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Is it safe to use an effects send from a head out to a combo?

Discussion in 'Amps and Cabs [BG]' started by Blacksheep, Jul 29, 2007.


  1. Blacksheep

    Blacksheep Destroyobot

    Sep 7, 2006
    Manitoba, Canada
    Hello,
    I just want to know if it would be safe for me to use my effects send in the back of my Carvin head out to my SWR LA15 combo. My cab is only a 410, so I'd like the extra crunch of the 15, which it can seriously achieve. So would that be alright? To run my halfstack like normal, except use the effect out to send a signal to the LA15 combo? Thanks
     
  2. Blacksheep

    Blacksheep Destroyobot

    Sep 7, 2006
    Manitoba, Canada
    Bump. I just need a qualified yes or no...
     
  3. ::::BASSIST::::

    ::::BASSIST:::: Progress Not Perfection.

    Sep 2, 2004
    Vancouver, BC Canada
    I'm interested in this answer as well.
     
  4. Try it. Make sure you don't use the speaker out though, just an FX out. Plug it into any input on the combo (you can use a bass input if you want to EQ and such, or you can go for a FX in to bypass the preamp). If the volume on the main rig goes silent (such as with a headphone out or w/e) then you need to split the signal chain and send it to the FX in.
     
  5. Blacksheep

    Blacksheep Destroyobot

    Sep 7, 2006
    Manitoba, Canada
    I already tried it. I know it works. I want to know if it's SAFE.
     
  6. remo

    remo

    Jan 15, 2005
    AFAIK the FX out sends a line level signal, the instrument IN on your combo is designed to accept an INSTRUMENT level signal... it is OK to send a line level signal into your instrument jack but you might need to pad the input or reduce the input gain so you don't overload the combo's preamp. Even if you do overload the preamp (with a line level signal) it won't hurt the combo you will just get some preamp distortion.

    So YES it's safe but watch the preamp gain...
     
  7. Blacksheep

    Blacksheep Destroyobot

    Sep 7, 2006
    Manitoba, Canada
    So, just make sure my combo doesnt sound like it's going to blow up and everything'll be fine?
     
  8. hbarcat

    hbarcat Supporting Member

    Aug 24, 2006
    Rochelle, Illinois
    Yes it is safe to send a line level signal to an input jack used for instrument level, but it may adversely affect sound quality if you don't take care to turn down the input volume to a level that won't introduce distortion in the preamp. If you typically have the input set to 6 or 7, for example, you may need to turn it down to 2 or 3 for optimum results.
     
  9. bongomania

    bongomania Gold Supporting Member Commercial User

    Oct 17, 2005
    PDX, OR
    owner, OVNIFX and OVNILabs
    +1 right. Safe, but likely to be distorted unless you take measures (like turning down the input).
     
  10. Or go from the effects out on the head into the effects in on the combo, which will bypass the combo's preamp. A line signal sounds MUCH better through the effects in than an instrument input IMO/IME.
     
  11. smogg

    smogg

    Mar 27, 2007
    NPR, Florida
    I'm not crazy, I'm just a little unwell


    +1 that's the way to do it
     
  12. Blacksheep

    Blacksheep Destroyobot

    Sep 7, 2006
    Manitoba, Canada
    Should I use the Tuner Out, or the Effects out?
     
  13. hbarcat

    hbarcat Supporting Member

    Aug 24, 2006
    Rochelle, Illinois

    They come from the same source and will sound the same. The only difference between the two is the tuner out will be always providing sound while the FX out can be switched on and off, usually by footswitch.
     
  14. vtwo

    vtwo

    Dec 16, 2006
    Connecticut
    +1 FX send to FX return.
     

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