Question about Hifonics Brutus BX 1505D Car Audio Amplifier

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Amp does not work

My hifonics amp keeps turning off every time I raise the volume in the car.

please help

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Make sure your power and ground wires are 4 gauge thats a big power puller also make sure your wires to woofers are correct!and you want a short ground wire and a good spot for it no paint!!
if there out of phase that will shut it off BUT you might be needing a battery cap. MORE POWER!!!!they dont cost much
and save your battery and alt.hifonics is a good choice my favorite are the series 7 they dont make them like that anymore!
hope this helps one more thing your alt.how many amps is it?
my honda is only 60 amps your brutus pulls that all day !
(BATT.CAP.or HAVE ALT.WRAPED for more power.

Posted on Dec 01, 2007

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The Hifonics Brutus 2100 is stated to produce 2100 watts RMS @ 1ohm load. Most amplifier manufacturers overstate their claims. The 2100 watt output is most likely at 14.4 volts and not the 12.6 volts your car will actually be providing the amp.

But, even if the actual output was 2100 watts that would be 1050 watts to each 12w7. The 12w7's are rated at 1000watts RMS and 2000watts peak. As a MECP certified installer, any system I have done using 12w7's have had a MINIMUM of 1000 watts being provided to each speaker. My personal preference is to run 1500 watts each and keep the gains adjusted lower on the amp. Thus allowing the amp to run cooler and allow the additional headroom for those "show-off" moments!

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1 Answer

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If I were a guessing man, I'd guess that you had your amp hooked up in a bridged configuration. And also that you connected your two speakers in parallel (plus to plus and minus to minus). And if I were to further guess, I'd guess that you have a blown amp now because of what I mentioned above. Sounds like you need to spend some quality time with your favorite electronic repair shop. Good luck.

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