Quote:

I have tried using the sound card in the laptop and sent the phones out to the mixer ad the bass distortion disappeared ...




If all other equipment was the same in this test, then it does point to something in the SD20 unit.
If only the bass is causing the distortion, can you try another bass patch?
As mentioned, make sure there are no FX inside the SD20 affecting the bass.

Does it improve if the overall volume of the SD20 is turned down (are you overloading the mixer or something?)


I do not work here, but the benefits are still awesome
Make your sound your own!