So I have discovered a new issue with the cortado when used with my RME fireface soundcard. The cortado works fine when plugged into my Mackie 12/02 mixer, but when plugged into my RME fireface soundcard it immediately goes into very loud oscillation. I’ve checked the interface with other audio sources and I also compared the phantom power voltages and I note that my mixer gives 45 volts whilst the audio interface gives 49 volts. I assume this higher voltage is causing the problem. If so, is there a way to reduce that voltage within the cortado?…..(adjusting the cortado potentiometer makes no difference to the oscillation).
Thanks Nick.