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    argenis69's Avatar
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    Icon14 Eq tuning

    Hi CA, I would like some experienced opinions and/or suggestions on how to tune or equalize properly my interior speakers. In a 2002 nissan maxima I have 6.5'' cadence component speakers on front and 5.25'' beyma mid high speakers on the rear, powered by a 500rms 4 channels amp.
    I recently installed an eql from audiocontrol to eliminate some bass and get clear sound from the interior speakers, but I've tried some much to get it tuned right, but I can't get it to sound right, and after that the sound output is also lower, and now if I put the volume loud on the hu the interior speakers start to sound like with some cracking sound. Also, if this helps, I recently bought an nano oscilloscope but haven't used it yet.

    1-What can I do to fix this issue? If possible, with specifications.
    2-Is it better to buy and put bass blocker filter to each speaker to eliminate the use of the eq? If yes, which is the best frequency to buy the blocker?

    Thank you.







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    Re: Eq tuning

    Sounds like you need a crossover instead of an eq. A crossover will help you "assign" a frequency range to each speaker or set of speakers. An eq will only boost or attenuate those frequencys. Not sure if that audiocontrol piece as crossover adjustments.




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    Re: Eq tuning

    you should avoid adding processing equipment if it's no absolutely necessary. you should have two high-pass filter (let's high frequencies pass while lower ones die) options. the first is on your head unit. get the instructions out for it and see what you can do. try 80Hz first. the second option is on your 4-channel amp. switch it to HPF (high pass filter) and adjust it to around 80Hz and see what that does for you.



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    Re: Eq tuning

    Here you go buddy, this helped me when I was working with EQ.
    8 Easy Steps To Better EQ

    cliff notes:

    to find what frequency to boost/cut, listen to your music, find an instrument that you want to stand out or cut back in the mix, boost a frequency up untill you find what frequency affects that instrument.

    Now a general rule of thumb cutting is a better option than boosting for sound quality.
    cut narrow
    boost wide
    (if you can change the width of the band)

    ^^above post was actually made based on title of thread. Reading your post, I agree with the fact you need a crossover more than anything. A crossover will cut off frequencies from getting to your speakers, (I.E. low bass frequencies). A crossover can be a LPF (low pass filter) or HPF (high pass filter) For cutting the low frequencies off to your speakers you want to setup a HPF (you can buy a passive HPF, or use an active HPF built into your HU, or amp).




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    Re: Eq tuning

    Bump




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    calebkhill's Avatar
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    Re: Eq tuning

    Quote Originally Posted by argenis69 View Post
    Bump
    Take the eq out of your car and use your hu and amp crossovers properly.

    Also set your hu volume and amp gains properly.

    This well help. That eq your using is probably causing problems.



    "When I listen to a stereo loudspeaker playback in my room and an auditory scene has formed in my mind, how would I know that what I hear is an accurate replica of an auditory scene that could be had at the recording venue? Or more generally, that this is an auditory scene that could have existed at all?"


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    Re: Eq tuning

    Thanks,

    -Is there any opinions about using bass blocker filters on the speakers instead of adding the crossovers? If yes, what frequencies should I block?




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    Re: Eq tuning

    The crossovers on your head unit and amp are bass blockers.
    Subs: lpf 80hz
    Mids: bpf: 80hz-8khz
    Tweets: hpf: 8khz

    There's your settings, let us know how it sounds.
    Whatever allows you to set these options, whether it be the head unit or amp.



    "When I listen to a stereo loudspeaker playback in my room and an auditory scene has formed in my mind, how would I know that what I hear is an accurate replica of an auditory scene that could be had at the recording venue? Or more generally, that this is an auditory scene that could have existed at all?"


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