I just got my brand new EHX Cathedral Reverb Effect and plugged it in with the delivered power supply. Then I started moving all the different knobs for sound changes and of course the mode knob to switch to the different modes. But the only mode which is working is the Flerb-Mode. Any other mode has no effect. When I turn the blend knob to the maximum (wet sound) no sound is listenable in all other 7 modes except the Flerb.

Any suggestions for this issue?

Greetings from Germany

slope