Intermittant Big Noise
I am a new to this forum.
I am using Soundcraft Si Expression Mixer.
There is noise problem during operation. It does not happen always. Sound Level and Noise suddenly jump up and disappeard immediately or several minutes later. I have checked sound level later, but I did not find any problem.
Have anybody experienced this kind of problem? If soeeone experienced before and found the cause of problem, would you let me know?
Thanks in advance.