From basic Boss to sonic psychosis, we bring you another installment of cool pedalboards from PG readers.

Bassist David Beers uses more effects than most guitarists—he has two ring modulators! David’s effects include an Electro-Harmonix Micro Synthesizer, Moogerfooger FreqBox and Ring Modulator pedals, a Roland EV-5 volume pedal, an ancient Electro-Harmonix Frequency Analyzer ring modulator, a Guyatone TZ2 fuzz, a Maxon AF-9 auto-filter, a Dunlop Uni-Vibe, a DigiTech XP-100 Whammy-Wah, a Boss DD-20 Giga Delay, an Electro-Harmonix Holy Grail reverb, a Brimstone Crossover Distortion, a Flip Tremolo, and a vintage Roland RE-201 Space Echo.