Roland JC-40

Electric Guitar Combo

Roland's famous Jazz Chorus Clean-sound and Stereo Chorus Effect in a compact combo amplifier with more advanced possibilities for the modern guitarist

Power: 40 W Stereo
Components: 2x 10" Speakers
The stereo input allows real stereo sound with stereo effect pedals and modeling devices
Internal effects: Chorus, vibrato, reverb and distortion
Foot switch connector for switching internal effects ( footswitch not included)
Mono and stereo effects loop
Mono and stereo line out
Headphone output
Controls: Volume, Treble, Middle, Bass, Distortion, Reverb, Speed, Depth
Bri (Bright) switch
Vib / Chorus switch
Effects loop switch
Dimensions (W x D x H): 592 x 251 x 436 mm
Weight: 15.8 kg
Suitable dust cover: Art.438081 (not included)

30-Day Money-Back Guarantee

3-Year Thomann Warranty

Available since October 2015
Item number 368476
Sales Unit 1 piece(s)
Power rating 40 W
Speaker 2x 10"
Channels 1
Reverb Yes
Effects Processor Yes
Bluetooth No
External FX Loop Yes
Line Input No
Recording Output Yes
MIDI Interface No
Connection for External Speaker No
Headphone Output Yes
Footswitch connection Yes
Incl. Footswitch No
Weight in kg 15,8 kg

€777

All prices incl. VAT

Sales Rank

in Solid-State Guitar Combos

Information on the disposal of old devices

This is what customers who viewed this product bought

Quilter Aviator Cub 112 Combo

€799

85 Customer ratings

5 69 Customers 4 14 Customers 3 1 Customer 2 1 Customer 1 0 Customers

4.8 / 5

handling

features

sound

quality

Review guidelines

59 Reviews

Awesome amp

Cryingwhale 01.08.2020

Was thinking of investing into a tube amp, like the Fender Blues junior or smth, but decided to go for a solid state amp because of easier handling and reliability. So i went for the best sounding solid state amp there is, the JC.
The stereo chorus sound is unbelievable and makes you high the first time you dial it.
The clean sound is punchy, and crystal clear. A custom 50s type jazz guitar with a P90 sounds like a Wes Montgomery or George Benson record. A Fender Strat MIJ sounds much more rounded and deep than other solid state amps Ive played through.
I dont use a lot of pedals, just a Vox wah and a Morley Pro series Distortion, and the JC takes them very good. I dont use the built in distortion, but its much better than other models of JCs I played, i.e. the old JC 50.
It sounds good on a soft volume, and it also can get loud. For most of the time when playing with bands (with loud drummers) on stage or studios, my volume knob is at 12 o clock.
Great for both a percussive, dry guitar sound, and a wet, lead-ish one.
Not too heavy, and looks very sturdy.

Cons: a back plate would be nice.

All in all: perfect for my needs, and the sound is... iconic! You'll definitely hear it

handling

features

sound

quality

Report

Do you believe this rating to be inaccurate or unacceptable for some reason? Please give us the reason for your assessment in the following text box and – if possible – your e-mail address for further questions.

Great Stereo Potential, Limited by the Effects Loop

amavel pinto 20.03.2026

The Roland JC-40 is, on paper, an ideal solution for guitarists seeking a true stereo amplifier platform. The dual inputs preserve discrete left/right signal paths, allowing proper stereo imaging at the front end—exactly what you’d expect for time-based and modulation effects.

However, the architecture of the effects loop introduces a critical limitation. The send stage collapses the signal to mono before routing it out, effectively summing both channels. While the return reintroduces stereo, the original spatial information has already been lost. This design breaks the integrity of the stereo signal chain.

From a signal flow perspective, this forces two compromised use cases:

Either you run a mono signal into an external processor that generates stereo post-loop,

Or you maintain true stereo input but completely bypass the effects loop.

For players relying on stereo delay, reverb, or modulation units within the loop, this becomes a structural bottleneck. It limits proper gain staging and undermines the purpose of a stereo amp in a professional setup.

Tonally, however, the JC-40 remains very strong. It retains the characteristic clean headroom, fast transient response, and chorus signature associated with the JC lineage. In many ways, it does function as a compact JC-120, without sacrificing core sound quality.

handling

features

sound

quality

Report

JC-40

Anonymous 05.11.2015

I did have very high recommendation for clean tone to buy Roland JC. I need it mostly for the jazzy music.
I was probably one of the first buyers from Thomann and there were no reviews available from buyers yet. I usually do not take sellers and especially presenters reviews very seriously and now I got a confirmation that I've been right on that.

Pros -
really loud, it has The Chorus and Vibrato, it has FS i/o for each effect etc. good for OD and different effects probably

Cons -
10" has not enough "bottom" for clean (loudness does not compensate that); FX loop has no true bypass;
MAIN downside is incredible hiss, which makes this model unusable on lower volume, especially to mic it. Certainly not in studio.

handling

features

sound

quality

Report

the best clean amp ever

jshtrnr 07.06.2022

unbelievably loud, very compact and light, limitless clean headroom and amazing chorus

handling

features

sound

quality

Report

Read all reviews

Roland JC-40

Electric Guitar Combo

This is what customers who viewed this product bought

85 Customer ratings

You have to be logged in to rate products.

59 Reviews

Smart Navigator

Served with love!

Roland JC-40

Electric Guitar Combo

This is what customers who viewed this product bought

Accessories & matching items

85 Customer ratings

You have to be logged in to rate products.

59 Reviews

Compare options

Smart Navigator