
SA252
Atlas Compressor User Guide
9
THRESHOLD Knob
Adjusts the decibel level at which the signal becomes compressed. Turn counterclockwise for a
lower threshold (earlier compression), or clockwise for a higher threshold (a hotter signal is needed
for compression to occur).
RATIO Knob
Adjusts the overall level of compression. Turn clockwise for a higher (flatter) ratio and ultra-
squashed dynamics. Turn counterclockwise for a lower ratio and more subtle compression
BLEND Knob
Adjusts the wet/dry mix of compression. Unlike MIX controls on other Source Audio pedals, the
BLEND control blends in clean signal as the knob is turned up. Therefore, 100% wet (compressed)
signal is at full counterclockwise on the BLEND knob, and 100% dry is at full clockwise on the knob.
OUTPUT Knob
Adjusts the overall output level (wet/dry mix) of the Atlas.
Preset Selector Toggle
Use the Atlas’s three-position toggle switch and two preset banks to easily access six different
presets.
First Preset Bank (Indicated by the green center LED):
default the center toggle switch
selects between three presets stored in the first bank of presets.
Second Preset Bank (Indicated by
the red center LED):
Pressing the ALT button on the topside of the pedal opens access to the second
bank of presets. After pressing the ALT button, the small LED at the top of the pedal’s face will start
to blink, indicating that the second preset bank is accessible with the toggle switch. Upon moving the
toggle switch the center LED will turn red indicating the current preset is drawn from the second
bank.