Pedals that stack with the Boss Katana-Bass 60 Combo

Fulltone OCD Obsessive Compulsive Drive

Into a high headroom tone, Fulltone OCD Obsessive Compulsive Drive brings the fuzzy it's missing

Carl Martin Hot Drive'n Boost MK3

Carl Martin Hot Drive'n Boost MK3's high gain fills in what this high headroom tone doesn't make on its own

Ashdown Geezer Butler Signature

Into a high headroom tone, Ashdown Geezer Butler Signature brings the low gain it's missing

Outlaw Effects RockerBox

Run Outlaw Effects RockerBox after Boss Katana-Bass 60 Combo in the signal chain, clear of Boss Katana-Bass 60 Combo's own gain stage

Lab Ratz 3D Boum Warming Unit

Lab Ratz 3D Boum Warming Unit's own low gain character is the real reason this is worth trying

Binson Echorec Delay

Put Binson Echorec Delay in Boss Katana-Bass 60 Combo's effects loop, clear of Boss Katana-Bass 60 Combo's own gain stage — goes in the amp's FX loop (or last, into a clean amp)

TC Electronic Alter Ego V2 Vintage Echo

TC Electronic Alter Ego V2 Vintage Echo's pristine voice goes in Boss Katana-Bass 60 Combo's effects loop — it's not there to compete with Boss Katana-Bass 60 Combo's own high headroom character — goes in the amp's FX loop (or last, into a clean amp)