User Manual

11
FILTER PEAK Knob: Input gain
Controls the input gain of the Mainframe. As this knob is turned
clockwise, the gain increases, producing a hard-clipping distortion.
Factory default is with this knob fully counter-clockwise.
ERASING SECONDARY KNOB SETTINGS
To erase all secondary knob settings and restore them to factory defaults,
first unplug the Mainframe from power. Press and hold the footswitch.
Then, while holding the footswitch, plug power back in to the Mainframe.
The Red LED will blink quickly, indicating that all secondary knob functions
have been restored to the factory default.
TIPS AND TRICKS
 Why adjust the sample rate in a bit crusher?
Using the Mainframe’s sample rate reduction will provide the most
immediate “glitchy old-school computer” sounds, even though it’s not
reducing the signal’s bit depth (“bit-crushing”).
 What are good ways to use the filter?
Sample rate and bit depth reduction create artifacts in the audio signal
that are mostly apparent as high-frequency aliasing noises or
distortion. Using the Mainframe’s switchable Low Pass / Band Pass /
or High Pass filter, these noises can be made more subtle, or
strengthened to emphasize the digital effect.
o LPF – Use this to reduce high frequencies. Older digital systems
used low-pass filters to eliminate unwanted noises, so this can be
used to mimic the lo-fi “gritty” sound of old digital equipment.
o HPF – This reduces low frequencies. This can be used to
emphasize the Mainframe’s digital noises, and can also be used to
mimic the weak bass response of small low-cost digital devices
(like toys, handheld games, etc.).
o BPF – This is the previous two filters combined, providing some
of the benefits of each. This can also be used for a wah-like sound
when using an expression pedal, or a cocked-wah sound without
an expression pedal.
 Where should this go in the signal chain?
Like nearly any pedal, there is no “right” place to put the Mainframe
in a signal chain, so feel free to experiment with different placements.
As a starting point, it can help to treat the Mainframe as a distortion
pedal, and it can “stack” well before or after other distortion, drive, or
fuzz pedals.