Pedals that stack with the MXR EP3 Echoplex Preamp

Electronic Audio Experiments Surveyor V2.5

Run Electronic Audio Experiments Surveyor V2.5 after it and the bright edge settles into something more warm

Boss OD-1 Overdrive

Run Boss OD-1 Overdrive after it and the bright edge settles into something more smooth

Demeter Compulator

Demeter Compulator leans toward compressed, and that's a real, usable character to pair with

Spaceman Explorer 6-Stage Phaser

Keep MXR EP3 Echoplex Preamp's airy voice out front: Spaceman Explorer 6-Stage Phaser goes after MXR EP3 Echoplex Preamp in the signal chain so its modulated voice doesn't muddy it

Mooer woodverb

Mooer woodverb's warm voice goes after MXR EP3 Echoplex Preamp in the signal chain — it's not there to compete with MXR EP3 Echoplex Preamp's own airy character — goes in the amp's FX loop (or last, into a clean amp)

Boss DD-3 Digital Delay

Run Boss DD-3 Digital Delay after MXR EP3 Echoplex Preamp in the signal chain, clear of MXR EP3 Echoplex Preamp's own gain stage — goes in the amp's FX loop (or last, into a clean amp)