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Effect of Buffer before Quaverato

Home Forums Quaverato Forum Quaverato FAQ & Support Effect of Buffer before Quaverato

This topic contains 3 replies, has 2 voices, and was last updated by  brach 1 week, 3 days ago.

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  • #6986 Reply

    MarkP
    Participant

    I just completed the build of a Quaverato. It seems to be working properly. I have however noticed a dramatic difference when the Quaverato has a buffer (or engaged pedal) before it, as compared to guitar straight into Quaverato.
    The buffer or engaged pedal into the Quaverato results in a significantly brighter tone and more volume than without.
    When the Quaverato is engaged without a buffer, it significantly darkens the tone, compared to the bypass signal.

    It is not really a problem, and I have experienced the same type of effect in other LFO modulation pedals.
    But I want to know if this normal for the Quaverato, or is there an issue here.

    Thanks in advance.
    Mark

    #7005 Reply

    brach
    Moderator

    Thank for the post Mark.
    Yes, what you’ve discovered is expected for the Quaverato. This happens because the high frequency signals have much less impedance going through the pedal input and U2A (the first opamp stage) than the low frequencies. You should be able to adjust the HPF and LFP trim pots (while testing it inline with a buffer pedal) to make it sound more natural. If you want to go deeper, a mod you can do to reduce this effect a buffer has on the brightness of the pedal is to add a capacitor in parallel to R3, which will allow the high frequencies to pass around U2A without being amplified/buffered.
    That may be more information that you wanted to hear, but hopefully that answers your question.
    Take care.
    -Brach

    #7007 Reply

    MarkP
    Participant

    Thanks for the reply. I am glad to know it is working as expected. I always have some buffered pedal upstream, and I prefer the brighter sound.
    The pedal sounds great. I especially enjoy the harmonic mix feature.
    The assembly instructions and board layout are excellent. And the build experience was very enjoyable.

    Mark

    #7008 Reply

    brach
    Moderator

    Mark,
    It’s great to hear that you are enjoying your Quaverato. Let me know if you have any more questions.
    -Brach

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