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Input Trim and VU Meter
Adjust this set-and-forget control to accommodate the dynamics of your
playing style. When you set Input Trim to the optimum level, you can play
strongly without distortion and play quietly without hiss.
To Set the Input Trim:
• Unplug the guitar and pull the small tab at the top of the Onboard
Aura toward you. Locate the small circular potentiometer on the
right side of the preamp.
• To turn on the VU meter, move the Edit/Play switch to Play and plug in
the guitar while holding the Measure button for two seconds. Release
the Measure button when a “U” is shown in the tuner display. The
pitch LEDs (two arrows and a circle) will now display the input level.
• Play the instrument strongly and watch the LED display. Use a small
fl at-head screwdriver to raise or lower the trim control so all three LEDs
fl ash occasionally with hard strumming.
• To exit the VU meter, push the Tuner button.