Coppersound Loma Prieta Tap Tempo Harmonic TremoloMaker: Coppersound Model: Loma Prieta Condition: New Description: Loma Prieta is a highly versatile and expressive tremolo pedal, featuring four waveshapes, Tap Tempo, as well as three onboard momentary effects! Though primarily a Harmonic Trem akin to tube driven circuits found in vintage amplifiers, Loma Prieta can be re voiced at the flip of a switch, transforming it into a traditional style tremolo (indicated by a change in color of the Tap LED).