Question about Profile BAJA HA700M Car Audio Amplifier

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Amp is shutting off after 10 min of driving!! please help!!

Alright, so i recently installed a Profile HA700M Mono subwoofer amplifier 350 watts RMS x 1 at 2 ohms and a 2 ohm Kicker TCVT102 Sealed truck enclosure with one 10'' CompVT subwoofer. For the first few days everything worked fine, but now im getting no sound out of the sub after about 10 minutes of driving. If i shut my truck off for a few minutes and start it back up, the sub will work again, and then do the same thing. I checked the voltage and i got a reading of 12.75, which i was told was ok. Im also running a much smaller amp to power 2 infinity kappa 63.7i speakers. I have the rca's going from my head unit to the sub amp, then from that amps line out to the speaker amp. The speakers never stop putting out sound... so it cant be a problem with the rca cables i think. The protect light never comes on, and the power light always stays on. I checked and rechecked all my connections, and they all seem fine. I have the sub amp grounded to the passenger side seat bolt, and i did sand away the paint. Before i installed the sub, i had the speaker amp grounded to the same spot and never had any problems. I now have the speaker amp under the drivers side seat, and the sub amp under the passenger seat. This is all installed in a 94 toyota pickup 4 cyl with the 22re engine. Hope thats enough info, if anyone needs more let me know. Thanks. Richie.

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  • rraithel Feb 18, 2009

    i thought i should also add that the gain and the bass boost are set at or under 1/2 of the max.

  • rraithel Feb 18, 2009

    yes, it happens at all volume levels, and ill check the remote turn on after the problem occurs... i just kinda didnt consider that to be a possible problem since the other amp stays on fine, and the power light on the sub amp is always on. i should also mention that the remote turn on is split to run to both amps. i just bought this amp so im just gonna have to return it i think... thank you.


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Does it happen at all volume levels?
What is the gain setting on the sub amp?
Have you checked for 12V @ remote turn on after problem occurs?
Sounds as if the remote turn on relay inside the amplifier is losing signal, or has become damaged. If the protection light does not light up, the problem is not thermal, shorting, or high/low voltage.
The amplifier is in need of repair. This is not an end-user fix. Looking at about $50 to repair.

Thanks for using FixYa- a FixYa rating is appreciated!!

Posted on Feb 18, 2009

  • blueextc3221
    blueextc3221 Feb 18, 2009

    some amplifiers must get 8V or more turn-on signal.

    With multiple amplifiers, the remote turn-on should be run from a spdt relay bank so all amplifiers will see the full 12V instead of sharing.

    Good idea to return if under warranty.


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