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    2.2uf capacitor for tweets running off HU

    I have HAT imagine tweeters that I would like to run off my HU. I have been told that I need a 2.2uf cap in order to do so. Do I just solder it inline to the positive wire running to tweeter, close to the tweeter?

    Is this a good one? Auricap 2.2uF 400V Capacitor 027-674
    The better ones only come 2.0uf and 3.0uf

    The headunit will be avhp8400bh. It has built in crossovers but not the 5000-6000 that I need.







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    Re: 2.2uf capacitor for tweets running off HU

    Correct



    have you been helped by me? i'd love to know. shoot me a PM.

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    Re: 2.2uf capacitor for tweets running off HU

    Thanks!!

    Was going to buy it, until I saw that shipping for 10$ worth of product, was about 25$.




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    Re: 2.2uf capacitor for tweets running off HU

    Quote Originally Posted by heebs 09gts View Post
    Thanks!!

    Was going to buy it, until I saw that shipping for 10$ worth of product, was about 25$.
    Did u try partsexpress.com? That's where I got my caps




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    Re: 2.2uf capacitor for tweets running off HU

    Quote Originally Posted by princ3cmo View Post
    Did u try partsexpress.com? That's where I got my caps

    that is what he linked.

    note that 2.2uF at 8ohms is 9000Hz
    2.2uF at 4 ohms is 18000Hz.

    i think you should verify the impedance of the tweeter, then buy a cap that gives you a 5k-6kHz crossover point

    even better would be to buy a 12dB/oct passive crossover. PE sells them for 4 ohm and 8 ohm.



    have you been helped by me? i'd love to know. shoot me a PM.

    *My 2001 Accord build log: http://www.caraudio.com/forums/car-audio-build-logs-cars-trucks-suvs/536049-2001-accord-ex-sedan-its-long.html]
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    Re: 2.2uf capacitor for tweets running off HU

    waiting for someone to say "capacitors dont do ****" haha




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    Re: 2.2uf capacitor for tweets running off HU

    Quote Originally Posted by keep_hope_alive View Post
    that is what he linked.

    note that 2.2uF at 8ohms is 9000Hz
    2.2uF at 4 ohms is 18000Hz.

    i think you should verify the impedance of the tweeter, then buy a cap that gives you a 5k-6kHz crossover point

    even better would be to buy a 12dB/oct passive crossover. PE sells them for 4 ohm and 8 ohm.
    2.2 uF is what Hybrid Audio recommends, which would imply that the tweeters are 12 ohms at the 6K crossover point. I might verify that someday soon...



    dave
    ----------
    1999 Buick Park Ave Ultra
    Head Unit: JVC KWHDR720
    EQ: Audiocontrol EQL
    Front Stage: Hybrid Audio Technologies Imagine 5.25 mids, Morel Maximo tweets
    Sub Stage: Boston G3 10", 0.5 cu ft sealed
    Amp: PPI Phantom 900.4
    Rear Fill: Boston SE953 6X9's

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    Re: 2.2uf capacitor for tweets running off HU

    Would I be able to just take a DMM to the wires on the tweeter, to find out the ohm rating?




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    Re: 2.2uf capacitor for tweets running off HU

    Quote Originally Posted by heebs 09gts View Post
    Would I be able to just take a DMM to the wires on the tweeter, to find out the ohm rating?
    No. The DC resistance won't be the same as the tweeter's impedance at the crossover frequency. Need an AC voltmeter and oscillator for that, which I have. HAT says 2.2 uF is correct, and the link you gave is to good quality ones.



    dave
    ----------
    1999 Buick Park Ave Ultra
    Head Unit: JVC KWHDR720
    EQ: Audiocontrol EQL
    Front Stage: Hybrid Audio Technologies Imagine 5.25 mids, Morel Maximo tweets
    Sub Stage: Boston G3 10", 0.5 cu ft sealed
    Amp: PPI Phantom 900.4
    Rear Fill: Boston SE953 6X9's

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    Re: 2.2uf capacitor for tweets running off HU

    yes, a DMM measuring DCR will give you an idea what the impedance is. DCR is slightly less than nominal impedance. should be sufficient to determine if it's 4 ohm, 6 ohm, or 8 ohm.

    given the ability for the imagine woofers to play up quite well, a high crossover point can work - if the speakers are on-axis.



    have you been helped by me? i'd love to know. shoot me a PM.

    *My 2001 Accord build log: http://www.caraudio.com/forums/car-audio-build-logs-cars-trucks-suvs/536049-2001-accord-ex-sedan-its-long.html]
    *2005 Scion tC Build Log: http://www.caraudio.com/forums/car-audio-build-logs-cars-trucks-suvs/516096-2005-scion-tc-sq-hertz-audison-pioneer-build-log.html
    *1998 Astro Van Build Log: http://www.caraudio.com/forums/car-audio-build-logs-cars-trucks-suvs/567468-kha-does-spl-build-1996-astro-van.html

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