Specifications

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Classic, Jazz Chorus, MXR “Grey,” and MXR “Phase 90,”
These classes recreate the sound of the “classic” effects. The LFO parameters and sometimes Bandwidth are
controlled to produce the characteristic sound and control action. For example, as LFO Speed is increased,
Width is automatically adjusted within a musical range. The MXR “Phase 90” is a 2-notch Phaser.
Concert and MXR “Phase 100”
These classes create high-end, studio effects. They are the full-blown effects with extended bandwidth and
less linking between LFO Width and Speed. The MXR “Phase 100” is a 5-notch Phaser.
Gated
The Gated class adds dynamics sensing to the effects, which can be used to duck them in and out depending
on the
Effect Enabled setting. The Gated Phaser is a 2-notch Phaser.
“Boston” Effects
The “Boston” classes create “spatial” effects that can process the
difference information in a stereo mix.
Difference information is the part of a mix that does not occur equally in both of the stereo channels, often
such as guitars, backing vocals, and reverb tails. Instruments like lead vocals, bass, and some drums are
often mixed to the center, creating the
common information (common between the left and right channels).
These algorithms process either the difference information or the full mix (consisting of both difference and
common information), depending on the Difference Factor setting (see below). Try Factory Preset numbers
48, 58, 68, 84, and 89 with your favorite CDs and then on your own stereo tracks or mixes. Due to their stereo
nature, these classes are not available in Discrete 4 routing.
Dynamic
The Dynamic effects can trigger the LFO through one cycle of its sweep when the input signal crosses above
the level setting of the
Effect Enabled parameter.
MXR DUCKING JAZZ CHORUS CONCERT GATED “BOSTON” CHORUS DYNAMIC
Delay ±1ms Delay ±1ms Delay ±1ms Delay ±1ms Delay ±1ms Delay ±1ms
Delay ±50ms Delay ±50ms Delay ±50ms Delay ±50ms Delay ±50ms Delay ±50ms
LFO Rate LFO Rate LFO Rate LFO Rate LFO Rate LFO Rate
LFO Width LFO Width LFO Width LFO Width LFO Width LFO Width
LFO Shape LFO Shape LFO Shape LFO Shape LFO Shape LFO Shape
LFO Offset LFO Offset LFO Offset LFO Offset LFO Offset LFO Offset
Effect Enabled Effect Enabled Difference Factor Sweep Start
Attack/Release
MXR DUCKING MXR “GREY” CONCERT GATED “BOSTON” FLANGE DYNAMIC
Delay ±1ms Delay ±1ms Delay ±1ms Delay ±1ms Delay ±1ms Delay ±1ms
Delay ±50ms Delay ±50ms Delay ±50ms Delay ±50ms Delay ±50ms Delay ±50ms
LFO Rate LFO Rate LFO Rate LFO Rate LFO Rate LFO Rate
LFO Width LFO Width LFO Width LFO Width LFO Width LFO Width
Regeneration Regeneration Regeneration Regeneration Regeneration Regeneration
LFO Shape LFO Shape LFO Shape LFO Shape LFO Shape LFO Shape
LFO Offset LFO Offset LFO Offset LFO Offset LFO Offset LFO Offset
Effect Enabled Effect Enabled Difference Factor Sweep Start
Attack/Release