I fired up my new 340A and 340C last night, and there was no sound! The manual said "make sure unit is not in standby mode", but gave no indication of how to tell the difference between "standby" and "on", or how to switch between them ("off" is easy to recognize, as the leds shut off.) They said that if it had been in "mute" mode, an led would have been blinking.
Finally, I unplugged it, plugged back in and now it works fine. This is a real problem, because it shakes my confidence in the amp and makes me worry that it might have a defect.

Does this seem likely, or did I just have an odd setting engaged?
