Two amps, one sweep moving between them.
Run one amp and the phaser sweeps through your tone. Run two and the BM-13 can spread it across both. Its AUX OUT sends a copy of the effected wet signal for a stereo phasing setup.
Choose 6 stages or 12
The PHASER rocker switch selects 6-stage or 12-stage phasing circuits. SWEEP sets how much of the frequency range the effect uses. RESONANCE adjusts the amplitude and sharpness of the phaser waveform. For the fullest and most extreme phasing, the guide suggests the STUN and KILL settings of AMOUNT.

From slow sweeps to warbling vibrato
RATE takes the effect from slow sweeping sounds to warbling vibratos. The LFO rocker switch picks LO for the lowest speeds or HI for the fastest. Match OUTPUT LEVEL so the loudness stays the same when you press BYPASS.

Patch it like a module
SWEEP, RESO, RATE and AMOUNT each accept an expression pedal or another voltage-based controller. SWEEP IN lets an external LFO module drive the phaser circuit. The internal LFO leaves through LFO OUT, ready for voltage-controlled devices.


