AceTone Electronics CSW-01 California Swirls Analog Chorus

A good modulation pedal can add a slight sonic tinge to your sound, or send your rig and your listeners into outer space and beyond. Today’s pedal, the AceTone Electronics CSW-01 California Swirls Analog Chorus, leans towards the former category, but by no means does that imply simplicity or boredom. With just three knobs, this refreshing beauty has a lot of range, moving easily from light chorus to slightly warbled to big, vintage vibrato tones…

Dive into lush, vintage modulation with California Swirls, an all-analog chorus pedal that captures the warm, swirling textures that defined classic rock, new wave, and grunge tones. Built around a genuine bucket brigade chip for authentic analog warmth, this pedal delivers rich, three-dimensional chorus effects that add depth and movement to your sound without ever sounding synthetic or digital. The California Swirls specializes in that thick, watery modulation character that made chorus an essential effect in the late ’70s and ’80s. Its carefully voiced circuit produces smooth, liquid swells with a slightly dark, organic quality. It is perfect for shimmering clean arpeggios, thickening up rhythm parts, or adding that signature wobble to lead lines.

The chorus effect is unmistakably present without being overpowering, sitting beautifully in a mix while adding satisfying width and dimension. Simple three-knob operation puts intuitive control at your fingertips: Cutback adjusts the speed of modulation from slow, sweeping waves to faster, more animated swirls, while the Surf knob determines the intensity of the effect. The bucket brigade technology ensures the warm, slightly compressed character that digital circuits simply can’t replicate. There’s a gentle, musical quality to the modulation that enhances your tone rather than competing with it, making California Swirls equally at home on clean jazz passages or driving rock riffs.

The California Swirls Analog Chorus is perfect for rock, alternative, new wave, post-punk, shoegaze, and any player seeking classic analog chorus with genuine vintage vibe. Like the rest of the AceTone Electronics pedals I’ve had the pleasure to demo, this one seems simple at first glance, but really packs a punch and gives you wide-ranging sound as you dive in and explore. Be sure to visit the AceTone website for more info and ordering for the California Swirls, and the rest of their impressive effects releases. Don’t forget about our demo, too, and subscribe when you’re over on YouTube – cheers!!