Eventide’s Instant Phaser Mk II recreates the 1972 studio phaser as a plug-in, adding an Age knob for component drift, multiple modes, and flexible modulation controls.
Purpose and Heritage
The Instant Phaser Mk II is a faithful software model of Eventide’s 1972 hardware unit, the first studio rackmount phaser. It was designed to simulate tape flanging, an effect central to many classic recordings. The plug-in captures the original analog character, including the slight imprecision that gave the hardware its musical personality.
A distinctive addition is the Age knob, which simulates how component values drift over years of use, altering the phaser’s tone. This allows you to dial in anything from a fresh, pristine sound to a worn, aged character. The plug-in expands on the original with modern controls while retaining the classic sonic footprint.
Key Capabilities
The plug-in offers three phase-shift modes: Shallow, Deep, and Wide. Wide applies different phase shifting to left and right channels, creating a spacious stereo effect. You can use this to widen mono guitars or synths. A Depth control blends the phased signal with the dry signal for subtle or pronounced effects.
Feedback control intensifies the phasing for a more aggressive sound. Standard input and output gain stages are included for level matching. These controls provide a range of tonal options, from gentle swirls to dramatic sweeps, all rooted in the original hardware’s behavior.
Modulation and Workflow
Four modulation sources control the phasing. Manual mode allows precise automation of the sweep. Oscillator mode sets a constant modulation rate. Envelope mode triggers phase changes when the input signal crosses a threshold, and it accepts a side chain input for triggering from another track. Remote mode maps phasing to a modwheel for live performance.
Sync and Retrig controls offer additional oscillator management, letting you lock the LFO to tempo or restart its cycle. This flexibility makes the plug-in suitable for both studio production and live use, with tactile control options that suit different playing styles.
Practical Applications
Use the Wide mode to transform flat mono guitar tracks into wide, stereo-centered leads. Single-channel synthesizers can also benefit, filling out the sides of a mix. The Envelope follower with side chain enables inter-track interaction, such as phasing a pad in response to a kick drum’s rhythm.
The Age knob is ideal for adding vintage coloration to modern productions, or for matching the sound of aged hardware on reissues. With Manual mode, you can automate sweeping phaser effects for dramatic builds or subtle movement. The plug-in suits rock, pop, electronic, and experimental genres.
Key features
- Age knob simulates component drift over time
- Three modes: Shallow, Deep, and Wide
- Four modulation sources: Manual, Oscillator, Envelope, Remote
- Side chain input for envelope follower triggering
- Sync and Retrig controls for the oscillator
- Feedback control for pronounced phasing
- Depth and input/output gain controls
Best for
Musicians and producers seeking an authentic vintage phaser with modern flexibility. Ideal for widening mono tracks, adding movement to synths, and crafting classic psychedelic or progressive tones. The Age knob and side chain options make it a versatile tool for both mixing and sound design.