Ampli-firebox volume difference between patches when IR is off

Discussion in 'Discussion' started by Scorstin, Jun 7, 2021.

  1. Scorstin

    Scorstin Member

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    Hello guys! Hope someone will have a solution for this:

    I'm usually running both my AFB and AA6 into a powered FRFR speaker. On AFB I have two channels set up (cleanish Plexi and dirty HBE), EQ'd and balanced to sound similar in terms of volume.

    Last week for a rehearsal I did not bring my FRFR speaker with me, as I have a tube amp + cab stored in the place. So I went into the effects return of the amp, obviously flicking the AFB switch to disable IRs on the 1/4 output. The problem I got here was that there was an enormous volume difference between the two patches this way - Plexi was very quiet compared to the HBE. I could just turn up the volume on it to match of course, but when running it again back at home via FRFR with the IR turned on, it was too much and I had to adjust the volume down to match again.

    So I'm thinking, how should I set this up if I want to play with no IR into my cab, but also use the XLR out with IR to FOH? I want to have equal volume between patches A and B no matter if I use IR or not.

    Have you had similar issues? If so, how did you fix them?

    I can provide more info if needed, but I'll appreciate anyone chipping in :) Thanks!
     
  2. Jace Nuzback

    Jace Nuzback Senior Member

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    What is the AMP block LEVEL parameter set to for each preset?
     
  3. Scorstin

    Scorstin Member

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    It's around -6dB for HBE and -3dB for Plexi from what I remember, will check later to confirm the exact numbers. Should I look for anything else while I'm checking, if it helps?
     
  4. Seven Heaslip

    Seven Heaslip Active Member

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    To match them when going through the FX loop of a real amp with the cab block off adjust the amp block volume level so both patches sound the same volume. Then to match for when using your FRFR adjust the level in the cab block to suit so both patches are matched volume wise when the cab block (IR) is on.
     
  5. Jace Nuzback

    Jace Nuzback Senior Member

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    For the standard AmpliFire, this would be correct. But the AFB doesn't provide a LEVEL control for the CAB block.
    Different amps, and thus different amp models, have different amounts of clean headroom which in the end up having different output levels.
    The only solution here might be to try a different combination of amp models than the Plexi and HBE.
    You could use the HBE on both A and B, but set the gain much lower on A.
     
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  6. Scorstin

    Scorstin Member

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    @Jace Nuzback thanks for the explanation. I'll try to find similar sounds using a single amp model. Are there any models you know of that would have this headroom/volume close by default? E.g. HBE and BE possibly? Maybe I could tune BE to be very similar to a edge of breakup Plexi I currently use, it seems closer than HBE. But maybe it's just a question of gain, I'll experiment with that too.

    Good to know I can still do this with AA6 if I ever need it.

    BTW that edge of breakup/crunchy Plexi is awesome, more dynamic than my valve amp! More pleasant to play even, reacts to my right hand attack like nothing else...
     
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  7. Seven Heaslip

    Seven Heaslip Active Member

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    Another way around this if you didn't want to change to different amp models is to just copy the patches of the 2 you use & save them in two of the 9 preset slots on the AFB with the cab block turned off & then equalise their volumes with the amp block & save. So you essentially have your 2 patches with the IRs for use with FRFR & duplicates with the IR off for use with a real amp.
     
  8. sny.der

    sny.der New Member

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    Did you try the same IR for both amps? Somet IRs have a significant volume difference.
     

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