Pedals that stack with the Harmony H650

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

Into a transparent tone, Origin Effects DCX Boost brings a pull toward low gain that's missing

Goes in front of the amp

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

The transparent tone has headroom to spare — Fulltone OCD Obsessive Compulsive Drive leans it toward fuzzy 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.

Keep TC Electronic Stereo Chorus Flanger after Harmony H650 in the signal chain, clear of Harmony H650'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.

Harmony H650 leans toward warm, 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 Walrus Audio Slö Multi-Texture Reverb in Harmony H650's effects loop, clear of Harmony H650'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 Boss RV-6 Reverb in Harmony H650's effects loop, clear of Harmony H650's own gain stage — goes in the amp's FX loop (or last, into a clean amp)

Sits in the amp's effects loop