Bad cab or bad amp?

Discussion in 'Amps and Cabs [BG]' started by MAJORdorMo, Dec 15, 2007.

  1. MAJORdorMo

    MAJORdorMo Guest

    Aug 24, 2007
    I recently acquired a free cab:

    I hooked it up to the headphone output of my 45 watt Behringer practice amp, and it had barely any volume with the amp turned all the way up. When the amp is played with the build in 10 inch speaker, it is too loud to even turn over halfway up.

    Is this because the cab is bad, or should I just get an amp (keep in mind I have no idea of the cab's wattage)
  2. amos


    Oct 23, 2003
    SE Portland Oregon
    First off, I can't see the cab in the picture at all.
  3. MAJORdorMo

    MAJORdorMo Guest

    Aug 24, 2007
    ^^It's the big brown thing....
    Could it also be because I was using an instrument cable, not an amp cable?
  4. willsellout

    willsellout I apologize in advance. Supporting Member

    Aug 13, 2002
    Fort Wayne, IN
    You used the headphone out? I wouldn't think that would power the speaker very well. I could be wrong though. Is there another output on the amp?

  5. MAJORdorMo

    MAJORdorMo Guest

    Aug 24, 2007
    There is no other output as it is just a practice amp.

    Well, I guess that answered my question.

    While I'm here, does anyone know if I can use an instrument cable to hook an amp up to a cab, or do I need a speaker cable?
  6. JimmyM

    JimmyM Supporting Member

    Apr 11, 2005
    Apopka, FL
    Endorsing: Yamaha, Ampeg, Line 6, EMG
    You can use an instrument cable temporarily, but you should use a speaker cable because bad stuff that I can't describe will happen.
  7. Instrument cables are generally shielded and have a relatively high gauge, which will cause extra impedance and energy loss as well as possibly causing a fire (with the shielding material, although this is unlikely). You aren't getting much volume because you aren't using a powered output, just a headphone out.
  8. slombovia


    Jul 15, 2003
    I am a determined follower of Jesus Christ and am a Mormon.
    Hmmm... bad karma or bad mojo?
  9. fdeck

    fdeck Supporting Member Commercial User

    Mar 20, 2004
    Madison WI
    HPF Technology LLC
    Headphone output is typically at a lower level than the speaker output. To use the speaker, you have to get at the actual speaker output of the amp, which requires Taking Apart.

    Instrument cable is relatively unlikely to do much harm with a solid state amp at low power. Still, a proper speaker cable is the conservative and safe thing to do.
  10. JonathanD

    JonathanD Guest

    Dec 13, 2006
    Atlanta, GA
    Headphone outs are for headphones! Not for speakers. If you don't have a speaker out it wont work. Also, you can blow up your head it its not the right OHM rating.

    The "big brown thing in the picture" is not easy to see, so mabe don;t be a smart @$$ to the guy asking when you took a crappy pic.

    It looks like a home stereo cab...from what I can make out.