Question about Crossfire VR404 Car Audio Amplifier
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Posted on Jan 02, 2017
if its cutting off and right back on then check your ground and your power wire makes sure both are connected good and none of your fuse's are blown, either that or you got a wire hooked up backwards in the sub.. but my guess is that the sub is hooked up wrong... that sub should be hooked up in a series or in parallel,
ok if your running just one speaker, it should be hooked up like this and 2 speakers are a different way...
this is parallel :pos to pos , neg to neg, then one wire coming from pos on sub to pos on amp then neg on sub to neg on amp but bridge the amp on your amp should be 2 pos and 2 neg in two different channels take the pos off the sub into the pos on 1 channel and then the neg from sub to the neg on the other channel,
this is series : on the sub it will go pos to neg then the other neg and pos will go to the amp, but make sure the pos and neg r on different sides of the sub, dont hook them both to the same coil
if your need more help give me your email and ill send you a pic of how to do it...
Posted on Aug 12, 2008
SOURCE: Alpine PDX1.600 amp cuts off
Make sure there's no missmatched impedance. If your sub running 2 ohms then your amp has to be 2 ohms stable. Does the amp blow fuses or get really hot? If it does it can be a fire hazard and I would recommend taking it out of your car. It could be that you don't have sufficient grounding. The grounding needs to be very close to the amp and the paint needs to be thoroughly scratched off. Otherwise could be a blown transistor within the amplifier, you can check this by opening up the amp, running a multimeter and testing the transistors for resistance.
Posted on Aug 05, 2009
You are probably exceeding the rating for the speakers. This amp can deliver 2000 watts to a 2 ohm load. You would need MASSIVE speakers to take this much power. The best of speakers can probably take an HONEST 400 watts... although most LIE big time about their capability. ALSO the spaekers have to have an ENGINEERED enclosure when run at high power. It is unlikely you cna drive 3 speakers evenly so they share the power... one is gonna get fried first...
then the remaining ones will fry...
ALSO make sure you don't send music pitches higher than what the speakers are designed to take. Make sure your crossover prevents highs from getting to subs.
Posted on Dec 22, 2009
check your baterry post you need to have them tight i had the same amp and 2 15s L7 the blue light turns on right make sure there not covered in acid corrossion clean them out
Posted on Mar 25, 2010
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