Source Audio Spectrum Intelligent Filter User Manual page 11

DEPTH (the Primary (Default) Parameter): Adjusts the breadth of the filter modulation.
•
Increasing this knob widens the movement of the filter over the frequency spectrum making
the filter effect more prominent.
MIX (the Alternate Parameter): Adjusts the balance between the natural dry tone of the
•
instrument and affected wet signal. A 50/50 mix of wet dry signal resides at roughly 12
o'clock on the knob.
FREQ/RES Knob
A dual function knob that adjusts the FREQUENCY starting point of the filter modulation as well as
the RESONANCE of the filter.
FREQ (Primary): Adjusts the frequency starting point of the filter modulation. Moving this
•
knob to the left will move the filter over lower frequencies and create a darker sound,
moving the knob to the right places the filter over higher frequencies and create a brighter
sound.
RES (Alternate): Adjusts the resonance (also referred to as "Q") of the filter. Increasing the
•
Resonance knob essentially boosts the height (or "level") of the frequency peaks and
deepens the notches in the frequency cuts.
SPEED/VOL Knob
A dual function knob that adjusts the SPEED of the envelope attack and decay, as well as the overall
VOLUME level.
SPEED (Primary): Adjusts the balance between the natural dry tone of the instrument and
•
affected wet signal. A 50/50 mix of wet dry signal resides at roughly 12 o'clock on the knob.
VOLUME (Alternate) Adjusts the master VOLUME/Output of the pedal. Unity gain usually
•
resides at around the 12 o'clock knob position.
Effect Toggle Switch
Use the Spectrum's three-position toggle switch and two preset banks to easily access six different
presets.
First Preset Bank (Indicated by the green center LED): By default the center toggle switch
•
selects between three presets (TRON, DUMPLING, THRUST) 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 initiates a blinking pattern from the small LED on the pedal's face,
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. Follow the same process to switch back to the green bank.
ALT (Alternate) Button
The small black button located on the topside of the pedal next to the CONTROL INPUT jack. Pressing
the ALT button temporarily puts the pedal into Alternate Control Mode (indicated by the blinking ALT
Function LED). Alternate Control Mode switches from the Primary to Alternate function of each knob.
Moving the center toggle switch while the pedal is in Alternate Control Mode will change the Preset
Bank.
SA248 Spectrum Intelligent Filter User Guide 11