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Reload Thread: Trying to set my gains with a DMM.

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    Trepkos's Avatar
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    Trying to set my gains with a DMM.

    I unplugged the subs, turned all eq and bass boost and whatnot settings down, set the DMM to 200 DCV and played several test tones from 40-49hz to 50-59hz to 60-69hz to even 30-39hz and probed the positive and negatives of the amp with the positive and negatives of the DMM and the result? Absolutely no reading on the DMM...

    What am I doing wrong?



    Refs: BuckyBoy, 6spdcoupe, Harleyfx69, Blinkrazy
    1999 Regular Ford F150

    HU: Kenwood eXcelon KDC-X991
    Front Stage: 08' RainbowSLC 265.25 Components w/ CAL25 Silk Tweeter
    Front Stage Amp: Sundown SAX-100.2
    Sub Stage: 2x 12" Fi Q DVC 1
    Sub Stage Amp: Audioque 2200D
    Enclosure: 3.52 Dual Chambered Sealed Enclosure by BJ Fisher
    Deadening: RAAMAT BXT/Ensolite
    Wiring/Dis. Blocks: KnuKonceptz Kolossus/Krystal/Karma SS Wiring/JL Audio




  2. #2
    Rich B's Avatar
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    Re: Trying to set my gains with a DMM.

    You need to use AC, not DC on the speaker outputs of your amp.



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  3. #3
    bikinpunk's Avatar
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    Re: Trying to set my gains with a DMM.

    Switch to AC. Power from an amp to speaker is no longer DC; it is AC. This is what you're testing for.



    2006 Civic LX Sedan
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  4. #4
    xtremebassjunky's Avatar
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    Re: Trying to set my gains with a DMM.

    yup bikin said it.



    -Head Unit: Alpine-9886
    -Front Stage: 1 set of: DDA-W6.5's, DDA-W5.2's, and 3 sets of DD-T28's
    -Amps: 2x DDc4a's and 1x DD-C2b
    -Subs: 4x DD-3515E powered by 2x DD M4 -- giving me over 10kwrms... 154+ @ 24 Hz
    -Alternator: Stock 130a + 2 x 260a @ 15v Ohio Gen
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    Re: Trying to set my gains with a DMM.

    Quote Originally Posted by xtremebassjunky View Post
    yup bikin said it.
    i think richb said it first actually



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  6. #6
    xtremebassjunky's Avatar
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    Re: Trying to set my gains with a DMM.

    lol it wasn't up when i wrote that...

    thanks for the correction George



    -Head Unit: Alpine-9886
    -Front Stage: 1 set of: DDA-W6.5's, DDA-W5.2's, and 3 sets of DD-T28's
    -Amps: 2x DDc4a's and 1x DD-C2b
    -Subs: 4x DD-3515E powered by 2x DD M4 -- giving me over 10kwrms... 154+ @ 24 Hz
    -Alternator: Stock 130a + 2 x 260a @ 15v Ohio Gen
    -Batteries: Batcap 3000 in front & 8400 + 4000 in back
    Refs: Alan Dante, Thilo Stompler, Nomad40, 2000LaDe, xplicitACTS, sundownz, djman37, Hoss, SPL140.2, bmxbikes, casper97ta, SkatinBassPLaya, Bibby, SeanDub, hazardous0388, Trunk_Monsta
    Team Outcast

  7. #7
    bikinpunk's Avatar
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    Re: Trying to set my gains with a DMM.

    Quote Originally Posted by IgnoreMe View Post
    i think richb said it first actually
    Yea, but I had more sentences so it took longer.



    2006 Civic LX Sedan
    Pioneer P9. Audison BitOne. JL Audio HD. Scanspeak. Acoustic Elegance.

    DIYma Refs:
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  8. #8
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    Re: Trying to set my gains with a DMM.

    Quote Originally Posted by bikinpunk View Post
    Yea, but I had more sentences so it took longer.

    Your explaination made more sense than mine did.



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  9. #9
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    Re: Trying to set my gains with a DMM.

    Quote Originally Posted by Rich B View Post
    Your explaination made more sense than mine did.
    haha. This is the nicest I've ever seen on this forum.



    2006 Civic LX Sedan
    Pioneer P9. Audison BitOne. JL Audio HD. Scanspeak. Acoustic Elegance.

    DIYma Refs:
    http://www.diymobileaudio.com/forum/itrader.php?u=1891

    Caraudio.com refs:
    Groggy23, Radridd, bdubs767, 6spdcoupe, Cahm Rohn, Soydeedo, Lil_KB

    E-bay Feedback: bikinpunk

  10. #10
    Trepkos's Avatar
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    Re: Trying to set my gains with a DMM.

    Much thanks



    Refs: BuckyBoy, 6spdcoupe, Harleyfx69, Blinkrazy
    1999 Regular Ford F150

    HU: Kenwood eXcelon KDC-X991
    Front Stage: 08' RainbowSLC 265.25 Components w/ CAL25 Silk Tweeter
    Front Stage Amp: Sundown SAX-100.2
    Sub Stage: 2x 12" Fi Q DVC 1
    Sub Stage Amp: Audioque 2200D
    Enclosure: 3.52 Dual Chambered Sealed Enclosure by BJ Fisher
    Deadening: RAAMAT BXT/Ensolite
    Wiring/Dis. Blocks: KnuKonceptz Kolossus/Krystal/Karma SS Wiring/JL Audio

  11. #11
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    Re: Trying to set my gains with a DMM.

    you guys are sooo cute!




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