The Harby Mizu Chorus is an analog chorus pedal from Harby Pedals, described by Pedal of the Day as the company's take on the classic 1979 Boss CE-2 silver screw chorus pedal1. It keeps the CE-2's circuit character while adding two controls the original never had: a Mix knob for blending your dry and modulated signal, and a Volume knob for precise output control1.
The CE-2 circuit behind it
The Boss CE-2 is a well documented piece of chorus history. TONEHOME's Boss reference describes it as succeeding the CE-1, which was released in 1976 and contained exactly the same circuit as the Roland Jazz Chorus JC-120 amp3. Guitar World has called the CE-2 "a stone-cold classic mellow chorus that was reissued in Waza Craft form in combination with the CE-1"4. Anasounds' technical teardown of the CE-2 identifies it as a working analog chorus effect, built around the bucket brigade device (BBD) chips that analog chorus designs use to create their delayed, modulated repeats5.
The Mizu follows that blueprint. Pedal of the Day's reviewer says it "stays true to the iconic circuit of the 1979 original while integrating these enhancements to meet" modern expectations1. Those enhancements include a newer low noise analog BBD chip and clock driver, which the reviewer notes the makers employed to update the original design1.
Controls
Where the 1979 CE-2 offered its own set of knobs, the Mizu adds two controls aimed at making the effect easier to place in a signal chain1:
A Mix control is the notable addition for players used to the original CE-2 layout: it lets you set how much of the modulated signal sits against the dry tone, rather than living with a fixed blend1.
Power
The Mizu runs on 9V DC, center negative, and draws 10mA, according to the RockBoard PedalPedia listing2. That is a modest draw by modern standards, well within what a typical pedalboard power supply output handles.
The pedal's 9V DC center negative requirement means it needs a standard negative-tip supply, not a battery or a positive-tip adapter2.
What reviewers said
Pedal of the Day reviewed the Mizu on 15 March 2025, covering Harby's remake of the CE-2 with its added Volume and Mix controls and the newer low noise analog BBD chip and clock driver1. On the sound, the reviewer says the makers "kept its lush, smooth tones"1. The overall verdict was warm: "I'm loving this new Harby lineup (starting with the Wasabi Overdrive), and can't wait to see what's next."1
Videos
Sasha Ivantic
Pedal of the Day
Eric Merrow
Questions
What circuit is the Harby Mizu based on?
The Mizu is Harby Pedals' take on the classic 1979 Boss CE-2 silver screw chorus pedal. Pedal of the Day's reviewer describes it as staying true to the iconic circuit of the 1979 original while adding enhancements, including a Volume knob for output control, a Mix knob for blending dry and modulated signal, and a newer low noise analog BBD chip and clock driver.
Is the Harby Mizu analog?
Yes. The Mizu is an analog chorus, listed with an analog circuit type, and it uses a newer low noise analog BBD chip and clock driver, the kind of bucket brigade device chip that analog chorus designs rely on to produce their modulated repeats.
What power does the Harby Mizu need?
The Mizu runs on 9V DC, center negative, and draws 10mA. That is a light enough draw for most pedalboard power supplies, though as with any center negative pedal you should use a standard isolated 9V DC output rather than a battery or an incorrectly polarized supply.
Does the Harby Mizu have a Mix knob?
Yes. Alongside the controls carried over from the CE-2 style design, the Mizu adds a Mix knob for blending your dry and modulated signal, plus a Volume knob for precise output control.
Sources (5)
- Harby Pedals Mizu Chorus (CE-2), Pedal of the Day, 2025-03-15
- Mizu by Harby Pedals, RockBoard PedalPedia, 2026
- TONEHOME, TONEHOME
- Boss PX-1 Plugout FX pedal review, Guitar World, 2025-10-24
- LFO | Anasounds, Anasounds, 2021-08-06
