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1. POWER: The green LED illuminates when the Ai1 is activated. The Ai1 will become active when a plug
is inserted into the INPUT jack.
2. INPUT GAIN is the first control you should adjust. It is not a volume control. The "INPUT GAIN" sets
the level of amplification applied to the input signal to boost it to a useable level. This adjustment
allows for a wide range of pickup devices. You will want to use the highest "INPUT GAIN" setting you
can without overdriving or distorting the signal. If you are using a high output active pickup system
you will likely want to use a lower setting on the "INPUT GAIN". If you are using a passive type pickup
system you will likely need a higher setting on the "INPUT GAIN". To adjust, slowly turn the "INPUT
GAIN" up (clockwise) while playing your instrument until you begin to hear some distortion, then back
the "INPUT GAIN" down (counter‐clockwise) until the distortion disappears. This will give the Ai1 the
most signal to work with and the best signal to noise ratio. Take note of this optimized setting for
future reference.
3. LEVEL adjusts the amount of signal sent to ALL Outputs (D.I. XLR OUT, Standard OUTPUT, HEADPHONE
jacks and RCA LINE OUT).
4. BASS adjusts the amount of cut or boost in the low frequency (150HZ) range.
5. TREBLE adjusts the amount of cut or boost in the high frequency (5kHZ) range.
6. SHAPE ON/OFF switch enables or disables the "SHAPE" control. In the "ON" position, mid frequencies
will be cut and the high and low frequencies will be boosted.
7. PHASE affects the way the signal mixes live and when recording. If you experience "positive acoustic"
feedback, flip the phase switch to the alternate setting to kill the feedback.
8. GND LIFT If you have multiple grounds, you may have hum or ground loops. Disconnect the DI output
ground by switching "ON" the Ground Lift to eliminate this problem.
Control Elements Panel
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