Pedals that stack with the Systech Harmonic Energizer

Dallas Rangemaster Treble Booster

Run Dallas Rangemaster Treble Booster after it and the warm edge settles into something more bright

JHS Angry Charlie

JHS Angry Charlie leans bright right where the warm tone needs it

MXR WA38

Put MXR WA38 after Systech Harmonic Energizer in the signal chain, clear of Systech Harmonic Energizer's own gain stage

Vox Valvenergy Smooth Impact

Vox Valvenergy Smooth Impact leans toward harmonically rich, and that's a real, usable character to pair with

Way Huge Aqua-Puss Analog Delay

Keep Systech Harmonic Energizer's mid-forward voice out front: Way Huge Aqua-Puss Analog Delay goes after Systech Harmonic Energizer in the signal chain so its analog warmth voice doesn't muddy it — goes in the amp's FX loop (or last, into a clean amp)

Mooer woodverb

Put Mooer woodverb after Systech Harmonic Energizer in the signal chain, clear of Systech Harmonic Energizer's own gain stage — goes in the amp's FX loop (or last, into a clean amp)