What is the best way to blend two pickup signals on stage?

Discussion in 'Acoustic Instruments' started by Ozzy Slant, Apr 4, 2019.

  1. Ozzy Slant

    Ozzy Slant Member

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    Hi all,

    Any suggestion on how to blend UST and a soundhole pickup signals together on stage? I also need to do this in a way that allows me to control the blend and the master output effortlessly on stage, because my Yamaha LL16 has no built in preamp or controls.

    Right now I am thinking of either a passive signal blender like Art SplitMix4 or a small mixer like Behringer Zenyx 1002B to blend two guitar signals into one output. I would also like to run this blended signal still into an effect pedal / preamp (like my TC-Helicon Play Acoustic).

    SplitMix4 seems perfect in the sense that it is a compact unit and a simple, passive blend of the two signals. A mini-mixer on the other hand would allow some EQ:ing for the piezo before the blend, which might be great, and I would have use for the mixer in other applications as well.

    I don't know if a cheap mixer and its preamps would have bad impact on the tone though? And is it even ok to take the output from a mixer into a preamp / effect unit?

    Thanks for any help and suggestions!
     
  2. Crowder

    Crowder Dang Twangler Silver Supporting Member

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    If both pickups are installed in your guitar, you could have them both wired to a stereo endpin jack. Then you could use one stereo cable out of your guitar that would carry both sources. At the other end, you could use a stereo-to-mono splitter to separate the sources into a mixer or preamp(s).

    There are also several acoustic preamps that are designed to separate a stereo send into two individual channels and then combine them to a single output. With one of those, you could plug your stereo cable right into the preamp and still have control over each pickup independently.

    I think the Radial PZ-Pre does this:

    https://www.sweetwater.com/store/de...e-pz-pre-2-channel-acoustic-instrument-preamp
     
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  3. DRS

    DRS Member

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    OP

    You have 2 complete separate pick-up systems in 1 guitar and they are both passive? Do you have 2 separate output jacks?
     
  4. Barnzy

    Barnzy Member

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  5. walterw

    walterw Gold Supporting Member

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    why? what's the goal in doing that?

    also, do you already have the pickups in question? what are they?

    the main thing is that the UST needs to first hit a specific piezo preamp made for USTs or it will sound horrible, and ideally that preamp should be built into the guitar.

    at that point, many built-in active UST systems like the baggs element or fishman matrix have a "pass-thru" connection for a second pickup, so you can use a stereo TRS cable and access the two pickups separately downstream.
     
  6. walterw

    walterw Gold Supporting Member

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    no good, unless both pickups are already buffered through preamps before they hit this box. it only has 220kΩ input impedance, too low for a passive mag pickup and way too low for a passive UST.
     
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  7. walterw

    walterw Gold Supporting Member

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    yep.
     
  8. mrmurph

    mrmurph Member

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    I have a DTar Solstice pre amp that will accept either a stereo jack or 2 separate mono jacks and allow you to blend and mix equalization on the signals from both channels. I use a single XLR to send the blended signal to the board from there. But I believe you can also send a stereo signal out as well. I would have to go look at it again to confirm that. Having said that, I rarely use the sound hole mic on the guitars I have that are equipped with both, having found that the Pure Mini under the bridge plate works great and is easier to control feedback etc.
     
    Last edited: Apr 13, 2019 at 9:40 PM
  9. TwoHandsTenThumbs

    TwoHandsTenThumbs Silver Supporting Member

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    I use a combo of K&K and Sunrise pickups in my flattop guitars.

    Stereo TRS jack. TRS cable. TRS to TS / TS splitter box vs. using an insert / y cable.

    The K&K is wired to the Tip, the Sunrise to the Ring. The Sunrise signal, after the splitter, hits a Sunrise buffer box. then one channel of a Red Eye Twin.

    The K&K hits the second channel of the Red Eye Twin. Perfect impedance match.

    Individual level controls. I use the A+B setting on the preamp.

    A tuner pedal in the preamp’s effect loop mutes the output at the XLR when engaged.

    XLR to house, or to a QSC K10 for solo gigs.

    With 9v to barrel cables, and a Cioks power supply, the splitter, tuner, buffer, and preamp / DI all fit on an old school Pedaltrain Nano, the Cioks mounted underneath.

    I’ve been using this rig, happily, for the better part of a decade.

    Depending on stage volume and accompanying instruments, I adjust the balance to suit.
     
  10. DRS

    DRS Member

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    What happened to the OP?
    One and done?
     

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