Pedals that stack with the Yamaha THR30IIA Wireless 30W 2x3.5 Modeling Acoustic Combo

Electro-Harmonix Crayon

What Electro-Harmonix Crayon brings here leans toward transparent — that's worth building a pairing around

JAM Pedals Tubedreamer

What JAM Pedals Tubedreamer brings here leans toward compressed — that's worth building a pairing around

Mad Professor Sweet Honey Overdrive

Mad Professor Sweet Honey Overdrive's own transparent character is the real reason this is worth trying

Walrus Audio Julia

Put Walrus Audio Julia after Yamaha THR30IIA Wireless 30W 2x3.5 Modeling Acoustic Combo in the signal chain, clear of Yamaha THR30IIA Wireless 30W 2x3.5 Modeling Acoustic Combo's own gain stage

Echoplex EP-3

Keep Yamaha THR30IIA Wireless 30W 2x3.5 Modeling Acoustic Combo's pristine voice out front: Echoplex EP-3 goes in Yamaha THR30IIA Wireless 30W 2x3.5 Modeling Acoustic Combo's effects loop so its analog warmth voice doesn't muddy it — goes in the amp's FX loop (or last, into a clean amp)

Electro-Harmonix Holy Grail Max

Keep Yamaha THR30IIA Wireless 30W 2x3.5 Modeling Acoustic Combo's pristine voice out front: Electro-Harmonix Holy Grail Max goes in Yamaha THR30IIA Wireless 30W 2x3.5 Modeling Acoustic Combo's effects loop so its spring voice doesn't muddy it — goes in the amp's FX loop (or last, into a clean amp)

Keeley Compressor Plus

What Keeley Compressor Plus brings here leans toward compressed — that's worth building a pairing around