polk audio mm651

supreme one
supreme one Posts: 1
edited October 2013 in Car Audio & Electronics
:rolleyes:just hooked up 2 sets of the mm651's in my boat the deck is a kenwood and when I get the volume over 20 the deck shuts off until I turn it down. Is this because I don't have an amp yet and the speakers are wanting to much power? the speakers I pulled out of the boat did'nt have the same problem.
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  • eric-holmes
    eric-holmes Posts: 6
    edited July 2009
    I was thinking about putting these same speakers in my boat. I also have a kenwood deck and when I crank it up with the stock speakers, it cuts out too. Any light to be shed on this situation would be great. Thanks
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  • arun1963
    arun1963 Posts: 1,797
    edited July 2009
    The amp in your hu is clipping and then shutting down. Get an amp.

    Guy's youre driving a 100watt rms speaker off a 15watts rms power source, and then youre trying to crank it....:)

    The MM series are solid. To hear the true potential you have to amp them
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  • eric-holmes
    eric-holmes Posts: 6
    edited July 2009
    Quick reply, awesome thanks.
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  • MacLeod
    MacLeod Posts: 14,358
    edited July 2009
    Not sure if thats the problem. Yeah youre clipping the head unit and yeah a head unit is the WORST power source but it shouldnt cut the head unit off. Sounds to me youve got either a bad ground and/or bad power wire termination and its not drawing enough power. Even at full clip, the head unit should still play.
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  • eric-holmes
    eric-holmes Posts: 6
    edited July 2009
    I wish I could tell you where the ground was but it is on a boat. All I did was connect the black wires from the stock HU to the new one.
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  • UltraNutZ
    UltraNutZ Posts: 9
    edited August 2013
    old thread but the issue is you're using 2.7 ohm speakers on a head unit that is only stable down to 4 ohms. get an amp that is stable at 2 ohms
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  • AjsCrown
    AjsCrown Posts: 6
    edited October 2013
    I had the same issue,all new components! The Kenwood head would just shut down! The problem ended up being low voltage to my
    entire console. Not sure how,or why. I ran a dedicated powerline to the Head unit,and solved it instantly!
    Hope this helps.
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