Pedals that stack with the Blackstar #Bass U30

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, Ashdown Geezer Butler Signature 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 → high gain)

Into a transparent tone, Wren and Cuff Box of War Small Foot Fuzz brings a pull toward high gain that's missing

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 is voiced for a clean amp's front end — Blackstar #Bass U30 gives it exactly that

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 MXR ZW90 Wylde Phase after Blackstar #Bass U30 in the signal chain, clear of Blackstar #Bass U30'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.

Vox Valvenergy Silk Drive leans toward smooth, 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.

Run Boss DD-200 Digital Delay in Blackstar #Bass U30's effects loop, clear of Blackstar #Bass U30'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 Blackstar #Bass U30's effects loop, clear of Blackstar #Bass U30's own gain stage — goes in the amp's FX loop (or last, into a clean amp)

Sits in the amp's effects loop