Roland JC-40 Owner's Manual

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Year 2015

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Roland JC-40 Specification

The Roland JC-40 Jazz Chorus Amplifier is a versatile and compact guitar amp designed for musicians seeking the classic clean tones and rich chorus effects. With a power output of 40 watts, it features a true stereo output with dual 10-inch speakers, delivering a wide and immersive sound experience. The JC-40 maintains Roland's renowned JC clean tone, offering a clear and transparent sound ideal for jazz and other clean-tone applications.

Built with high-quality analog technology, the JC-40 includes a stereo chorus effect that enhances depth and dimension, providing a lush and spacious sound. Additionally, the amplifier is equipped with reverb, distortion, and vibrato effects, allowing for a diverse range of tonal possibilities. The front panel includes a three-band EQ, enabling precise tonal shaping to suit various musical styles and preferences.

Connectivity options are robust, featuring stereo input for keyboards and other stereo-capable instruments, as well as a footswitch jack for remote control of chorus and vibrato effects. The amp also includes a line out, headphone jack, and effects loop, making it suitable for both live performances and studio environments.

The JC-40's build is solid and roadworthy, designed to withstand the demands of frequent performance. Its compact size and relatively lightweight make it easy to transport while still packing a punch in terms of sound output. Overall, the Roland JC-40 Jazz Chorus Amplifier is a reliable choice for musicians who prioritize pristine clean tones and stereo effects in a portable package.

Roland JC-40 F.A.Q.

How do I connect my Roland JC-40 to an effects pedal?

To connect an effects pedal to your Roland JC-40, use a 1/4-inch instrument cable to connect the output of the pedal to the input jack of the amplifier. Ensure the pedal is powered on and adjust the settings as desired.

What is the best way to maintain the Roland JC-40 amplifier?

Regularly dust the exterior with a soft cloth, avoid exposure to moisture, and periodically check cables and connections for wear. Also, ensure the amplifier is turned off and unplugged when not in use.

How can I troubleshoot a buzzing sound coming from my JC-40?

First, check all cable connections and ensure they are secure. Test with different cables and guitars to rule out external issues. If the problem persists, consult the manual for grounding issues or contact Roland support.

Can I use the JC-40 for bass guitars?

While the JC-40 is designed for electric guitars, it can be used for bass guitars at lower volumes. However, for optimal sound and equipment longevity, consider using an amplifier specifically designed for bass.

What should I do if the JC-40 does not power on?

Check if the power cable is properly connected and that the outlet is functioning. Ensure the power switch is in the 'on' position. If the problem continues, there may be an internal issue that requires professional servicing.

How can I achieve a clean jazz tone with the JC-40?

Set the EQ controls to a balanced setting, use the clean channel, and adjust the reverb and chorus to taste. Using a guitar with humbucker pickups can also enhance the jazz tone quality.

Is the JC-40 suitable for live performances?

Yes, the JC-40 is suitable for small to medium-sized venues due to its powerful output and stereo capabilities. For larger venues, you might need to mic the amp or use a direct line out to the PA system.

How do I clean the input jacks of my Roland JC-40?

Use a contact cleaner on a cotton swab or a specialized jack cleaning tool to gently clean the input jacks. Ensure the amplifier is powered off and unplugged before cleaning.

Can I record directly from my JC-40 amplifier?

Yes, you can use the line out or headphone out jack to connect directly to an audio interface or recording device. This allows you to capture the amp's sound without needing a microphone.

What effects are built into the Roland JC-40?

The Roland JC-40 includes built-in chorus and reverb effects, which can be adjusted independently to enhance your sound. The chorus effect features the signature stereo sound that the JC series is known for.