User Manual

20
SHIM – Shimmer
This mode creates a shimmer effect, generating a rich octave-shifted wash
of harmony with your guitar. The maximum delay time is 1.5 seconds. The
Grand Canyon achieves the Shimmer effect by modeling a chain of four
EHX pedals:
FILTER: Controls a low pass filter in the feedback path after the
Shimmer effect. As you turn the knob counter-clockwise, the tone of
Shimmer first warms up and then becomes muted.
MOD DEPTH: As you turn clockwise, the Shimmer’s modulation depth
increases yielding a more pronounced effect. The Shimmer effect is
present over the full range of this knob.
SAMPLE/HOLD – Indefinitely repeating delay
This mode senses a note or chord and repeats their echoes indefinitely
until a new note or chord is sensed.
SENSITIVITY: Adjusts the threshold for an intelligent pluck
detection algorithm. As you turn clockwise, new notes are detected
more easily. In the minimum position only loud notes are detected.
The SAMPLE/HOLD LED blinks each time a pluck exceeds the
threshold. Use the LED’s blink to help set the SENSITIVITY knob.
DECAY/SWELL: Adjusts the volume envelope of the echo repeats.
In the noon position, all repeats are at the same volume. As you turn
the knob counter-clockwise from noon, a decay envelope is engaged
where the repeats decrease in volume over time. As you turn the knob
clockwise from noon, a swell envelope is engaged where the repeats
grow in volume over time. The further you turn the knob from noon
the more intense the volume envelopes become.