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Noticeable latency Output Level/ Headphones volume control.....

Discussion in 'Axe-Fx II Discussion' started by nicolasrivera, Oct 3, 2013.

  1. Rex

    Rex
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    Correct. The Ultra had a regular analog pot.
     
  2. Rex

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    The Axe II uses stepped digital attenuators for two reasons that I know of: to maximize signal-to-noise ratio, and to prevent the problem of "scratchy" pots that can develop on older devices.

    Stepped attenuators get noisy when you turn them quickly, so their response has been damped to minimize that noise.
     
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  3. Rex

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    The last changes to how the Output Level knobs work was made back in Firmware 3.
     
  4. nicolasrivera

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    Ok, thanks for this.... now i HATE Stepped attenuators!!!!
     
  5. clarky

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    the Axe goes into my mixing desk....
    the faders sound fine to me....


    sorry about that...
    I'll get me coat..
     
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  6. Rex

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    Yeah, I prefer the feel of an analog volume pot (when it's working properly—I hate 'em when they get crunchy). I don't quite understand how a pot placed after D/A conversion would hurt the signal-to-noise ratio, but the current stepped attenuator is turning out to be less of a bother than I thought it would be.
     
  7. FractalAudio

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    To place a pot after D/A requires running cables to/from the front panel. These cables can degrade signal quality and pick up noise. The pots on the front panel of the II are remote controls for the digital pots. The signal never passes through them.

    The digital pots also allow us to boost the level from the D/A and then attenuate it precisely to improve output SNR. The Ouput X Boost/Pad feature would be impossible without digital pots.
     
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  8. Rex

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    Clears that up. Thanks, Cliff.
     

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