Recorded model
MXR Phase 100
Controls
Speed / Intensity / Waveform / Feedback
Documented settings
Fourth in chain / Exact speed not documented
Effect profile / Modulation
MXR Phase 100
Also documented as MXR Phaser
This modulation entry consolidates documented MXR Phase 100 variants, controls, settings and roles across dated guitarist pedalboards.
- Pedalboards
- 3
- Artists
- 3
- Archived variants
- 3
Documented roles
- Adds multi-stage phase movement after distortion in Garcia's 1978 loop.
- Provides multi-intensity phasing.
- Creates the damped, sweeping texture Richards used on Beast of Burden and one or two other 1981 tour numbers.
Controls found in the archive
FeedbackIntensityIntensity selectorSpeedWaveform
Source-specific records
Documented variants
3 archive entries
Recorded model
MXR Phase 100
Controls
Speed / Intensity
Documented settings
Control positions not published / Placement follows the evidence note
Recorded model
MXR Phase 100
Controls
Speed / Intensity selector
Documented settings
Used selectively / Beast of Burden
Archive references
Pedalboards using this pedal
3 documented rigs
01
Guitarist
Jerry Garcia
Pedalboard
Wolf onboard-loop effects chain
Date
Documented setup
MXR Phase 100
Fourth in chain · Exact speed not documentedChain position4
View board02
Guitarist
Keith Richards
Pedalboard
North American tour effects
Date
Documented setup
MXR Phase 100
Used selectively · Beast of BurdenChain position1
View board03
Guitarist
Marcus King
Pedalboard
2026 touring board
Date
Documented setup
MXR Phase 100
Control positions not published · Placement follows the evidence noteChain position7
View board