3 models · Ernie Ball Music Man
Basses Jia O'Connor is documented playing, drawn from the catalogue's artist data. Each links to full specs and where to buy. This is a gear reference, not an endorsement — attributions come from published sources and may not cover every instrument they use.
Other bassists documented on the same instruments: Aaron Bruch · Adam Russell · Ahren Stringer · Alex Venturella · Ali McMordie · Asa · Ash Kabosu · Bent Sæther (Motorpsycho).