CH-1SUPER Chorus

CH-1
Where to Buy

Super Sound, Super Simple

The CH-1 delivers the genuine tone of the classic BOSS chorus effect—clear, shimmering, and instantly musical. Designed for players who value simplicity, the pedal’s intuitive controls make it easy to dial in everything from subtle motion to intense modulation. Its stereo output separates wet and dry signals, enabling spacious, dimensional stereo effects that set it apart from standard chorus pedals.

Features

  • Classic BOSS chorus tones for every musical style
  • Controls for rate, depth, and chorus level
  • EQ knob to shape the chorus tone
  • Mono and stereo outputs
  • Stereo output generates wide, spacious chorus sounds with two amps and stereo setups
  • BOSS five-year warranty
CH-1

Ideal Tone Every Time

The CH-1 is filled with clear, transparent chorus tones that shine with any musical style. From adding delicate shimmer to arpeggios to enhancing high-gain solos with depth and dimension, this pedal puts it all at your fingertips. The ultra-simple interface is designed for consistency and ease, ensuring that your ideal sound is just a knob twist away.

CH-1

Intuitive Control

The CH-1 provides modulation speed and depth controls, plus a level control for mixing the chorus effect with the dry signal. The EQ knob functions as a low-pass filter for the effect sound, offering an array of tonal colors with one simple control. Lower settings induce richness and warmth, while higher settings introduce more sparkle and brightness to the tone.

CH-1

Deep Stereo Dimension

The Roland JC-120 Jazz Chorus amplifier is renowned for its lush, room-filling sound, produced with a stereo circuit and the unique Dimensional Space Chorus effect. The CH-1 features a stereo output inspired by this iconic amp that provides discrete wet and dry signals. When sent to two amps, these independent voices magically merge in the sound field, authentically recreating the wide, immersive experience of the JC-120.

Nominal Input Level
-20 dBu
Input Impedance
1 M ohm
Nominal Output Level
-20 dBu
Output Impedance
1 k ohm
Recommended Load Impedance
10 k ohms or greater
Bypass
Buffered bypass
Controls
DEPTH knob
RATE knob
EQ knob
E.LEVEL knob
Pedal switch
Indicator
CHECK indicator (Used for indication of check battery)
Connectors
INPUT jack: 1/4-inch phone type
OUTPUT A/B jack: 1/4-inch phone type
DC IN jack
Power Supply
Alkaline battery (9 V, 6LR61)
AC adaptor (PSA series: sold separately)
Current Draw
55 mA
Expected battery life under continuous use
Alkaline: Approx. 6 hours
*These figures will vary depending on the actual conditions of use.
Accessories
Leaflet ("USING THE UNIT SAFELY," "IMPORTANT NOTES," and "Information")
Alkaline battery (9 V, 6LR61)
Options (sold separately)
AC adaptor: PSA series
Size and Weight
Width
73 mm
2-7/8 inches
Depth
129 mm
5-1/8 inches
Height
59 mm
2-3/8 inches
Weight (including battery)
420 g
15 oz
* 0 dBu = 0.775 Vrms
* The specifications are subject to change without notice.

Audio Library

Behind the Board: Dave Lee with John Frusciante of the Red Hot Chili Peppers

Behind the Board: Dave Lee with John Frusciante of the Red Hot Chili Peppers

Top-tier guitar tech Dave Lee shares behind-the-scenes insights from his time working with John Frusciante of the Red Hot Chili Peppers.Read more…

Behind the Board: Dan Cleary with Dave Navarro of Jane’s Addiction

Behind the Board: Dan Cleary with Dave Navarro of Jane’s Addiction

Dave Navarro and Eric Avery’s trusted tech reveals the secrets to the signature sounds of alt-rock icons Jane’s Addiction.Read more…

Reverberations: Ed O’Brien of Radiohead

Reverberations: Ed O’Brien of Radiohead

The echo aficionado reveals his favorite stompboxes and explains why “BOSS has been at the forefront of all this incredible music.”Read more…

The Complete Guide to Acoustic Guitar Effects Pedals and Signal Chain

The Complete Guide to Acoustic Guitar Effects Pedals and Signal Chain

Explore the essential acoustic guitar effects, learn how to use them, and discover the best order for your unique signal chain.Read more…

Popular Delay Pedal Artists and Their Iconic Sounds

Popular Delay Pedal Artists and Their Iconic Sounds

Examine some of the most popular delay artists and their iconic sounds. Then, explore their pedals and how to capture their iconic tones.Read more…

Pedal Partners: Combining Chorus with Other Effects

Pedal Partners: Combining Chorus with Other Effects

Chorus adds an extra dimension when paired with other pedals. Here are some dynamic suggestions for combining it with different effects.Read more…

Support

If you have questions about operating your BOSS product, please check our Knowledge Base for answers to the most common questions.
In addition, we have a library of Owner’s Manuals and Support Documents that you can download and reference.
If you require further assistance, all Product Support questions are handled via BACKSTAGE which can be accessed via eu.boss.info

Owner's Manuals

Support Documents