Boss JC-40 Jazz Chorus 40-Watt 2x10" Combo Guitar Amplifier – Black | No Limit Guitar Co, Idaho Falls

The Roland JC-40 Jazz Chorus brings the legendary, ultra-clean tone of the iconic JC-120 into a more compact, manageable combo format — a 40-watt stereo amplifier powering dual 10-inch speakers for the kind of detailed, shimmering clean sound that the Jazz Chorus series has been famous for since its introduction. Built-in chorus, vibrato, reverb, and distortion effects cover the JC series' signature sound palette in an updated, refined selection, while stereo inputs, outputs, and a stereo effects loop give the JC-40 genuine flexibility for guitars, keyboards, and multi-effects processors alike. For players chasing the ultimate in clean tone with the classic Jazz Chorus character, the JC-40 delivers the goods in a package that fits far more rigs and rooms than its larger sibling.

Product Overview

The JC series' reputation for exceptional clean tone is built on Roland's solid-state circuit design — a deliberate departure from tube amplifier breakup that instead delivers pristine, detailed, headroom-rich clean sound with the clarity and articulation that jazz, funk, and clean-tone-focused players have valued for decades. The JC-40 condenses this signature sound into a 2x10" stereo combo format, producing the wide, dimensional stereo chorus effect the Jazz Chorus name is built around — when the built-in chorus effect is engaged, the stereo speaker configuration creates a genuinely spacious, swirling sound that mono amplifiers simply cannot replicate, a defining characteristic of the JC sound since its earliest iterations.

Built-in effects cover the practical range most clean-tone players need without requiring a separate pedalboard. Chorus and vibrato recreate the lush, modulated character that the Jazz Chorus series is named for, reverb adds spatial depth and ambience, and distortion provides an onboard drive option for players who occasionally need overdriven tones without switching to a separate amplifier or pedal. Three-band EQ allows tonal shaping across bass, mid, and treble ranges to dial in the right clean tone for any guitar and playing context.

Stereo inputs make the JC-40 a genuinely versatile platform beyond standard guitar use — connecting a stereo multi-effects processor or keyboard allows the JC-40 to reproduce the full stereo image of those sources, rather than collapsing them to mono as a standard single-input guitar amp would. The stereo effects loop extends this versatility further, allowing external effects to be integrated into the signal chain with full stereo processing — opening up the possibility of creating expansive, immersive soundscapes from a single amplifier rather than requiring a stereo pair of amps. Dedicated footswitch jacks for chorus/vibrato, reverb, and distortion allow hands-free control of each effect independently during a performance, and a 1/4" headphone output supports silent practice. At 34.83 lbs. with a durable black Tolex finish, the JC-40 is built for regular gigging and studio use in a footprint considerably more manageable than the JC-120.

Ideal For

• Jazz, funk, and clean-tone-focused guitarists who want the legendary Jazz Chorus clean sound in a more compact combo format
• Players who want built-in chorus, vibrato, reverb, and distortion effects without assembling a separate pedalboard
• Keyboardists and multi-effects users who want a stereo-capable amplifier that can reproduce the full stereo image of their source
• Performers who want footswitch-controllable effects for hands-free switching during live performance
• Guitarists in Idaho Falls looking for a professional-grade, stereo-capable combo amp with the iconic JC-120 tone in a smaller package

Key Features

Classic Jazz Chorus Clean Tone
The JC-40 delivers the pristine, detailed, headroom-rich clean tone that the Jazz Chorus series has been known for since the JC-120 — solid-state clarity and articulation prized by jazz, funk, and clean-tone players for decades.

Stereo 40W Output Through Dual 10" Speakers
A stereo 40-watt amplifier powers two 10-inch speakers, producing the wide, dimensional stereo chorus effect that defines the JC sound — a spacious, swirling character that mono amplifiers cannot replicate.

Built-In Chorus, Vibrato, Reverb, and Distortion
An updated selection of the JC series' signature effects covers the practical tonal range most clean-tone players need, from lush modulation to onboard drive, without requiring a separate pedalboard.

Stereo Inputs, Outputs, and Effects Loop
Stereo I/O and a stereo effects loop allow the JC-40 to reproduce the full stereo image of keyboards and multi-effects processors, and to integrate external effects with full stereo processing for expansive, immersive soundscapes from a single amplifier.

Footswitch-Controllable Effects
Dedicated 1/4" footswitch jacks for chorus/vibrato, reverb, and distortion allow independent, hands-free control of each effect during live performance (footswitches sold separately).

3-Band EQ
Bass, mid, and treble controls provide tonal shaping flexibility to dial in the ideal clean tone for any guitar and performance context.

What's Included

• Boss JC-40 Jazz Chorus 2x10" Combo Amplifier (Black)
• Standard IEC AC Cable
• Free standard shipping

Note: Footswitches sold separately.

Technical Specifications

Model JC-40

Type Solid State Combo

Output Power 40 Watts (Stereo)

Channels 1

Speakers 2× 10"

Effects Chorus, Vibrato, Reverb, Distortion

EQ 3-Band

Inputs 2× 1/4" (Mono/Stereo)

Outputs 2× 1/4" (Line)

Effects Loop Yes (Stereo)

Headphone Output 1× 1/4"

Footswitch I/O 3× 1/4" (Chorus/Vibrato, Reverb, Distortion)

Footswitch Included No

Construction Black Tolex

Height 17.16"

Width 23.31"

Depth 9.88"

Weight 34.83 lbs.

Power Source Standard IEC AC Cable

Manufacturer Part # JC-40

Get Your Hands on This Jazz Chorus Combo Today

The Roland JC-40 Jazz Chorus is available now at No Limit Guitar Co in Idaho Falls. Stop in to hear the legendary clean tone in person, or reach out online to arrange your purchase. The classic Jazz Chorus sound, now in a combo that fits in far more rigs and rooms.