI Q D2's in 12 cubes tuned to 32hz 1- T1000.1bd's 3 Maxx 29 deep cycles 4 runs of 1/0 gauge -Big 3 -Trunk sealed off from the cabin Custom 15.8 dual-volt switching MLA module All in a CAR. Link to comment Share on other sites More sharing options...
Ray Posted April 18, 2007 Report Share Posted April 18, 2007 Very basic ohms law. try it for yourself http://www.the12volt.com/ohm/page2.asp Quote 2008 California state record holder 157.2 Bassrace2009 California state record holder 157.0 BassraceRollin 50's 158.7db2009 King of Cali Bassrace2009 USACi score 160.5 @ 42hz Link to comment Share on other sites More sharing options...
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