Pedals that stack with the Omega Darkglass AO900 Alpha 900 Bass Head

ProCo RAT 2

The RAT's cutting, low-gain distortion stacks well into the AO900's modern, saturated bass headroom for extra grit on top of the amp's own drive.

Black Arts Toneworks LSTR Fuzz

Both live in heavy, modern metal territory, so the AO900's own saturation stacks naturally with the LSTR's scooped doom fuzz.

Ashdown Geezer Butler Signature

Push the Geezer Butler's doom-voiced preamp drive into the Alpha 900's high headroom and the saturation stays harmonically rich instead of choking out.

MXR Dyna Comp

Ahead of the AO900's modern, saturated bass headroom, the Dyna Comp evens out low-end dynamics before the amp's own drive circuit takes over.

Outlaw Effects RockerBox

The RockerBox's selectable drive modes give the AO900's already-saturated bass headroom another distinct layer of metal-leaning crunch to dial in.

Binson Echorec Delay

Put the Echorec in the AO900's loop, after its own harmonically rich drive and saturation, so the echoes don't smear the attack. — goes in the amp's FX loop (or last, into a clean amp)

Electro-Harmonix XO Deluxe Memory Man

Keep the Memory Man in the AO900's loop for lush, modulated echo beyond the bass head's own modern drive and saturation. — goes in the amp's FX loop (or last, into a clean amp)