Malekko - Wiard - Xmix

The  Malekko Wiard XMIX is a mixing/crossfading utility module.

I understand it's different from the 300 series Mixolator which used a  CA3280 transconductance amplifier.

 The XMIX is 8hp wide, 25mm deep, and consumes approximately 45mA power.

There are two inputs (X and Y). 

The Y input can be inverted via a switch.

Z controls the balance of X Vs. Y. 

Z has a CV input, along with an attenuator for CV amount. 

Positive and negative outputs are provided, as well as an Expand input which provides a unity input to chain the output of other modules (such as another XMIX).

Some uses for the XMIX (Manufacturer's manual):

– A 2 > 1 Mixer

– CV crossfading

– A signal inverter

– Audio rate amplitude/crossfading modulation

– With a single input, you can use the XMIX as a linear VCA

– Input different waveforms to create new wave shapes

-- waveshaping

– The X input normals into the Y input when nothing is plugged into Y. Invert the Y input with the switch, and crossfade the X signal VS the inverted version of itself

 

 

 

 

 

 

 

 

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There is a three pin connector on the back of the PCB that goes hot-ground-cold.

Connect this to an XLR or TRS and you have a low impedance balanced send.

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mAKING  a  ADSR Envelope.

You will need two Envelators. 

 

1. Set 1st to AD mode, and 2nd to AR mode.

2. send a trigger to the 1st Envelator.

3. send a gate to the second envelator .

4. take outputs of each Envelator into the inputs of the xMix

    AD Envelator plus output to X input of XMIX (X control set to max)

    AR Envelator plus output to Y input of XMIX (set Y polarity to plus and Y control to max).

5. The ADSR envelope is available at the XMIX plus output 

6.  The XMIX "Z" control acts like a "Sustain" control.  

     The "ZMOD" input can be used as voltage controlled sustain level input.   

 

Take the output of the xMix and input into a VCA 

The Wiard Xmix can be used as a mixer & as a VCA.

I find there is a little bit of audio bleed when I use the Xmix as a VCA.

I prefer to use a dedicated VCA for this task.

 

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Balanced (ring) modulation. 

• 1. Make sure the X & Y knobs are at full.
  2. Connect your carrier sine wave (or whatever) to the X input.
  3. The Y input is normalled to the X input so the carrier is going to X + Y.
  4. Switch the Y input polarity to negative (minus).
  5. Monitor the plus output.
  6. Adjust the Z control to get the best carrier null.
  7. Now run anything into the Z control input (modulator), Z Control is the volume for the modulation input.

 Thanks to "shady smiles" for the ring mod patch.

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Unbalanced modulation (VCA)

 

 X in = Audio in

+ out = Audio out.

Zero both Y & Z pots.

Z control pot is set to Max

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

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Links:

+ Muffs

+ waveshaping (youtube)