Ring Modulator Analog (mono jack, true bypass, 9v battery).

This adds a small bte acute low note and the note being played, as will a harmonizer, but not directly related to the note played.
These "harmonics" are calculated based on a note of rference, virtual, inaudible, fixed and adjustable.
The PDAL has the particularity to have these 8 DIFFERENT SETTING THE "harmonic", and a switch to switch to the next rglage (to monitor the grid we play, for example) .

Zvex sell (too expensive I think) a system that connected to his pedals on the sector.

Configuration:

SETTING THE -8 knobs of the pitch
-1 Switch to switch between "random" (random image) mode "no no" (switch)
-1 Knob speed (mode "random")
-1 Switch on / off
-1 Switch to switch to the next rglage (mode "no no")
-1 Small knob screws to assay the effect (mix dry / wet) is accessible by opening the pedals (screwdriver required, as to change the battery).

UTILIZATION

The config is simple.

Little difficulty
The PDAL has the advantage of not being cumbersome, but the disadvantage of being small!
The knobs are so small and tight, the trs rglage prcis the accuracy of eight modulators requires much patience ...
And they at least drglent frlement.
Sometimes we balance out by the window ...

But your exact worth:
With time and patience, you can learn things unknown date.

Mode "random" moves from one modulator in a random image order, speed adjustable by a knob.
This gives a nice effect rhythm trs.

But it is in "no no" there as much as invented abroad.

SOUND QUALITY

The sound of the guitar is totally prserv and the sound of "harmonics" add is the typical sound weird and a little of ring modulators.

I use it with guitars, and that is your exact j'esprai.
On occasion, I will try with a synth.

OVERALL OPINION

I dj Frequency Analysis of the Electro-Harmonix, which has only one rglage.
The Zvex ringtone is the same, multiplied by 8.

Appraisal:
Trs difficult to use, so trs interresting! ")