Carl Martin has a thing about tremolo. In our recent review of the companys Quattro multi-FX, tremolo is included above the more obvious chorus as the only modulation effect. Here, too, this Surf Tremolo (inspired by the Carl Martin Tremovibe) is included in the fi rst wave of this series when an oldstyle, sweet-sounding chorus may have been preferable. Many modern tremolo pedals go for hard machine-gun, almost gated effects, which can sound spectacular when in time with a songs tempo. This old-style tremolo, however, goes for a much softer wob-wob-wob that is often used to best effect across the beat rather than strictly in time. Depth and speed are the only controls.