Pedals that stack with the Gallien-Krueger GK Fusion 2x12 Bass Combo Amp

clean platform takes the driveA clean, high-headroom stage takes on dirt it can't generate by itself. (high headroom → low gain)

The high headroom tone has headroom to spare — Ashdown Geezer Butler Signature leans it toward low gain to fill it in

Goes in front of the amp

clean platform takes the driveA clean, high-headroom stage takes on dirt it can't generate by itself. (high headroom → mid-forward)

The high headroom tone has headroom to spare — Univox Super-Fuzz leans it toward mid-forward to fill it in

Goes in front of the amp

fills a frequency gapFills in a frequency range the other side doesn't cover, instead of piling more onto what's already there. (warm → bright)

Friedman BE-OD's bright balances out the warm tone

Goes in front of the amp

sits in the right chain slotPlaced for where it does its job cleanly in the chain, not for a tonal interaction with the anchor.

Put Maestro PS-1A Phase Shifter after Gallien-Krueger GK Fusion 2x12 Bass Combo Amp in the signal chain, clear of Gallien-Krueger GK Fusion 2x12 Bass Combo Amp's own gain stage

Goes in front of the amp

shapes the dynamic responseShapes how the tone responds to picking dynamics rather than its frequency or gain. (high headroom → compressed)

Boss BC-1X leans toward compressed, and that's a real, usable character to pair with

Goes in front of the amp

sits in the right chain slotPlaced for where it does its job cleanly in the chain, not for a tonal interaction with the anchor.

Keep Strymon El Capistan in Gallien-Krueger GK Fusion 2x12 Bass Combo Amp's effects loop, clear of Gallien-Krueger GK Fusion 2x12 Bass Combo Amp's own gain stage — goes in the amp's FX loop (or last, into a clean amp)

Sits in the amp's effects loop

sits in the right chain slotPlaced for where it does its job cleanly in the chain, not for a tonal interaction with the anchor.

Put Binson Echorec Delay in Gallien-Krueger GK Fusion 2x12 Bass Combo Amp's effects loop, clear of Gallien-Krueger GK Fusion 2x12 Bass Combo Amp's own gain stage — goes in the amp's FX loop (or last, into a clean amp)

Sits in the amp's effects loop