Musitronics Mu-Tron Bi-Phase

Mutron Biphase for sale.

Supplied with our custom double switch (incorrect one shown in photo due to pre-Christmas rush). The custom footswitch has an expression pedal socket so you can access the phaser sweep capability that normally requires the rare C-100 Opti-pot (knob on the side allows you to adjust the sweep range).

This one also came to us with the original double switch modified with a master switch to turn off both phasers at once. This works, however it leads to some confusion if the other switches are also used – you will need to experiment if you want to use this!

We have to go deep on these to do our best to keep them running including fitting new socketed ribbon cables (future reliability/ease of servicing). Recapped and with an IEC power socket added. Like many older pieces, they now require a great deal of work to remain reliable for the next decade or two.

We love a Bi-Phase (it’s in our top three phasers for sure) and we’re not alone: not only are they a staple effect of many dub reggae producers (Lee Perry most notably), but they’re widely-used with guitars/synths/keys etc in a wide variety of genres. A truly legendary effect, essentially it is two of Mike Beigel’s optical phaser circuits (aka the Phasor II) in one housing, with ability to route the output of one through the other, and link, or not, the sweep rates. Note that you can also use each phaser separately.