Polk Momo 400.4C Amp Please Help

mustang50lx88
mustang50lx88 Posts: 5
edited June 2008 in Car Audio & Electronics
I have noticed a few times when I'm listening to music in the car.. the amp is working great.. then after about 20-30 minutes later the amp cuts out and the Blue LED Power light starts flashing.. I'm trying to figure out what that means... the LED light for the Thermal isn't on so I know the amp isn't over heating.. I tried looking for info on this but can find any.. I'm hoping that someone on here would be able to help me out and define what that blue flashing led light means.. Thanks again, I appreciate it. P.S. I have a Alpine type E 10inch sub hooked up to the amp, and I have it bridged, if that makes a difference.. Thanks.
Post edited by mustang50lx88 on
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  • mustang50lx88
    mustang50lx88 Posts: 5
    edited June 2008
    Bump: Anyone?? Guess no one has an answer for me then. Thanks anyways
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  • MacLeod
    MacLeod Posts: 14,358
    edited June 2008
    I dont know dude. If the amp is cutting off and its not defective, its either its overheating or its being pushed too hard, or maybe low voltage. I dont know for sure.

    Contact Polk customer service and Ill betcha they can tell ya exactly whats wrong.

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  • greg2350
    greg2350 Posts: 544
    edited June 2008
    I have a C400.4 and have never expeienced this problem or heard of it. Like macleod says contact customer service and I bet they can tell you what it is good luck.
    TV: Philips 42" LCD 1080p
    Front Speakers: Polk Audio RT800i
    Center Speaker: Polk Audio CS1
    Surround Speakers: Polk Audio R50's powered of Denon AVR
    Subwoofer: Polk Audio DSW pro500
    AVR: Denon 3801
    DVD Player: Denon DVM 745 upscale 1080p
    Sat: Directtv HD 10
    Front Speakers Amp: Rotel RB 890
    Center Speaker amp: Rotel 970 BX
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  • Topper
    Topper Posts: 403
    edited June 2008
    whats the coil-config of your sub? any chance your wiring it below 4-ohms when bridged?
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  • mustang50lx88
    mustang50lx88 Posts: 5
    edited June 2008
    1st I'd like to start off by saying thanks to those who replied and was able to give me some great info.. secondly.. the amp was not overheating nor is it defective... It was the blue power LED light that was flashing... The Alpine Type E Sub has and 4ohm Load and perhaps by bridging it it was under at 2ohms and thats what probably caused it.. not sure yet as I haven't contacted Polk Audio but plan on calling them to confirm what is the problem.. I will say this though, the sub is now blown, no biggie I plan on buying a new set of subs, I'll have two hooked up instead of one sub... Thank you everyone for your help. I greatly appreciate it.
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