The Instant Phaser Mk II Vintage Tape Phasing Plug-In Software from Eventide faithfully recreates the tape machine flanging effect popularized by the original Clock Works Instant Phaser rackmount device, the world’s first studio phaser, introduced in 1972 and popularized by artists including Todd Rundgren, Rush, Tomita, and Led Zeppelin.

Instead of simulating the bucket-brigade time-delay circuits common to flangers, the phaser’s software algorithm offers a convincing emulation of the original hardware’s series of eight analog all-pass filters, with three distinct modes ranging from Shallow to Wide—each with unique tonal characteristics. The Instant Phaser mkII is capable of a wide range of effects; add stereo depth to mono instruments, dial in heavy-duty phasing on toms, percussion, and synths, or use more subtle settings to make individual tracks stand out in a busy mix.