Pedals that stack with the Boss MO-2

Beetronics Nectar

The transparent tone has headroom to spare — Beetronics Nectar gives it low gain to fill it with

Walrus Audio Eons

Walrus Audio Eons's low gain fills in what this transparent tone doesn't make on its own

Neunaber Wet Mono Reverb Pedal

Neunaber Wet Mono Reverb Pedal's pristine voice goes after Boss MO-2 in the signal chain — it's not there to compete with Boss MO-2's own modulated character — goes in the amp's FX loop (or last, into a clean amp)

Meris Polymoon

Keep Boss MO-2's modulated voice out front: Meris Polymoon goes after Boss MO-2 in the signal chain so its modulated voice doesn't muddy it — goes in the amp's FX loop (or last, into a clean amp)