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SVT 4 PRO-only biamp mode works...anybody know why?

Discussion in 'Amps and Cabs [BG]' started by soupninja, Sep 18, 2010.

  1. soupninja


    Jan 3, 2010
    I did a search nobody seems to have the same problem

    So this happened at the recording studio, I had it out of biamped mode(stereo) and into just the top 4x10 on my swr 8x10. The very next day the same setup would not work. Only the biamped mode would produce any sound ,and it sound a little overly distorted..not crazy distortion but somthing you notice not being there before.

    Any thought before I take it to GC on my extended warrenty?


    Sep 22, 2009
    Bend Oregon
    What speaker cable you using? and you said you had it out of stereo mode what did you mean by that??
  3. RickenBoogie


    Jul 22, 2007
    Dallas, TX
    Just check all cables, connections, and switches.
  4. loend68

    loend68 Supporting Member

    Jan 14, 2008
    Endorsing Artist: Spector Basses, T.C. Electronics
    Sounds like you might have lost one of power amps. Something similar happend to me. It would work in bridged mono mode but didn't sound great and didn't have much volume. Took it in and one side (one amp) was not working. Try plugging into the other side and see if it works.
  5. Jerrold Tiers

    Jerrold Tiers

    Nov 14, 2003
    St Louis
    OK to get biamped mode, you patch the biamp outputs to the power amps with short patch cables.......

    Consequently, when you DO NOT want that, you have to un-patch them. Otherwise you still get just the biamp mode.

    If you try to do bridge mono with it patched for biamp, you will get some strange stuff going on, and probably distortion.

    Are you sure you have it set up for what you want? Everything plugged where it should be?
  6. soupninja


    Jan 3, 2010
    yeah Im positive its all hooked up correctly, When i have it in biamped mode I use the speakon it came with. When its not in biamped mode, the push button is out and I have just two regular speaker cables going into seperate cabs.

    Also NEither side will work when its out of biamped mode tried alot of different speaker cables, none worked
  7. buzzbass

    buzzbass Shoo Shoo Retarded Flu !

    Apr 23, 2003
    you have it hooked up wrong. that speakon connector is for bridge mono mode, not bi-amp mode.
  8. Jerrold Tiers

    Jerrold Tiers

    Nov 14, 2003
    St Louis
    Are we REALLY discussing "biamp" mode, with a "lows only" cab and a "highs only "cab? Two patch cords on the back, and using the crossover frequency and balance controls?

    If I had to guess, putting together everything you mentioned, I'd say you were really talking about "bridged mono" mode....... NOT "biamp" mode
  9. soupninja


    Jan 3, 2010
    yeah sorry got the words mixed up I ment using bridged mode i use the speakon cable.
    Let me redo everything

    It works in bridged mode with the speakon cable that I got with the amp, sounds a little more distorted than usual.

    It will not work in the other mode, no sound whatsoever, im not crossing over anything, just trying to run to two seperate cabs..does not work.

    I may just take it to GC with the warranty, it looks as though Im having problems conveying what I mean.
  10. BassmanPaul

    BassmanPaul Inactive

    A picture is worth a thousand words. If it has a warranty take it back and have the store check the unit out.

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