Marshall AS50R Acoustic Soloist 50W Acoustic Guitar Amplifier, (Used)

The Marshall AS50R Acoustic Soloist is a 50-watt acoustic guitar amplifier designed for electro-acoustic players, singer-songwriters and performers who need a compact amp with clear sound, onboard effects and flexible input options. Built specifically for acoustic instruments, the AS50R gives players a practical all-in-one solution for amplifying guitar and vocals in small gigs, home practice, rehearsal spaces and intimate performance settings.

This pre-owned Marshall AS50R is listed in Very Good condition, meaning it shows some cosmetic wear consistent with careful ownership but remains fully functional. It comes with a power cable, so it is ready for mains-powered use.

With two channels, built-in chorus, reverb, anti-feedback controls, an effects loop, two 8" speakers and a high-efficiency piezo tweeter, the AS50R is a strong choice for players who want a straightforward acoustic amp with genuine performance flexibility. Marshall’s own manual describes the AS50R as a compact and portable 50-watt combo amplifier designed specifically for acoustic instruments, with separate support for instrument pickups and microphone use.

Condition Overview

Very Good Condition

This Marshall AS50R is in Very Good condition. This means it shows some cosmetic wear consistent with careful ownership, but remains fully functional and ready to use.

Very Good condition is ideal for players who want a clean, reliable pre-owned acoustic amplifier that has been looked after and is ready for regular use.

What’s Included?

✔ Marshall AS50R Acoustic Soloist Amplifier
✔ Power Cable

✘ No Footswitch Included
✘ No Original Box Included
✘ No Additional Accessories Included

Condition Notes

This amplifier is listed in Very Good condition, so it shows light signs of previous use such as small marks, minor scuffs or general handling wear.

No faults or modifications have been supplied for this listing. The amplifier has been tested for functionality before sale.

Fair Deal Inspection & Assessment

This pre-owned Marshall AS50R has been inspected and assessed by the Fair Deal Music team before being offered for sale.

Our checks include:

• Amplifier powered up and tested
• Acoustic instrument input checked
• Microphone channel checked
• Channel controls tested
• EQ controls checked
• Chorus tested
• Reverb tested
• Effects loop tested
• Speaker output tested
• Anti-feedback controls checked
• Power cable checked for basic operation
• General sound performance assessed

Service / Setup Work

As part of our pre-owned amplifier checks, this Marshall AS50R has been tested to make sure it is working correctly before leaving the shop.

For acoustic amplifiers, we check the inputs, outputs, effects, speaker response and general clarity of sound. Acoustic amps need to reproduce detail and dynamics cleanly, so our testing focuses on ensuring the amp performs properly for electro-acoustic guitars, vocals and small performance setups.

Why Choose The Marshall AS50R?

Designed Specifically For Acoustic Instruments

The Marshall AS50R is built for acoustic players rather than electric guitarists. Channel 1 is designed for instruments with transducers such as piezo or magnetic pickups, while Channel 2 supports microphone use for vocals or instrument reproduction. This makes it far more suitable for electro-acoustic performance than a standard electric guitar amp.

50 Watts Of Clean Acoustic Power

With 50 watts of output, the AS50R gives players enough volume for home use, rehearsals, small gigs and intimate performances. It is compact and portable while still providing the headroom needed for clear acoustic amplification.

Two 8" Speakers And Piezo Tweeter

The AS50R uses two 8" speakers and a high-efficiency piezo tweeter for clear, detailed acoustic reproduction. This speaker setup helps retain the brightness, attack and natural detail of electro-acoustic guitars and vocal sources.

Built-In Chorus And Reverb

The onboard chorus and reverb give players useful ambience without needing extra pedals. The chorus can be assigned to either or both channels, while the reverb can be balanced between the channels to create the right amount of space for guitar and vocal performance.

Anti-Feedback Controls

Feedback can be a major issue when amplifying acoustic instruments. The AS50R includes anti-feedback tools including a Phase switch and frequency-controllable Notch Filter, helping players manage problem frequencies in live environments.

Practical For Singer-Songwriters

The two-channel design makes the AS50R especially useful for singer-songwriters. You can run an electro-acoustic guitar through one channel and a microphone through the other, creating a compact self-contained performance setup for small venues, open mics, rehearsals and home use.

Comparison Against Popular Alternatives

Marshall AS50R vs Marshall AS50D

The Marshall AS50D is the later and more widely seen model in the same acoustic amp family, with updated digital effects and a similar acoustic performance purpose. The AS50R remains a strong choice for players who want a practical, straightforward Marshall acoustic amp with reverb, chorus and anti-feedback controls.

Marshall AS50R vs Fishman Loudbox Mini

The Fishman Loudbox Mini is compact, modern and extremely popular with singer-songwriters. The Marshall AS50R offers a more traditional Marshall acoustic combo format with dual 8" speakers, built-in chorus and a familiar two-channel layout. Choose the Marshall if you prefer a slightly larger acoustic combo with classic amp-style controls.

Marshall AS50R vs Roland AC-60

The Roland AC-60 is a compact stereo acoustic amp with a polished, hi-fi-style sound and strong portability. The Marshall AS50R offers its own British acoustic amp character, 50-watt output and useful live tools such as chorus, reverb and feedback control. Both are strong options for small acoustic performance, with the Marshall offering a more traditional combo feel.

Marshall AS50R vs Standard Electric Guitar Amp

A standard electric guitar amp colours the sound heavily and is not designed to reproduce acoustic instruments naturally. The Marshall AS50R is built specifically for acoustic sources, giving electro-acoustic guitars a clearer, more natural sound with better support for vocals and microphone input.

Who Is It For?

Beginner Players

The AS50R is a strong choice for beginners who are starting to perform with an electro-acoustic guitar. It gives enough power for small spaces and includes useful effects and feedback controls without being complicated.

Intermediate Players

Intermediate players will benefit from the AS50R’s flexible two-channel design. It is ideal for open mic nights, rehearsals, acoustic duos, songwriting sessions and small performances where guitar and vocals need to be amplified together.

Professional Players

Professional players can use the AS50R as a compact acoustic performance amp, rehearsal tool or small venue solution. It is particularly useful for stripped-back sets, teaching spaces, acoustic showcases and portable singer-songwriter rigs.

Suitable Uses

This Marshall AS50R is well suited to:

• Electro-acoustic guitar
• Singer-songwriter performance
• Vocals and guitar
• Open mic nights
• Acoustic duos
• Folk
• Country
• Acoustic rock
• Worship music
• Rehearsals
• Teaching rooms
• Small venues
• Home practice
• Compact acoustic PA-style setups

Why Choose A Dedicated Acoustic Guitar Amplifier?

A dedicated acoustic guitar amplifier is designed to reproduce the natural character of an electro-acoustic instrument. Electric guitar amps are voiced to add colour, compression and drive, which can make acoustic guitars sound boxy, harsh or unnatural. Acoustic amps are designed for clarity, detail and a wider frequency response.

The Marshall AS50R gives acoustic players a practical setup with instrument and microphone inputs, built-in ambience, anti-feedback control and enough power for small performance settings. This makes it especially useful for singer-songwriters and acoustic performers who want one compact amp instead of carrying a separate PA system.

For players using piezo-equipped guitars, magnetic acoustic pickups or a vocal microphone, the AS50R offers a simple and effective way to get heard without overcomplicating the setup.

Looking for advice on choosing the right acoustic guitar amp, singer-songwriter setup or electro-acoustic performance rig? Our experienced team of musicians can help by phone, online or in-store.

Story & Context: Marshall Acoustic Soloist Series

Marshall is best known for electric guitar amplifiers, but the Acoustic Soloist range was created to give acoustic players a dedicated amplification solution. The AS50R was designed as a compact 50-watt combo for acoustic instruments, with enough flexibility to handle pickups, microphones, onboard effects and feedback control.

The design reflects the needs of gigging acoustic musicians: clear sound, simple controls, portability and the ability to run both guitar and vocal sources through one amp. Marshall’s AS50R manual describes it as suitable for acoustic players who need a system that works for small gigs as well as home use.

For players who want Marshall build character in an acoustic-focused format, the AS50R remains a practical and appealing pre-owned option.

Technical Specifications

Power Requirements

The Marshall AS50R is a mains-powered acoustic guitar amplifier and uses the included power cable for operation.

It does not require batteries. Use a safe mains connection and make sure the amp is connected to the correct power source before use.

Why Buy From Fair Deal Music?

Fair Deal Music is a family-run independent music retailer founded in 1987 and is Birmingham’s largest independent music store. With over 6,000 Excellent Trustpilot reviews, we have built our reputation on helpful advice, reliable service and genuine product knowledge.

When buying a pre-owned acoustic amplifier from Fair Deal Music, you benefit from a team that checks equipment before it leaves the shop. Our staff are musicians themselves and can offer advice by phone, online or in-store, whether you are choosing an amp for electro-acoustic guitar, vocals, open mic nights, worship settings or singer-songwriter performances.

We offer fast UK delivery, secure ordering and a large Birmingham showroom where you can browse new, used and vintage guitars, amps, effects, keyboards, pianos, drums, PA equipment and accessories. We also buy, sell and trade pre-owned gear, helping musicians upgrade, part-exchange or sell used equipment with confidence.

FAQ

Can the Marshall AS50R amplify guitar and vocals at the same time?

Yes. The two-channel design allows an electro-acoustic guitar and a microphone to be used together, making it a practical choice for singer-songwriters and small acoustic performances.

Is the Marshall AS50R suitable for open mic nights?

Yes. Its 50-watt output, compact format, microphone support and built-in reverb/chorus make it well suited to open mic nights, small venues and acoustic showcases.

Is this better than using an electric guitar amp for acoustic guitar?

Yes. The AS50R is designed for acoustic instruments, so it gives a clearer and more natural sound than a standard electric guitar amp.

Can it help reduce feedback?

Yes. The AS50R includes a Phase switch and Notch Filter, giving players useful tools for controlling acoustic feedback in live settings.

Can I use external effects with it?

Yes. The AS50R includes a parallel effects loop, allowing external effects to be added into the signal chain.

Is it suitable for home practice?

Yes. Although it is capable of small performance use, it also works well at home for players who want a clear acoustic sound with built-in effects.

Can it be used for other acoustic instruments?

Yes. It is designed for acoustic instruments with pickups and can also support microphone input for instrument reproduction.

Is it suitable for busking?

The AS50R is mains-powered, so it is suitable for busking only where a safe mains power source is available. For battery-powered busking, a dedicated portable amp would be more practical.

Is it good for worship or church use?

Yes. Its guitar-and-vocal capability, compact size and clean acoustic sound make it a useful option for small worship settings, practice rooms and church acoustic setups.

Can I try this amplifier in-store?

Fair Deal Music has a large Birmingham showroom, and our team can offer advice on Marshall acoustic amps, electro-acoustic amplification and singer-songwriter setups.