Using two preamps with one amp via the fx loop

Discussion in 'Amps and Cabs [BG]' started by victor5string, Apr 11, 2012.

  1. victor5string

    victor5string Guest

    Nov 11, 2011
    What I'm looking to do is run my preamp and main amp together but only using the power amp of the main amp.

    What I want to be able to do is a/b between the two preamps but also have the ability to blend them when needed. So an aby pedal with a blend knob on the y section. I've got a boss ls-2 currently but in practice this will only alow me to a/b or blend but not both. Below is a signle chain using the boss which if this idea would work would be similar to a pedal I would have built.

    Here is a signal path I was thinking of if I was using the boss ls-2 but it's only a mix of the two.
    *(Bass > LS-2 Input, LS-2 Send A > Gallien Krueger *input, Gallien Krueger FX send > LS-2 Return A, LS-2 Send B > input of Pearce preamp > pearce preamp FX send > LS-2 Return B, LS-2 Output > Gallien Krueger *FX return.) Set the LS-2 to A-B Mix and use the knobs on it to blend the sounds and correct any level mismatch.

    What I want to know is would this work? Would I be able to choose my pre a/b and when I want blend the two together?(not using the boss custom pedal will be made aby with blend)

    Cheers guys
  2. Stumbo

    Stumbo Guest

    Feb 11, 2008
    Which GK amp are you using?
  3. victor5string

    victor5string Guest

    Nov 11, 2011
    Currently a fusion 550
  4. Jazzdogg

    Jazzdogg Less barking, more wagging!

    Jul 29, 2006
    San Diego, CA
    When I plug a second pre-amp into the effects loop of my main amp, I can switch the second pre-amp in or out of the signal path with a foot pedal that engages or disengages the effects loop.
  5. C741


    Feb 14, 2009