Report "I am connecting a Sennheiser EK100 G2 wireless receiver into the MIC1 connection on an amplifier to run the audio through a sound system. After doing that and turning the volume up I do get some audio (my voice) but a lot of hiss or static through the speakers. The more I turn up the volume on the master volume knobs, the louder the hiss. What am I missing or doing wrong? thanks"