Headrush Vib / Trem / Rotary
Tremolo
Inspired by Boss® TR-2 Tremolo
Classic volume modulation effect creates cyclic variations in amplitude (not pitch)
GENERAL FUNCTION
Modulate the volume over time
Produces effects:
- vintage amp tremolo
- rhythmic chopping
- ambient pulse
Fundamental for:
- surfing
- blues
- indie
- ambient
Control Parameters
SyncY/N
- ON: synced to BPM
- OFF: free speed (Hz)
Determine how Rate works
RateHz / note value
Tremolo speed:
- slow (0.5–2 Hz): ripple
- medium (3–6 Hz): classic tremolo
- fast (7–12 Hz): nervous effect
In Sync:
- 1/4 → slow
- 1/8 → groove
- 1/16 → fast
Shape%
Wave shape:
- low: sinusoidal (smooth)
- medium: more defined
- high: square (on/off)
Change the “feel” of the tremolo
Depth%
Tremolo intensity:
- 0–20%: light
- 30–60%: musical
- 70–100%: strong chopping
How much the volume fluctuates
Phase Offsetdeg
Stereo phase difference:
- 0°: mono
- 90°: light stereo
- 180°: stereo table tennis
Create stereo motion
Pro Tips
- High depth → almost “on/off” signal
- High shape → hard effect
- Fast installments → can get tiring
- Phase high → less mono compatible
For musical sound:
- Low shape
- Medium Depth
For rhythmic effects:
- Sync ON
- Shape tall
Quick Reference
- Sync: sync BPM
- Rate: speed
- Shape: shape
- Depth: intensity
- Phase Offset: stereo
Setup Examples
Vintage tremolo (Fender style)
Rates4–6 Hz
Depth40–60%
Shapelow
Phase0°
Classic sound
Rhythmic tremolo (sync)
SyncON
Installments1/8
Depth50–70%
Shapemedium
Grooves
Ambient tremolo
Rateslow
Depth30–50%
Shapesmooth
Phase180°
Spatial movement
Hard chop (EDM)
Installmentsfast
Depth100%
Shapetall
Gate effect