Chapter 3: Description of Features
22 AxSys 212 User Manual
CLIP LED next to the GUITAR knob will light. When the Guitar Input level
is set correctly, the Guitar CLIP LED will light only occasionally.
The best way to set the Guitar Input level to the right setting is to turn up
the GUITAR knob while playing your guitar loudly. Once you have raised
the GUITAR level enough so that the Guitar CLIP LED lights steadily, turn
down the GUITAR knob until the Guitar CLIP LED lights only occasionally.
Aux Input Level
This controls the input level of the Aux Input. Follow the same
instructions in the previous paragraph to set the Aux Input level.
Master Output Level
The MASTER knob controls the final output level of both the Guitar Input
and Aux Input. This control comes after the GAIN control and the VOLUME
pedal, and controls the volume of all Sounds without affecting their tone.
Input Effects
Noise Gate & Hum Canceller
These two effects are designed to reduce noise and hum from noisy guitar
pickups and AC lines.
The Noise Gate provides a gate, which controls whether a signal passes
through or not. When you are not playing, the gate is closed, so no noise is
heard. When you play, the gate opens to let your signal through.
The Hum Canceller is a special kind of gate: when the input signal is
below the Threshold, it cancels out hum1 from the AC line.
Parameter Range Description
Noise Gate
On/Off
On, Off When on, the Noise Gate operates according to the current
settings (see below). When off, the noise gate will allow the
guitar signal to continuously pass through it.
Noise Gate
Threshold
00-99 Sets the Threshold level by which the Noise Gate operates.
When the Guitar input signal exceeds this setting, the Noise
Gate will open and allow its signal to pass through. When
the Guitar input signal falls below the Threshold setting, the
Noise Gate will begin to close at a rate determined by the
NOISE GATE DECAY parameter (see below).
Noise Gate
Decay
00-99 Determines how fast the Noise Gate will close once the
signal level falls below the Noise Gate Threshold.
Hum Canceller Off,
01 to 99
Sets the Threshold level for the Hum Canceller. When the
signal is below the set threshold level, it cancels out
frequencies which are associated with hum.
1The AxSys automatically checks for an AC frequency of 60Hz or 50Hz and adjusts the
Hum Canceller accordingly.