Arturia Phaser BI-TRON Effect Software

Set your sound to stun. Based on the vintage Mu-Tron Bi-Phase, this spacey, sweeping, swooshy stereo dual phaser plug-in delivers hypnotic ear-candy effects.

An all-encompassing phaser that oozes retro sci-fi charm. Modeled on one of the most coveted guitar pedals in history, Phaser BI-TRON features 2 sweep generators, dual 12-stage phaser circuits, mind-bending routing options and a sound that's set to stun.

More than just a phase
A simple concept, multiplied, expanded, and pushed to the outer limits.
A definitive sound that was ahead of its time, yet remains hypnotic and otherworldly to this day. Phaser BI-TRON encapsulates the transcendent quality of an undisputed trailblazer of the modulation world. Soft 2-pole flutters, wild asynchronous movement, resonant swirls suspended in orbit - there's nothing quite like it.

Rebuilding a legend
The humble phaser was one of the first widely-available guitar effects on the market.

Achieved by the relatively simple means of modulating all-pass filters on an input signal, it's a sound that's as recognizable as it is divisive. No modulation collection is complete without a phaser - and as the world's first dual phaser, the Mu-Tron Bi-Phase stood out from the crowd. Popularized by everyone from Smashing Pumpkins to Prince, Kraftwerk to Chromeo, it's evident that the pull of stereo functionality, interweaving modulation, and analog charm was impossible to resist.

Arturia set about studying, remaking, and enhancing this prized handmade effect. Using their proprietary TAE technology (True Analog Emulation), they wanted to replicate every subtle detail, every sonic trait - even the control panel read more and expression pedal functionality. Phaser BI-TRON is every bit an analog dream, primed for your virtual studio.


- All-encompassing dual phaser with glorious stereo sound and enhanced controls
- Circuit-accurate sound emulation for rich analog response
- 2 sweep generators (LFOs), each with 3 waveforms to choose from
- 2 independent 12-pole 'Phasor' circuits with depth, feedback and mod source controls
- Dual depth controls on each 'Phasor' circuit, corresponding to both sweep generators
- Arturia's advanced features enhancing the original unit:
- Advanced routing for mono, stereo, series or parallel operation
- 12dB/oct Hi-pass filter on input signal
- 'Phasor' poles increased from 6 to 12
- Expression pedal/envelope feature can control LFO rates, 'Phasor' circuits
- Stereo reverse option on each 'Phasor' module
- Sweep generators can be tempo sync'd
- Individual 'Phasor' circuit bypass and dry/wet controls
- A selection of 37 curated presets for instant iconic modulation sounds
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Base Item
Manufacturer Part Number (MPN): 1090-82

For support or warranty questions, please contact the manufacturer:

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