Roland AC-40

(1 customer review)


The Roland AC-40 amps give you everything you need for gigs, solo sessions, and jamming with friends, in one powerful and portable package.

SKU: 6962486 Category: Tag:


Attention all guitar players! The Roland AC-40 guitar amp is the answer to all your amplifier needs. This compact yet powerful amp is perfect for both acoustic and electric guitar, making it the perfect tool for any musician.

The first thing you’ll notice about the Roland AC-40 is its sleek and stylish design. It’s small and lightweight, making it easy to transport from gig to gig. Despite its small size, it packs quite a punch. With 40 watts of power, it’s more than enough to fill a small to medium sized venue with rich, clear sound.

This amp has two channels – one for acoustic and one for electric guitar – with independent tone controls for both. This means you have total control over your sound, allowing you to create the perfect tone to fit your music style. The amp also features a built-in effects processor, including reverb, chorus, and delay. This allows you to add depth and texture to your sound without the need for any additional pedals.

Another great feature of this amp is its versatility. The Roland AC-40 has a range of input options, including XLR, ΒΌ inch, and RCA, allowing you to connect various instruments including keyboards and microphones. This makes it a great option for small gigs or jam sessions where different instruments may be involved.

Above all, the Roland AC-40 guitar amp is an excellent choice for anyone looking for a reliable, powerful and versatile amplifier. Whether you’re just starting out or a seasoned musician, this amp is sure to impress. Its sleek design, range of controls, and various input options make it stand out from the crowd. Don’t wait any longer, get your hands on the Roland AC-40 today and experience the perfect sound for yourself!

Roland AC-40 properties

Product name AC-40
Brand Roland
Type Guitar Amplifiers

Additional information


Product type

1 review for Roland AC-40

  1. Ken

    I have had it for several months, it is really convenient to use, I recommend it to everyone! – sound quality – a whole lot of 9 effects + modifications – interesting design – mega simple operation – modern solutions – mobile application very transparent and allowing full control via BT – built-in ready foundations separately or directly from the amplifier, plus metronome and tuner – well-set presets , after a slight correction, we can go on stage

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Frequently Asked Questions:

How does the Roland AC-40's COSM modeling technology replicate the sound and behavior of classic tube amps, allowing for greater tonal variety in live performances?

The Roland AC-40's COSM (Cosmic Sound Modeling) technology enables it to faithfully reproduce the sound and behavior of classic tube amplifiers. This technology allows for a greater range of tonal variety during live performances by accurately modeling the response of the amplifier to various inputs, such as pick attack or playing dynamics. By incorporating complex mathematical models that simulate the behavior of tubes, transformers, capacitors, and other analog components, COSM creates an authentic and dynamic sound that is highly responsive to a player's touch and technique. This level of realism allows for greater expression and flexibility in live performances, as well as more versatility in studio recordings.

How does the COSM modeling technology in the Roland AC-40 distinguish itself from other digital amplifier models in terms of sound quality and versatility?

The COSM (acronym for "Genuine Roland COSM") modeling technology used in the Roland AC-40 sets it apart from other digital amplifier models in terms of both sound quality and versatility. Unlike traditional digital modeling technologies that merely replicate the tonal characteristics of pre-selected amplifiers, COSM goes a step further by accurately reproducing the complex interactive behaviors of vintage tube amplifiers. This means that not only does each selected amp type provide its own unique tone, but the interaction between the components also results in a more natural and dynamic playing experience. In addition to the high-quality amp models, COSM also includes a range of effects and customization options, allowing users to fine-tune their sound to suit their personal preferences or specific musical styles. This level of versatility makes the Roland AC-40 an ideal choice for musicians who require a wide range of tone options in one compact and portable package. Overall, the COSM technology used in the Roland AC-40 provides an unparalleled level of sound quality and versatility that is not found in other digital amplifier models on the market. Whether you're a seasoned professional or just starting out, this amp is sure to meet and exceed your expectations.

How does the COSM modeling technology in the Roland AC-40 amp compare and contrast to similar features found on competing products from brands like Line 6 and Boss?

The COSM (Giga Processing) modeling technology in the Roland AC-40 amplifier is a standout feature that sets it apart from similar offerings from competitors such as Line 6 and Boss. While these brands also utilize digital modeling to recreate the sounds of various amps and effects, COSM's advanced algorithmic processing provides greater accuracy and detail. One key difference is the number of models available. The AC-40 offers a whopping 32 different amplifier types, including classic vintage and modern high-gain options, while Line 6's Helix LT offers 20 and Boss' Katana Air has 55 (which includes built-in effects). While more models certainly isn't always better, the sheer breadth of choice that COSM provides is impressive. Another aspect where COSM shines is its ability to accurately capture the subtle nuances and subtleties of each amplifier type. This results in a more authentic and realistic playing experience, which can be a game-changer for musicians looking to achieve specific tonal characteristics. Coupled with this, COSM's modeling also includes a variety of effects that work seamlessly alongside the amp models. These include modulation, delay, reverb, and more, all of which can be tweaked and adjusted individually or in combination. Again, while competitors like Line 6 and Boss offer similar options, COSM's modeling is generally considered to be more detailed and versatile. In terms of usability, the AC-40's interface is intuitive and user-friendly, making it easy to navigate and dial in sounds quickly. The amp also features an integrated USB/audio interface for easy connectivity with computers or digital audio workstations. This can be especially useful for recording, practicing, or streaming purposes. Overall, while Line 6 and Boss are respected names in the world of amplifier modeling technology, Roland's COSM stands out as a leader in this field, offering unparalleled accuracy, versatility, and ease-of-use. If you're looking for an amp with a wide range of models, realistic tonal characteristics, and intuitive controls, the AC-40 is definitely worth considering.

What unique features set the Roland AC-40 apart from other guitar amplifiers in terms of sound quality and versatility?

The Roland AC-40 guitar amplifier stands out from its competitors in terms of both sound quality and versatility due to several unique features. Firstly, it boasts a powerful 40-watt output that can be scaled down for practice sessions or cranked up for live performances, making it suitable for a wide range of environments. Secondly, the AC-40 offers an extensive selection of built-in effects, including modulation, delay, and reverb, that are optimized specifically for acoustic-electric guitar sounds. This ensures that your acoustic tone is rich, full, and natural, whether you're playing solo or backing up other instruments in a band setting. Thirdly, the AC-40 features an onboard USB audio interface, which allows you to connect directly to a computer or mobile device for recording, streaming, or practicing with virtual sessions. This means that you can achieve studio-quality sound without needing to invest in expensive external equipment or software. Finally, the amplifier's user-friendly controls and intuitive layout make it easy to dial in your desired tone quickly and accurately, whether you're a seasoned pro or just starting out. Overall, the Roland AC-40 offers a unique combination of power, versatility, and convenience that sets it apart from other guitar amplifiers on the market today.