Pedals that stack with the Tech 21 Killer Wail v2 Wah

Klon Centaur

Killer Wail's adjustable wah sweep doesn't stack gain with the Klon — it filters the Centaur's own midrange breakup as it sweeps.

Dallas Rangemaster Treble Booster

Run the Rangemaster's germanium treble kick before the Killer Wail so the sweep has real edge to work with.

Electro-Harmonix XO Deluxe Memory Man

Feed the Memory Man's lush analog echo with the Killer Wail's reliable, adjustable wah sweep and the repeats carry that expressive filter forward. — goes in the amp's FX loop (or last, into a clean amp)

Roland SDE-3000D

Keep the SDE-3000D after the Killer Wail — the analog wah sweep stays intact and the delay's iconic digital repeats trail behind it. — goes in the amp's FX loop (or last, into a clean amp)