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SVT-15 x 2 Phase Issue

Discussion in 'Amps and Cabs [BG]' started by Lagaupia, Apr 6, 2014.


  1. Lagaupia

    Lagaupia Supporting Member

    Apr 23, 2007
    RI
    I recently got 2 Ampeg Classic Series SVT-15E's.

    I plugged in my SVT and thought it sounded thin. I know that the stock speakers in these cabs only handle 200w but still thought it should have sounded better than it did.

    I took my GK MB500 and hooked it up to both cabs individually and they both sounded great.

    Could I be experiencing a phase issue with these cabs even though they are identical?
     
  2. lokikallas

    lokikallas

    Aug 15, 2010
    los angeles
    Search "battery test"
     
  3. Register_To_Disable

  4. Try Daisy chaining the cabs?
    Back when I had a LMII when I plugged 2 cabs into the 2 speaker out jacks I had phase issues. Daisy chained em & all was fine 😨😨😨
     
  5. B-string

    B-string Supporting Member

    Short answer. Yes.
    It is always possible for the cabs to be out of polarity. Either by cable wiring or internal cab wiring.
     
  6. walterw

    walterw Supportive Fender Gold Supporting Member Commercial User

    Feb 20, 2009
    Disclosures:
    alpha-music.com
    +1 on the 9V battery test:

    plug a 1/4" cable into the cabs, then touch a 9V to the other end; when you touch the + of the battery to the tip of the cable and the - to the sleeve, both speakers should jump forward.

    you should do this test on any cab you get, especially used.
     
  7. JimmyM

    JimmyM Supporting Member

    Apr 11, 2005
    Apopka, FL
    Disclosures:
    Endorsing: Ampeg Amps, EMG Pickups
    Yep, would bet money that's the problem.