13
Anti-Feedback
Use this search-and-destroy Anti-Feedback fi lter in addition to the Phase switch.
1. Push Anti-Feedback button once. The letter “F” in tuner display will fl ash.
2. Turn up Volume, then either dampen the strings while tapping the body or
play the troublesome note until the feedback begins. The automatic fi lter will
identify and eliminate the feedback. The circuit will hold this offending frequency
in memory until you push the Measure button again.
To turn the circuit off, push and hold the Anti-Feedback button for fi ve seconds.
Battery Replacement
Pull the small tab at the top of the Aura Pro toward you. The body of the
preamp will swing out, revealing the battery compartment. Observe the polarity
marks on the battery compartment and install a fresh 9V battery. See page 15.
We recommend a lithium battery for extended battery life.
Summary of Contents for AURA PRO RETAIL
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