Mono/Stereo Table for the M-Series. Special Thanks to JimRyanLine6 who originally reserached and created this list.
True Stereo - Left input goes to the Left output, Right goes to the Right output, effect is added to each channel separately.
Mono - Left input and Right input are summed to mono, effect is added to the mono signal which goes to both the Left and Right outputs.
Stereo Thru/Mono Effect - Left input goes to the Left output, Right input goes to the Right output, Left input and Right input are summed to mono, effect is added to the mono signal which goes to both the Left and Right outputs.
Stereo Thru/Stereo Effect - Left input goes to the Left output, Right input goes to the Right output, Left input is processed to create a stereo effect and mixed with the Left and Right outputs, Right input is processed to create a stereo effect and mixed with the Left and Right outputs.
The difference between the last two is a mono effect will sound like it is in the center of the stereo field, a stereo effect will lay across the stereo field.
| Delay | Tube Echo | True Stereo |
| Delay | Tube Echo DryThru | True Stereo |
| Delay | Tape Echo | True Stereo |
| Delay | Tape Echo DryThru | True Stereo |
| Delay | Multi-Head | Stereo Thru/Mono Effect |
| Delay | Analog Echo | True Stereo |
| Delay | Analog w/Mod | True Stereo |
| Delay | Sweep Echo | True Stereo |
| Delay | Sweep Echo DryThru | True Stereo |
| Delay | Lo Res Delay | True Stereo |
| Delay | Digital Delay | True Stereo |
| Delay | Digital Delay w/ Mod | True Stereo |
| Delay | Stereo Delay Left | True Stereo |
| Delay | Ping Pong | Stereo Thru/Stereo Effect |
| Delay | Reverse | Stereo Thru/Mono Effect |
| Delay | Dynamic Delay | True Stereo |
| Delay | Auto Volume Echo | True Stereo |
| Delay | Echo Platter | True Stereo |
| Delay | Echo Platter DryThru | True Stereo |
| Modulation | Opto Tremolo | Stereo Thru/Mono Effect |
| Modulation | Bias Tremolo | Stereo Thru/Stereo Effect |
| Modulation | Pattern Tremolo | True Stereo |
| Modulation | Phaser | Stereo Thru/Stereo Effect |
| Modulation | Dual Phaser | Stereo Thru/Stereo Effect |
| Modulation | Panned Phaser | Stereo Thru/Stereo Effect |
| Modulation | Barberpole Phaser | True Stereo |
| Modulation | Script Phase | True Stereo |
| Modulation | U-Vibe | Stereo Thru/Mono Effect |
| Modulation | Analog Flanger | Stereo Thru/Stereo Effect |
| Modulation | Jet Flanger | Stereo Thru/Stereo Effect |
| Modulation | AC Flanger | Stereo Thru/Stereo Effect |
| Modulation | 80A Flanger | Mono |
| Modulation | Analog Chorus | Stereo Thru/Stereo Effect |
| Modulation | Tri Chorus | Stereo Thru/Stereo Effect |
| Modulation | Pitch Vibrato | Stereo Thru/Mono Effect |
| Modulation | Panner | Stereo Thru/Stereo Effect |
| Modulation | Rotary Drum | Stereo Thru/Stereo Effect |
| Modulation | Rotary Drm/Hrn | Stereo Thru/Stereo Effect |
| Modulation | Dimension | Stereo Thru/Stereo Effect |
| Modulation | Ring Modulator | Stereo Thru/Stereo Effect |
| Modulation | Frequency Shifter | True Stereo |
| Distortion | Tube Drive | Mono |
| Distortion | Screamer | Mono |
| Distortion | Overdrive | Mono |
| Distortion | Classic Dist | Mono |
| Distortion | Heavy Dist | Mono |
| Distortion | Colordrive | Mono |
| Distortion | Buzz Saw | Mono |
| Distortion | Facial Fuzz | Mono |
| Distortion | Jumbo Fuzz | Mono |
| Distortion | Fuzz Pi | Mono |
| Distortion | Jet Fuzz | Mono |
| Distortion | Line 6 Drive | Mono |
| Distortion | Line 6 Distortion | Mono |
| Distortion | Sub Octave Fuzz | Mono |
| Distortion | Bass Octaver | Stereo Thru/Mono Effect |
| Distortion | Octave Fuzz | Mono |
| Distortion | Boost Comp | Mono |
| Distortion | Volume Pedal | True Stereo |
| Distortion | Red Comp | Mono |
| Distortion | Blue Comp | Mono |
| Distortion | Blue Comp Treb | Mono |
| Distortion | Vetta Comp | Mono |
| Distortion | Vetta Juice | Mono |
| Distortion | Tube Comp | Mono |
| Distortion | Noise Gate | Mono |
| Distortion | Graphic EQ | True Stereo |
| Distortion | Studio EQ | True Stereo |
| Distortion | Parametric EQ | True Stereo |
| Distortion | 4 Band Shift EQ | True Stereo |
| Distortion | Mid Focus EQ | True Stereo |
| Filter | Tron Down | True Stereo |
| Filter | Tron Up | True Stereo |
| Filter | Seeker | True Stereo |
| Filter | Obi-Wah | True Stereo |
| Filter | Voice Box | Stereo Thru/Mono Effect |
| Filter | V Tron | Stereo Thru/Mono Effect |
| Filter | Throbber | True Stereo |
| Filter | Spin Cycle | True Stereo |
| Filter | Comet Trails | True Stereo |
| Filter | Slow Filter | True Stereo |
| Filter | Octisynth | Stereo Thru/Mono Effect |
| Filter | Synth O Matic | Stereo Thru/Mono Effect |
| Filter | Attack Synth | Stereo Thru/Mono Effect |
| Filter | Synth String | Stereo Thru/Mono Effect |
| Filter | Growler | Stereo Thru/Mono Effect |
| Filter | Q Filter | True Stereo |
| Filter | Vetta Wah | True Stereo |
| Filter | Fassel | True Stereo |
| Filter | Weeper | True Stereo |
| Filter | Chrome | True Stereo |
| Filter | Chrome Custom | True Stereo |
| Filter | Throaty | True Stereo |
| Filter | Conductor | True Stereo |
| Filter | Colorful | True Stereo |
| Filter | Smart Harmony | Stereo Thru/Mono Effect |
| Filter | Pitch Glide | Stereo Thru/Mono Effect |
| Reverb | ‘63 Spring | Stereo Thru/Stereo Effect |
| Reverb | Spring | Stereo Thru/Stereo Effect |
| Reverb | Plate | Stereo Thru/Stereo Effect |
| Reverb | Room | Stereo Thru/Stereo Effect |
| Reverb | Chamber | Stereo Thru/Stereo Effect |
| Reverb | Hall | Stereo Thru/Stereo Effect |
| Reverb | Ducking | Stereo Thru/Stereo Effect |
| Reverb | Octo | Stereo Thru/Stereo Effect |
| Reverb | Cave | Stereo Thru/Stereo Effect |
| Reverb | Tile | Stereo Thru/Stereo Effect |
| Reverb | Echo | Stereo Thru/Stereo Effect |
| Reverb | Particle | Stereo Thru/Stereo Effect |