Hello,
I have a Qu SB and when I power it on the blue light power light does not illuminate, however I can connect to the mixer via iPad. I can change settings, basically access any feature of the mixer but none of the inputs will show signal. After some time, (mins to hours), the blue light will turn on and the mixer will function as normal. A hard reset did not help, and a firmware update turned the power on when I completed it, but I had the same issue the next time I tried to turn the mixer on. Any ideas?
Ian