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    Bow94z's Avatar
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    Having issue with my Eclipse EA4100 shutting off at high volumes

    Im running a Alpine Cda-9811 headunit with 4volt pre-amp

    running Eclipse SC6500 comp's (75rms) up front and SE6500 coax's (40rms) in the rear powered by a Eclipse EA4100 amp (75x4)

    My issue is that my speakers/amp are cutting out when the volume is greater than 16 on my headunit. MAx volume is 35 on headunit. if i turn the headunit off and back on they will continue to work until higher volume. Im assuming the input gain is too high, but im havin trouble finding the sweet spot to keep my amp/speakers from shutting off. from what i read i need to match the preamp voltage of my headunit to the amp. I have my input gain on my front and rear speakers set to the "12 o'clock" position on the amp which im assuming is 4v considering it shows 8 on the low end and .2 which is the loudest which is in the picture below.. Can anyone help me figure this problem out

    and what exactly is clipping and how does this help me out tuning.





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    Re: Having issue with my Eclipse EA4100 shutting off at high volumes

    check to make sure youre wires are not touching... on everything




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    Re: Having issue with my Eclipse EA4100 shutting off at high volumes

    they are not. i can be siting still and as i go higher with volume, the speakers/amp will shut off...but the subs will continue to the song



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    Re: Having issue with my Eclipse EA4100 shutting off at high volumes

    amps going into protect because at high levels its not getting enough power i would think, if thats the case and you got your gain in the 12 o clock position put it lower like around 9 or 8 position



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    Re: Having issue with my Eclipse EA4100 shutting off at high volumes

    yeah check the wireing to and on your interior speakers ,,, it may be be touching




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    Re: Having issue with my Eclipse EA4100 shutting off at high volumes

    i dont understand on this amp why the 8 is the lowest point and 0.2 is the highest point asfar as the input gain



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    Re: Having issue with my Eclipse EA4100 shutting off at high volumes

    Quote Originally Posted by Bow94z View Post
    Im running a Alpine Cda-9811 headunit with 4volt pre-amp

    running Eclipse SC6500 comp's (75rms) up front and SE6500 coax's (40rms) in the rear powered by a Eclipse EA4100 amp (75x4)

    My issue is that my speakers/amp are cutting out when the volume is greater than 16 on my headunit. MAx volume is 35 on headunit. if i turn the headunit off and back on they will continue to work until higher volume. Im assuming the input gain is too high, but im havin trouble finding the sweet spot to keep my amp/speakers from shutting off. from what i read i need to match the preamp voltage of my headunit to the amp. I have my input gain on my front and rear speakers set to the "12 o'clock" position on the amp which im assuming is 4v considering it shows 8 on the low end and .2 which is the loudest which is in the picture below.. Can anyone help me figure this problem out

    and what exactly is clipping and how does this help me out tuning.


    May or may not be contributing to your problem but you can't use the numbers on those dials to even get an approximate measurement of the right gain setting unless the value you're looking for is specifically marked on the amp or in the manual and you know your head unit is putting out the rated voltage at the pre-outs, which not all of them do. The gain dials usually aren't marked in a linnear manner. Example: On my EA4200 the max is .2. Half way is 4, minimum or all the way counter clockwise is 6.

    On my Alpine MRP M500 the max is .2, the min or all the way counter clockwise is 4. I think half way is like 1 or 1.5 volts or so.
    Last edited by eharri3; 02-15-2009 at 08:59 PM.



    Re: whats some good components?


    Quote:
    Originally Posted by deathpenalty18
    Not an sq set up just want good sq speakers and tweets not interested in mids! And my sub is a fcking ia dp 18 with a memphis 4kw


    Originally Posted by x1le
    mids ARE speakers.

    A component set = pair of midwoofer's and a pair of tweeter's

    and nobody cares what your sub is.

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    Re: Having issue with my Eclipse EA4100 shutting off at high volumes

    Quote Originally Posted by Bow94z View Post
    i dont understand on this amp why the 8 is the lowest point and 0.2 is the highest point asfar as the input gain
    Setting the gain is telling your amp how much of a signal it gets so it will know how hard it has to work to amplify it. The lower the numerical number, the more the signal must be amplified, therefore going clockwise to the lower numbers = increased gain. The higher the number, the less it'll need to be amplified, therefore going counter clockwise to the higher numbers = decreased gain.

    I understand clipping but others will be better at explaining it to you. It basically happens when you raise the volume on the head unit past the point where it is capable of producing a clear signal any longer during normal listening, or you set the gain incorrectly so your amplifier reaches maximum power prior to your head unit's maximum clean voltage and then you crank the volume beyond THAT point during frequent listening. If you are already playing with a decent amount of power and then you do this by too much for too long you can cause vital components in the speaker to overheat and eventually kill the driver.

    This page has the clearest explanations I have ever found for any of this. http://www.bcae1.com/
    Last edited by eharri3; 02-15-2009 at 09:06 PM.



    Re: whats some good components?


    Quote:
    Originally Posted by deathpenalty18
    Not an sq set up just want good sq speakers and tweets not interested in mids! And my sub is a fcking ia dp 18 with a memphis 4kw


    Originally Posted by x1le
    mids ARE speakers.

    A component set = pair of midwoofer's and a pair of tweeter's

    and nobody cares what your sub is.

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    Re: Having issue with my Eclipse EA4100 shutting off at high volumes

    anyone have any other suggestions on tuning my setup? im still getting some cut out on certain music



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    99 Maxima SE-Daily Driver

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    Re: Having issue with my Eclipse EA4100 shutting off at high volumes

    Quote Originally Posted by Bow94z View Post
    anyone have any other suggestions on tuning my setup? im still getting some cut out on certain music
    Dude, cut down the gain and check your wiring




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