These videos were taken with an oscilloscope, real time and have not been manipulated. You can extract your own conclusions.


We tested an X-DREi PRO switching between BYPASS y  DREi ON

Neutral Audio Video Testing Waves with DREi ON/OFF

Pink Noise

Silent Track


(saturation distorsion)

Modulation & Overdrive

You can see the square waves are modified without affecting the sine.

Triangle & Square waves

You can watch as triangular and square waves are reinterpreted to be more like sine waves and avoid problems with sound reproduction.

Nearby frequencies

All videos together.

Digital Noise

Bigger definition of lines.


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Neutral Audio