B-AMP Bergantino Owner's Manual - page 19
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Screen 8- Main Phase Menu
This menu allows you to reverse the phase of the main amplifier’s output (including pre-out, if
selected as the line out) to help eliminate any possible feedback or phasing issues
experienced in a live or recording environment. It does not affect the phase of the DI out.
• Turning the Bass/Filters knob
Normal ó Reverse
Screen 9 – Tuner Frequency, Instrument Select and Enable Menu
This menu allows you to choose the A4 reference frequency for instrument tunings. Ranges
from A432 – A448 can be selected using the BASS/Filters knob.
It also allows you to optimize the tuner’s speed and accuracy for either Bass or Guitar by
turning the LMID/Mem1 knob to the desired instrument. And, you can enable or disable the
tuner function in this menu by turning the TRBL/Bright knob to the desired selection. If
enabled, when Mute is engaged, the LCD display will turn into a very fast and accurate
chromatic tuner optimized for the instrument selected.
The factory default is A=440.