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    peder25's Avatar
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    Bass Boost?

    I am running 1 kicker l7 15in sub with a alpine mrd m1005 amp. When the head units settings are normal with no increase in bass it is not loud, but when i turn the bass settings all the way up it sound awsome, it sounds like a totally different sub. I know this subs can take alot more power then what i am giving it so why do i read that it is bad to use bass boost?







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    Re: Bass Boost?

    use a search button for that theres alot of yes and no to that unless sum one feels like posting about it



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    Re: Bass Boost?

    i have searched, i guess my question is if you know you can give your sub more power, is there any reason to not use the bass boost?




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    Re: Bass Boost?

    Quote Originally Posted by peder25 View Post
    i have searched, i guess my question is if you know you can give your sub more power, is there any reason to not use the bass boost?
    If you didnt set your gains with the bass boost on you run the risk of clipping the amp, and possibly damaging your sub.



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    Re: Bass Boost?

    what exactly is clipping? and how do i know if i am clipping the amp? and btw it is the settings on the head unit i do not have a bass nob, if that makes any difference?




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    Re: Bass Boost?

    Quote Originally Posted by peder25 View Post
    what exactly is clipping? and how do i know if i am clipping the amp? and btw it is the settings on the head unit i do not have a bass nob, if that makes any difference?
    The bass setting on the head unit is a 1 band equalizer, same thing as a bass boost knob. Unless it is your subwoofer level output, that is different because it would control the level of the outputs from the sub RCAs, at all frequencies coming out.

    If your gains are set with everything flat (like they should be), then adding a bass boost increases the input signal at a certain range of frequencies. So the amp will be trying to make more power than it can in that range of frequencies at higher volumes (because it should be set to make pretty much max rms power if you set the gains right) and the signal will "clip." This causes distortion, extra heat, and wears down the sub and the amp.

    It may sound like a whole nother sub because you are causing the amp to clip (where it is actually very efficient when clipping) making it louder at certain frequencies (especially if the bass boost freq is around the bass notes of the song) and can make it louder on certain songs.
    Last edited by XanderMoser; 10-29-2007 at 11:39 PM.




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    Re: Bass Boost?

    Quote Originally Posted by XanderMoser View Post
    The bass setting on the head unit is a 1 band equalizer, same thing as a bass boost knob. Unless it is your subwoofer level output, that is different because it would control the level of the outputs from the sub RCAs, at all frequencies coming out.

    If your gains are set with everything flat (like they should be), then adding a bass boost increases the input signal at a certain range of frequencies. So the amp will be trying to make more power than it can in that range of frequencies at higher volumes (because it should be set to make pretty much max rms power if you set the gains right) and the signal will "clip." This causes distortion, extra heat, and wears down the sub and the amp.

    It may sound like a whole number sub because you are causing the amp to clip (where it is actually very efficient when clipping) making it louder at certain frequencies (especially if the bass boost freq is around the bass notes of the song) and can make it louder on certain songs.

    Yeah, what he said!


    (Very nicely put!)



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    Re: Bass Boost?

    Every time someone clips their amps with bass boost, god kills a kitten...



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    Re: Bass Boost?

    very nicely put Xander




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    Re: Bass Boost?

    ya good job, if ur looking for an increase maybe u should look at a larger amp, that way ur wont be running into clipping and can get it louder



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    Re: Bass Boost?

    Quote Originally Posted by NewToTheGrounds View Post
    ya good job, if ur looking for an increase maybe u should look at a larger amp, that way ur wont be running into clipping and can get it louder
    Bingo




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    Re: Bass Boost?

    is there a way to tell if you are clipping your amp, or does it always happen when you turn the sub up on you head unit?




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    Re: Bass Boost?

    Set gains with a DMM.

    -Bill-



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    Re: Bass Boost?

    Find that vid with someone has an oscilloscope and shows the effects of bass boost and how it squares the wave...which is bad...doesnt let you sub cool proper...it may sound louder but its causing damage if not watched



    YOUTUBE VIDZ:

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    Re: Bass Boost?

    Quote Originally Posted by Rich B View Post
    If you didnt set your gains with the bass boost on you run the risk of clipping the amp, and possibly damaging your sub.
    will it be alright if you set your gains with bass boost on? would this prevent clipping and damage to the sub and still sound good? I ask because i have a bass control knob for my jl 500/1 and unfortunately it works by increasing/decreasing bass boost. thx.




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