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    CadillacMatt's Avatar
    CadillacMatt is offline Disturbing the Peace



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    Buzzing noise from amp

    Ok, so I got my AQ2200D all hooked up and running, and I was setting the gains today. I unhooked all of the speakers, played a 50Hz test tone, and slowly raised the gain... and the amp started making a buzzing noise about halfway. It was right below the voltage setting I was trying to achieve (figured into 2200watts) that the buzzing started.

    Is this normal? It stops buzzing when the gain is lowered enough. Or is something wrong? Thanks!




    References: S/T: garretpf, B/F: USMC7980(RoE), liljojo4711[/size]
    Car: 1995 Cadillac Sedan Deville
    Head Unit: Jensen VM 8113
    Fronts: Image Dynamics IDCTX65CS in custom door pods
    Front Stage Amp: Infinity Reference 475a
    Subwoofer: 18" Sundown Nightshade but no enclosure yet
    Electrical: Optima RedTop, KnuKonceptz KLMX 1/0ga, Big 3, MechMan Rhino H/O 250amp alt
    Other: 100+ sqft SSA Damplifier Pro




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    macq32's Avatar
    macq32 is offline CarAudio.com Elite



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    Re: Buzzing noise from amp

    its normal, greater gains > chances of feedback. Make it work with the gains you have or check to make sure your RCAs are isolated from everything else. I had that problem for a long time, RCAs too close to a speaker wire, seperated them and put a well protected RCA between the speaker wire and the crappy rca giving me the feedback and it took care of the problem



    Headunit: Kenwood eXcelon x791
    Front: Morel Tempo 6
    Amp - PG Xenon 200.4
    Subwoofer: SI Mag v3
    Sub Amp: PDX 1000.1



    Sold To - sctattooer, FunBoyThomper, Chereck04, beyap, xplayazplayzonx, Switt23Bought From - speedfreak28, Sir Smoke A Lot, connersdad19, NE14MX, dcmcki, joeybutts32 , lyttleviet, newtitan, mike75356, wmflyfisher, stopdrpnro, LaserRed38, ZellnerTraded With - Audiobahnuser18
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    CadillacMatt's Avatar
    CadillacMatt is offline Disturbing the Peace

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    Re: Buzzing noise from amp

    Ok thanks, I will check everything out. I plan on re-wiring the trunk anyways so I hope that'll fix it




    References: S/T: garretpf, B/F: USMC7980(RoE), liljojo4711[/size]
    Car: 1995 Cadillac Sedan Deville
    Head Unit: Jensen VM 8113
    Fronts: Image Dynamics IDCTX65CS in custom door pods
    Front Stage Amp: Infinity Reference 475a
    Subwoofer: 18" Sundown Nightshade but no enclosure yet
    Electrical: Optima RedTop, KnuKonceptz KLMX 1/0ga, Big 3, MechMan Rhino H/O 250amp alt
    Other: 100+ sqft SSA Damplifier Pro

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    macq32's Avatar
    macq32 is offline CarAudio.com Elite



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    Re: Buzzing noise from amp

    yea, i had same problem with the 475a, now that i think about it, the idiots that installed it at the time ran the R front speaker wire along with the rcas, and also crossed my ground wire, it was twice as long as it needed to be so rather than cutting it in half they looped it like a "U" against each other.

    ****ing stupid

    goodluck



    Headunit: Kenwood eXcelon x791
    Front: Morel Tempo 6
    Amp - PG Xenon 200.4
    Subwoofer: SI Mag v3
    Sub Amp: PDX 1000.1



    Sold To - sctattooer, FunBoyThomper, Chereck04, beyap, xplayazplayzonx, Switt23Bought From - speedfreak28, Sir Smoke A Lot, connersdad19, NE14MX, dcmcki, joeybutts32 , lyttleviet, newtitan, mike75356, wmflyfisher, stopdrpnro, LaserRed38, ZellnerTraded With - Audiobahnuser18
    RIPPED OFF BY NUKEITALL

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