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Reload Thread: What would you set the HPF and slope on these?

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    phish368's Avatar
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    What would you set the HPF and slope on these?

    What would you set the HPF and slope on a tweeter that is rated 4 KHz - 25 KHz 3 dB ?

    Thanks!



    Alpine CDA-9887, JL Audio 300/4, JL Audio 250/1, JL Audio VR650-CSi, Boston Acoustic FX93, Dual eD 11Kv.2 Subs Enclosed Box




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    Upgrayedd's Avatar
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    Re: What would you set the HPF and slope on these?

    need moar specs




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    eharri3's Avatar
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    Re: What would you set the HPF and slope on these?

    What it's rated, ie published requency response figure, does not = what it plays well at. The configuration of your system, positioning, and the amount of power applied to the driver come into play .



    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: What would you set the HPF and slope on these?

    Sorry about that.

    Basically what I am trying to do is to take JL Audio VR-650csi components, removing the included passive x-over and go active off of the Alpine CDA-9887 3-way feature. I'm doing this mainly because the tweeters are in the A-pillars and the drivers are in the lower part of my doors and the imagining ***** this way. I can't make any major changes to the car so I have to keep the speakers where they are.
    I will be driving them off of a JL Audio 300/4 amp which is rated for 75x4.

    Here are the specs of the specific JL Audio VR series Tweeter (VR075-CT) in question.

    Continuous Power Handling: 50 Watts (with appropriate crossover)
    Peak Music Power: 125 Watts (with appropriate crossover)
    Rec. Power Range (per channel): 2 - 50 Watts
    System Efficiency: 89 dB @ 1W/1m
    95 dB @ 1W/0.5m
    System Nominal Impedance: 4 ohms
    System Frequency Response: 4 KHz - 25 KHz 3 dB



    Alpine CDA-9887, JL Audio 300/4, JL Audio 250/1, JL Audio VR650-CSi, Boston Acoustic FX93, Dual eD 11Kv.2 Subs Enclosed Box

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    eharri3's Avatar
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    Re: What would you set the HPF and slope on these?

    OK now can you articulate exactly how going active will cure the problems caused by your speaker placement? Maybe I'm a tard but I don't exactly understand your goals.



    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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    Rich B's Avatar
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    Re: What would you set the HPF and slope on these?

    Quote Originally Posted by eharri3 View Post
    OK now can you articulate exactly how going active will cure the problems caused by your speaker placement?

    Probably by using time alignment, which can only be done on an active set up.



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    Re: What would you set the HPF and slope on these?

    Quote Originally Posted by Rich B View Post
    Probably by using time alignment, which can only be done on an active set up.
    Correct. Time Alignment which is built into the Apline CDA-9887



    Alpine CDA-9887, JL Audio 300/4, JL Audio 250/1, JL Audio VR650-CSi, Boston Acoustic FX93, Dual eD 11Kv.2 Subs Enclosed Box

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