Roland Jazz Chorus-40 User Manual

Main Features
The JC-40 is a 40W stereo-input/output guitar amp featuring a transparently clean tone that faithfully
expresses the true character of your guitar.
5 In addition to a 3-band tone-stack EQ, it also provides a bright switch, giving you a rich palette of
tone settings.
5 Its unique stereo-input design lets you connect a stereo eect unit to the front panel and enjoy a
stereo eect using just a single amp.
5 A beautifully dimensional space chorus eect and a unique vibrato are produced by spatial mixing
(allowing the direct sound and eect sound to mix in the air).
5 With two independent power amps and two custom-designed 10-inch speakers, the JC-40 delivers a
stereo eect and sound that won't get buried in the ensemble.
5 The enclosure is designed for strength and durability, made of hardened berboard and equipped
with corner protectors.
5 If a separately sold footswitch is connected, you can turn chorus/vibrato, reverb, and distortion on/o
with your foot.
JC-40
Owner’s Manual
Dimensional space chorus
This uses two completely independent amps and speakers; one
amp and speaker output the direct sound that is sent from the
guitar, while the other amp and speaker output a sound that is
subtly pitch-modulated. These two sounds are mixed in the air,
creating a softly spacious three-dimensional eect that is warm,
deep, and natural-sounding.
MAIN AMP MAIN AMP
CHORUS

Roland Jazz Chorus-40 Specifications

General

Power Output	40W (20W + 20W)
Stereo Chorus	Yes
Reverb	Yes
Nominal Input Level	-10 dBu
Type	Solid State
Channels	2
Controls	Volume, Treble, Bass, Reverb, Chorus
Outputs	Line Out
Speakers	2 x 10"
Inputs	2 (High, Low)

Summary

Roland JC-40 Main Features

Dimensional Space Chorus Explained

Details the stereo chorus effect created by independent amps and speakers for a spatial sound.

Using the JC-40 Safely

General Safety Warnings and Cautions

Critical warnings to prevent fire, electric shock, and personal injury.

Safe Operation and Handling

Guidelines for grounding, power, ventilation, and volume control.

Environmental and Placement Safety

Precautions for temperature, moisture, stability, and child supervision.

Important Notes and Precautions

Power Supply and Placement Guidance

Advice on electrical connections, noise, and optimal unit positioning.

Maintenance and Handling Tips

Instructions for cleaning, control usage, and cable management.

JC-40 Front Panel Operation

Front Panel Controls and Jacks

Detailed overview of all knobs, switches, and input/output jacks.

Power On/Off Sequence

Step-by-step procedure for safely turning the amplifier on and off.

JC-40 Rear Panel Operation

Rear Panel Connections and Jacks

Explanation of all input and output jacks located on the rear panel.

EU Environmental Compliance

FCC Radio Frequency Interference Statement

California Proposition 65 Warning

Warning about specific chemicals known to cause cancer and reproductive harm.