Pedals that stack with the Gallien-Krueger Fusion 500 S

Warm Audios Throne of Tone

Gallien-Krueger Fusion 500 S's own voicing points at a clean amp's front end, and Warm Audios Throne of Tone delivers it

ProCo RAT 2

A RAT 2 out front gives the Fusion 500's organic, harmonic-rich preamp the low-gain grind it doesn't produce on its own.

Ashdown Geezer Butler Signature

The Fusion 500's organic, hybrid tube preamp gives the Geezer Butler's doom-voiced distortion a warmer amp voice to push into.

Beetronics Swarm

On a bright hybrid-tube stage rig like the Fusion 500, the Swarm's fuzz harmonics stay clear instead of turning to mush.

MXR Phase 90

Add the Phase 90's organic sweep on top of the Fusion 500's own hybrid tube-preamp warmth for classic-rock movement.

Wampler Mini Ego 76 Compressor

Run the Mini Ego 76 before the Fusion 500 for studio-grade FET compression before the amp's own hybrid preamp reacts.

Dunlop MXR M299 Carbon Copy Mini

Run the Carbon Copy Mini in the Fusion 500's loop — dark analog slapback on top of its hybrid tube-preamp warmth. — goes in the amp's FX loop (or last, into a clean amp)

Source Audio AfterShock

Gallien-Krueger Fusion 500 S's own harmonically rich character is the real reason this is worth trying

Walrus Audio EB-10B

Gallien-Krueger Fusion 500 S leans toward harmonically rich, and that's a real, usable character to pair with

Meris Polymoon

Run the Polymoon in the Fusion 500's loop for complex, modulated delay beyond the amp's own hybrid tube-preamp warmth. — goes in the amp's FX loop (or last, into a clean amp)