The SoCal surf-garage rockers prove an instrument, a pedal, and lots of reverb is all you need to have a raging dance party.

Dunham plugs the Ohio into this 1970s Ampeg SR4 Sound Reinforcement Mixer that is actually designed (and originally used by the band) as a PA. Spencer digs the head’s versatility (four inputs/channels), its crystal clean tone, and the fact that it has onboard reverb for days. The head runs through a 1990s Ampeg cabinet that houses a 10” and a 15” speaker.