Zvex Ooh Wah II

Zvex Ooh Wah II

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Ooh Wah II, Wah-Wah/Auto Wah/Filter for Guitar from Zvex.

3 user reviews
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Zvex Ooh Wah II tech. sheet

  • Manufacturer: Zvex
  • Model: Ooh Wah II
  • Category: Wah-Wah/Auto Wahs/Filters for Guitar
  • Added in our database on: 04/24/2006

We have no technical specifications for this product
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Zvex Ooh Wah II user reviews

Average Score:4.7( 4.7/5 based on 3 reviews )
 2 reviews67 %
 1 user review33 %

xxmartinxx's review"Oooooh... waaaaaaaaaaaaaah..."

Zvex Ooh Wah II
- Speed switch
- Step knob
- Frequency knobs
- Many little LED's for each frequency
- 9 Volt adapter requires modification or replacement bottom plate.
- Hand painted enclosure
- True bypass


I don't know if you can call this an auto wah (since it only does sample/hold), but it's more of a randomizer/arpeggiator that gets you those cool breaking sounds. What makes this unit different than the other devices that do things similar on the market is its ability to allow you to set the amount of certain frequencies you want (or if you want, remove them entirely) and its ability to do either a straight step pattern or random. I haven't seen one that allows you to do both, other than this pedal. What this doesn't allow you to do is a standard sort of auto wah.

The Speed switch controls the how fast the pedal cycles through the frequencies. The Step knob controls how many steps it will take during that cycle. There is not too much to confuse someone here.


I had never noticed the pedal sucking tone or altering the tone of the guitar. It always seemed fairly transparent. The effect always sounds alright. The ability to change the amount of frequencies is extremely helpful in creating sounds that you want. It wasn't as musical or extreme sounding as say the original version of the Robotalk, but I think that loss is worth what is gained.


There are a bunch of these types of pedals on the market these days (the original Robotalk, Subdecay Proteus, Subdecay Prometheus, etc including some of ZVex's other pedals (Seek Wah, Seek Trem, Tremorama, etc). For my uses, this is the one I enjoy the most. It doesn't have nearly as many features as say the Prometheus or quite the same sound quality, but the ability to change the amount of frequencies or remove them is huge.

The unit is fairly pricey, as all of these types of pedals tend to be. I believe that these still feature hand painted enclosures, so that is nice. It also makes you feel kind of bad about stepping on it. I think for the price it would be nice to have an actual auto wah feature, but I never use them anyway.

thierryvb's review (This content has been automatically translated from French)

Zvex Ooh Wah II
We could call this a step-analog wah.
But as it is indescribable, it is better to go to:
https://www.zvex.com/effects.html (mp3, video, user manual ...)


There's lots of little knobs to turn, it's very funny!
- A mini switch to select between 4, 6 or 8 step per cycle
- 1 knob to select the speed of the cycle
- 1 knob for each step of each operating cycle as a wahwah (but fixed)
- 1 footswitch on / off
- 1 footswitch "back to the beginning of the cycle"


The possibilities are vast, soft ripple of the cutting type tremolo ground thoroughly.
In any case the sound is fabulous.
One small problem: My OohWah "clipped" when two knobs settings neighbors opposed.
The gap is too large between the two sounds.
There is still an enormous range of possible settings, giving the sounds that were unknown to me until then. In short, it's everything I love.


I use it on a guitar but I think it will also mix well with an analog synth.
I love Zvex effects, especially those with an "analog sequencer", so I'm satisfied.
In addition, I ask a tap-tempo Cusack Music, to use my OohWah on stage in any circumstances.
Used on ebay States, it's worth.
It's small, it is very expensive but when you love ...
I do not mind one or two!

Anonymous 's review (This content has been automatically translated from French)

Zvex Ooh Wah II
The Ooh Wah Wah II is a sequential, then whatever name we give it, to get an accurate idea better to visit the site Zvex.
Zack Vex described as the combination of a tremolo and a wah, finally saying to be more precise, a tremolo and fixed 8-wahs.

To my knowledge, only one other pedal offers currently being considered: the Voodoo Lab Wahzoo.

- Built and painted by hand in the USA Zvex
- Fully analog
- Switch on / bypass
- Switch seek / random
- Selector 4, 6 or 8 "no", that is to say wahs
- Speed ​​of the effect
- Frequency of the filter for each wah
- 9V battery power or sector (increasingly common in Zvex)

Supplied in cardboard box logo, with red fabric and fantasy.
Manufacturing quality and finishing copy.


The setup is simple but tedious:
We choose 4, 6 or 8 wahs, it sets the frequency of the bandpass filter for each wah, you set the scanning rate, we choose the "seek" (sequence set) or "random" (random sequence) and c ' left.

The negative points are:
- The Zvex pedal format, meaning small. The mini-potentiometers to select the frequency of the bandpass filter for wah each are small and not easy to handle for big fingers.
- A tap tempo would have been welcome, even an outlet for an expression pedal to change the speed. This is what Voodoo Lab on Wahzoo, and it is both interesting and practical the noise level
- = No memory if a setting is satisfactory, it should be noted before changing and impossible to come back soon: we must all re-adjust. A memory bank would not be useless. (It also proposes that the Voodoo Lab).


On this point, of course, no longer critical. The result can be fast or slow and psychedelic (limit tremolo) and hypnotizing. Anything is possible. This pedal is a real machine experiment. The random mode brings even more spectacularly.
Of course, the effect does not always fit easily into your music, but it is one of the most exploitable Zvex effects.


Always difficult to put anything other than 10/10 to a Zvex pedal.
Of course it has faults, particularly regarding the effect setting, tedious and not particularly memorable. Similarly, the ability to associate a tap tempo or even an expression pedal would have been appropriate and would have even helped to extend the sonic possibilities of this pedal.
This pedal is mostly affected by the presence of its competitor, better designed, more versatile and less expensive: the Voodoo Lab Wahzoo.

A severe 9 / 10 in the end, but the basics of this pedal is rare.

Zvex Ooh Wah II images

  • Zvex Ooh Wah II
  • Zvex Ooh Wah II
  • Zvex Ooh Wah II
  • Zvex Ooh Wah II

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Other names: ooh wah ii, oohwahii, oohwah ii, ooh wah 2

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