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Hissing Intermittent Noise in Avatar Cab

Discussion in 'Amps and Cabs [BG]' started by DavePlaysBass, Oct 4, 2009.


  1. DavePlaysBass

    DavePlaysBass Supporting Member

    Mar 31, 2004
    CO
    I am trying to trouble shoot an intermittent noise that seems to be associated with digging in on the D (5th fret A) and its octave. If I hold the notes out for a while, they get the static as the notes decay. Once I get it going it is pretty pronounced but I gotta pick at it to get it started.

    I had problems with my HD-350 way back and thought maybe is was the head. But if I run it thru an Aggie 112 cab, no hiss.

    It seems to be when I run it with the Avatar cabinet and I have switch speaker cables. I turned the tweeter completely off and this helped but did not fix it. Does this sound like a blown speaker? I guess not given that the tweeter turned down seem to eliminate much of the hiss?
     
  2. chasegriff

    chasegriff

    Nov 19, 2007
    Sounds like a ripped speaker to me.
     
  3. IvanMike

    IvanMike Player Characters fear me... Supporting Member

    Nov 10, 2002
    Middletown CT, USA
    sounds more like a buzz than a hiss...resonating at those frequencies. the trick is to find out if it is a bad speaker or a resonance or anomaly with the cab itself.
     
  4. rumblethump

    rumblethump Supporting Member

    Mar 25, 2000
    Pioneer CA. 95666
    Check the torgue on the speakers. Once I thought I had a blown speaker. Buzzed at certain frequencies. It turned out to be a loose T nut inside the cab.
     
  5. I just went thru this same problem with my Avatar 410 Neo and it turned out to be a loose screw on the tweeter. 1 of the four screws that hold the horn itself to the driver. Tightend all four, problem solved. Hope this helps.
     
  6. DavePlaysBass

    DavePlaysBass Supporting Member

    Mar 31, 2004
    CO
    Thanks guys. I will take a look at the hardware.
     

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