Based on the calibration instructions, you probably want it to be red every once in a while:
The Calibration process is as follows:
1.Turn the INPUT knob all the way down.
2.Continuously pluck your instrument at your average plucking velocity.
3.Slowly turn up the INPUT knob up until the center LED starts flashing red. This flashing indicates that you have reached the optimum INPUT level. Leave the knob where it is – the process is complete.
Edit: D'oh. The One Who Knows beat me to it.
The Calibration process is as follows:
1.Turn the INPUT knob all the way down.
2.Continuously pluck your instrument at your average plucking velocity.
3.Slowly turn up the INPUT knob up until the center LED starts flashing red. This flashing indicates that you have reached the optimum INPUT level. Leave the knob where it is – the process is complete.
Edit: D'oh. The One Who Knows beat me to it.
