Boss CH-1 Super Chorus (1989) – Stereo Analog Chorus Pedal

Classic clean swirls with Level, EQ, Rate & Depth controls feeding true stereo outputs.
Dial in everything from subtle thickening to lush, immersive chorusing with this original 1989 Boss CH-1 Super Chorus. Its all-analog circuit delivers warm, natural modulation across both mono and stereo rigs, while rugged metal construction and true-bypass switching make it gig-ready. The intuitive four-knob layout puts Level, EQ, Rate, and Depth at your fingertips, and the red “CHECK” LED shows your status at a glance.
 
Condition:
Good overall state with light paint wear and minor surface marks around the knobs—no dents or structural damage. All pots are smooth, footswitch and LED function perfectly, and the stereo outputs deliver clear, noise-free chorus.
 
Includes:
BOSS CH-1 Super Chorus pedal (dark gray “blue label”)
Original rubber feet
Not included: 9 V power supply, patch cables
 
Features
True-analog chorus circuit for warm, musical modulation
Stereo output (A/mono + B) for wide, immersive effects
Four intuitive knobs: Level, EQ (Lo/Hi), Rate, Depth
Rugged die-cast chassis and true-bypass footswitch
“CHECK” LED indicates power/battery status
 
Customer Reviews
“The curve really pulls you into the mix—sound is lush and the stereo spread is phenomenal.”
— ★★★★★ Marco T.
 
Frequently Asked Questions
Q: Can I run this on a 9 V battery?
A: Yes—uses one 9 V battery (approx. 12–15 hr runtime) or standard Boss PSA adapter.
Q: Will it hum in stereo rigs?
A: No—true-bypass and analog circuitry keep your signal clean without added noise.
Q: What’s the difference between Lo/Hi on EQ?
A: Switches between a darker warmth (Lo) and brighter chorus sheen (Hi).
Q: Is the footswitch durable?
A: Yes—Boss’s die-cast chassis and reliable switch design hold up under heavy gigging.