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Control Elements
INPUT GAIN: Please see Getting Started section for a full description of the INPUT GAIN control.
LEVEL: This control adjusts the amount of signal sent to the OUTPUT, D.I. OUT, LINE OUT, and HEADPHONE
jacks.
BASS: This is an "Active" control. The BASS control adjusts the amount of cut or boost in the low frequency
(150HZ) range.
TREBLE: This is an "Active" control. The TREBLE control adjusts the amount of cut or boost in the high
frequency (5kHZ) range.
SHAPE: ON/OFF ‐ This toggle switch enables or disables the SHAPE control. This control is a mid dip control. In
the ON position, the mid frequencies will be cut and the high and low frequencies will be boosted.
PHASE: Changes the polarity of the signal. Phase affects the way the guitar top is pressurized by the
loudspeakers. When the signals are out of phase with each other, low‐end feedback is minimized. If you
experience "positive acoustic" feedback on stage, flip the phase switch from its current setting to kill the
feedback. Phase will also affect the way the signal mixes live and when recording.
GND LIFT: When activated, the GND LIFT disconnects the ground connection between input and output.
Depending on the grounding of the connected equipment, this can eliminate hum or ground loops.
POWER: This LED illuminates when the Ai1 is activated. The Ai1 will become active when a plug is inserted
into the INPUT jack.
INSTRUMENT INPUT: This input is designed for all passive and active type pickup signals. When a plug is
inserted, the 9V battery is switched on.
Be sure to unplug from the GUITAR INPUT when the Ai1 is not in use to conserve the battery life. It is
recommended that you turn down your amp or mixers input before plugging/unplugging from the INPUT jack.
This will protect your speakers from loud pops.
PHONES: Standard 1/8" stereo jack for connection of headphones.
D.I. OUT: Plug a standard XLR cable from your PA or recording console into this low impedance balanced
output. Use the "LEVEL" control to set the output level which matches up best with your PA or recording gear
and gives you the least amount of noise.
OUTPUT: This is a standard unbalanced line level output signal. This output can be used simultaneously with
the D.I. OUT jack for some creative signal routing. Plug a standard instrument cable from this output to a stage
monitor, amp, or unbalanced Mic input on a mixer.
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