Always consult the official Owners Manuals first
Wah block
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Contents
Manual
5.33 Wahwah (WAH) — 16.13 Setting up a Wah Pedal —| 16.13.1 Using the Onboard Pedal Jack — 16.13.2 Using an Expression Pedal on a MFC-101 — 3.2 The PEDAL Jack
User contributions
Wah models
- Currently available models:
- FAS Standard – Equivalent to the “Bandpass” setting in earlier firmware.
- Clyde – Based on an original Vox Clyde McCoy wah.
- Cry Babe – Based on a Dunlop Cry Baby.
- VX846 – Based on a Vox V846-HW handwired wah.
- Color-Tone – Based on a Colorsound wah.
- Funk – Modeled after the “Shaft” sound.
- Mortal – Based on a Morley wah/wolume pedal.
- VX485 - Based on a Vox V845.
Position of the Wah block
- A wah usually goes before the amp. Unless you're Tom Morello.
Preventing thump when engaging the Wah
- Cliff (answering a question about hearing a thump when auto-engaging a Wah): "The thump isn't the wah, it's the Input Impedance changing. If your preset is set to Auto for the Input Z, when you engage the wah the impedance switches. This causes a slight thump if you are playing since the load on your guitar changes. If you want to avoid this, turn Input Z to 1M OHM (Input Z is in the INPUT/GTE page of the Layout menu)." Source
- Cliff: "Set the Input-Z on the preset to 1M rather than Auto. The reason the Wah engages abruptly is because it switches the input impedance. Setting Input-Z to 1M overrides the impedance switch (and, frankly, sounds better IMO)." Source
Wah tracking parameter
- Cliff: "Tracking controls how much the Q changes with the Control knob. The Q in a wah is not constant. The amount of Q change varies from brand-to-brand and model-to-model. It even varies between identical models due to component tolerances." {http://forum.fractalaudio.com/axe-fx-ii-discussion/79738-small-tip-wah-block-tracking-parameter.html#post969579 Source]
- Cry Baby model: decrease Tracking to make this wah type sound more "vowel". Source
Virtual wah toe switch
- Use Auto Engage with Off Val set to 95% to switch off the wah automatically at toe-down.
Various wah tips
- The random wah effect is also known as "seek wah", based on a Z.VEX effect. For a more pronounced effect add a Formant filter, attched to the same controller.
- Decrease Max Freq to make a high gain wah tone cut better through the mix.
- See Envelope filter for "auto wah" tips.
