kevinb721 Posted July 17, 2007 Report Share Posted July 17, 2007 this may seem a bit noobish, but im trying to figure out why my amp keeps blowing its fuses...i blew them twice now and i dont know why. so this is what i want to know: i have 2 batteries, and i have 2 fuses set up like this: battery-----fuse----------+------------fuse-----battery-------------amp now am i supposed to have another inline fuse between my 2nd battery and my amp? why did the amp fuses blow in the first place? thanks in advance Quote 12" fi q rf t10001 naw mean Link to comment Share on other sites More sharing options...
lantusx Posted July 17, 2007 Report Share Posted July 17, 2007 could be that your fuses are not big enough if not then idk Quote Link to comment Share on other sites More sharing options...
dcofer Posted July 17, 2007 Report Share Posted July 17, 2007 when you run just one battery you have the fuse inline between the amp and the battery so in reallity i would think that you could just run one fuse between the 2nd battery and the amp. otherwises id say one fuse after the first batt and another after the 2nd before the amp. also a bad ground can blow fuses ot stray wires in the wrong place. Quote Link to comment Share on other sites More sharing options...
dcofer Posted July 17, 2007 Report Share Posted July 17, 2007 what size fuses are you running anyways? Quote Link to comment Share on other sites More sharing options...
kevinb721 Posted July 17, 2007 Author Report Share Posted July 17, 2007 could be that your fuses are not big enough if not then idk that was my first thought but they are 150 amp fuses im sure thats big enough right? i dont really know, im not really gooad at this electrical shit, i can wire shit like nothing but when it comes to all that amps watts volts and shit im clueless Quote 12" fi q rf t10001 naw mean Link to comment Share on other sites More sharing options...
sean 371 Posted July 17, 2007 Report Share Posted July 17, 2007 Yes you should technically have fuses before and after every battery. Not everyone does it but its a good idea. Quote A couple links to some box builds: Tahoe Box 1, Tahoe Box 2, Nissan Titan, VW GTI, Mini-Bump, Hummer H2, Ford F-150 My own car builds (current setup --- under construction): Overall Thread, Kickpods, Dash, Back Doors Subwoofer Wall Link to comment Share on other sites More sharing options...
dcofer Posted July 17, 2007 Report Share Posted July 17, 2007 are you running a capacitor? because if you have a lot of watts being given out and of it spikes really bad, lets say on a really deep low that could cause a voltage burst that your amp cant take. Quote Link to comment Share on other sites More sharing options...
sean 371 Posted July 17, 2007 Report Share Posted July 17, 2007 Capacitors don't push power, power is pulled from them. The amp will pull as much power as it needs, not more. Quote A couple links to some box builds: Tahoe Box 1, Tahoe Box 2, Nissan Titan, VW GTI, Mini-Bump, Hummer H2, Ford F-150 My own car builds (current setup --- under construction): Overall Thread, Kickpods, Dash, Back Doors Subwoofer Wall Link to comment Share on other sites More sharing options...
dcofer Posted July 17, 2007 Report Share Posted July 17, 2007 the cap creates a stable voltage flow, if the amp draws more volts that it can handel it will blow fuses, i have had that problem in my car. normally higher wattage amps need them. but your right they dont provide power, they jus keep a stable current instead of one that dips low and spikes ... also prevents your lights from dimming every time your subs hit Quote Link to comment Share on other sites More sharing options...
sean 371 Posted July 17, 2007 Report Share Posted July 17, 2007 But what I'm saying is that an amp won't draw more than it needs. Unless you're running a 16v system, then its a different story. But if you supply a 14v constant supply, the only way that the amp could see more power is if the alternator surges, which i've heard can happen somehow. Quote A couple links to some box builds: Tahoe Box 1, Tahoe Box 2, Nissan Titan, VW GTI, Mini-Bump, Hummer H2, Ford F-150 My own car builds (current setup --- under construction): Overall Thread, Kickpods, Dash, Back Doors Subwoofer Wall Link to comment Share on other sites More sharing options...
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