An acoustic amp is not an electric guitar amp with a different badge. It is closer to a small, full-range PA: it has to reproduce the whole frequency range of a piezo or soundhole pickup without adding grit, it usually needs a second channel for your voice, and it should fight feedback rather than invite it. Choosing the best acoustic guitar amp comes down to where you play, whether you sing, and whether you need battery power or a direct feed to a house PA. Below are eight well-known models across every budget band, from a tiny practice combo to a gig-ready workhorse, with honest notes on who each one is not for.
Why acoustic amps are different
Electric guitar amps deliberately colour the signal with speakers that roll off the high end and preamps built to distort. Plug an acoustic pickup into one and you get a boxy, quacky sound. Acoustic amps use full-range drivers, often a woofer plus a tweeter, and clean amplification so the natural sparkle of the strings survives. Most also add a mic input with phantom-free XLR, reverb and chorus voiced for acoustic instruments, and tools such as phase switches or notch filters that tame the low boom that causes feedback on stage.
Our picks
Fishman Loudbox Mini Bluetooth
The Fishman Loudbox Mini Bluetooth is the amp most acoustic players end up recommending to friends. It delivers 60 watts through a woofer and tweeter, with separate instrument and mic channels, reverb and chorus, a phase control and a D.I. output for sending your sound to a PA. Bluetooth lets you stream backing tracks between sets.
Best for: singer-songwriters playing cafes, open mics and small rooms.
- Pros: natural, uncoloured tone, real mic channel, D.I. out, compact.
- Cons: no battery option, and effects are basic compared with the BOSS below.
Fishman Loudbox Artist
The Fishman Loudbox Artist scales the same idea up to 120 watts with fuller low end and more headroom. Both channels accept either an instrument or a microphone, so a duo can share one amp, and the feedback-fighting tools are more thorough than on the Mini.
Best for: working players who gig in bars and want an amp that doubles as a small PA.
- Pros: serious headroom, flexible channels, gig-grade D.I. and build.
- Cons: heavier and pricier than most home players need.
BOSS Acoustic Singer Live LT
The BOSS Acoustic Singer Live LT is built around the solo performer. It pairs guitar and vocal channels with BOSS’s acoustic resonance processing, which helps an under-saddle piezo sound more like a miked guitar, plus onboard effects voiced for voice and strings and a line out for the PA.
Best for: players with harsh-sounding piezo pickups who want a more natural, woody tone.
- Pros: excellent pickup-enhancing processing, useful vocal effects, compact.
- Cons: more controls to learn than the Fishman, and no battery power.
Fender Acoustasonic 15
The Fender Acoustasonic 15 is the classic entry-level choice. It has 15 watts, a quarter-inch instrument input and an XLR mic input on the front panel, and a whizzer-cone speaker that adds high-end detail. Chorus adds a little width without needing pedals.
Best for: beginners and bedroom players who want a proper acoustic voice for a small budget.
- Pros: affordable, simple, light, mic input included.
- Cons: not loud enough to keep up with a drummer, and no D.I. out.
Roland AC-33
The Roland AC-33 runs on batteries as well as mains power, which makes it a long-standing busking favourite. It is a stereo amp with two speakers, Roland’s well-loved chorus, reverb and a built-in looper for layering rhythm parts under a solo.
Best for: buskers and outdoor players who need clean, stereo sound away from a socket.
- Pros: battery operation, stereo chorus, looper, clean sound.
- Cons: moderate output, so it is not for loud bar gigs.
Yamaha THR30IIA Wireless
The Yamaha THR30IIA Wireless is a desktop amp that looks at home in a living room. It models the sound of studio microphones on an acoustic guitar, runs on its built-in battery, connects to a computer over USB and accepts a mic for a vocal. It is designed for home and small rooms rather than the stage.
Best for: home players and content creators who want great tone at low volume.
- Pros: superb low-volume sound, battery, USB audio, stylish.
- Cons: limited stage volume and no XLR D.I. like a gig amp.
Orange Crush Acoustic 30
The Orange Crush Acoustic 30 brings Orange’s eye-catching styling to a 30-watt combo with an 8-inch speaker. It offers two channels so you can plug in a guitar and a mic together, with onboard effects for adding space.
Best for: players who want a characterful look and a middle-of-the-road output for rehearsals and small shows.
- Pros: distinctive design, two channels, compact.
- Cons: fewer feedback-control tools than the Fishman models.
Blackstar Sonnet 60
The Blackstar Sonnet 60 puts 60 watts through a 6.5-inch speaker in a smart, blonde cabinet. It has separate guitar and mic channels and a clean, hi-fi presentation that suits fingerstyle players who want detail rather than warmth.
Best for: fingerstyle players who want a Loudbox Mini alternative with a different voice.
- Pros: clear and detailed, good power for the size, two channels.
- Cons: less widely used on stages, so fewer sound engineers know it by ear.
Comparison table
| Product | Best for | Key feature |
|---|---|---|
| Fishman Loudbox Mini Bluetooth | Cafes and open mics | 60 watts, mic channel, D.I. out |
| Fishman Loudbox Artist | Regular bar gigs | 120 watts, dual combo channels |
| BOSS Acoustic Singer Live LT | Piezo-heavy guitars | Acoustic resonance processing |
| Fender Acoustasonic 15 | Beginners | Mic input in a light combo |
| Roland AC-33 | Busking | Battery power, stereo, looper |
| Yamaha THR30IIA Wireless | Home and content | Mic modelling, built-in battery |
| Orange Crush Acoustic 30 | Rehearsals | Two channels, iconic styling |
| Blackstar Sonnet 60 | Fingerstyle detail | Clean, hi-fi voicing |
How to choose the best acoustic guitar amp
Wattage and where you play. Clean acoustic amplification needs more headroom than you might expect, because a full-range signal eats power. Around 15 to 30 watts covers home practice and quiet rooms. Cafes and open mics want roughly 50 to 60 watts. Bars and outdoor shows suit 100 watts or more, or a D.I. into the house PA.
A real mic channel. If you sing, check for an XLR input with its own volume, EQ and reverb. A shared channel forces your guitar and voice to compromise. Pair the amp with one of our best microphone stands and you have a complete small-venue rig.
D.I. output. An XLR D.I. lets the sound engineer take your signal straight into the desk while the amp acts as your personal monitor. For any gig larger than a coffee shop, it is close to essential.
Feedback control. Phase switches, notch filters and anti-feedback controls tame the low-frequency boom of a hollow body near a loud speaker. Point the amp at yourself from the side rather than straight at the guitar’s soundhole.
Battery power. Buskers need it; everyone else can skip it and save weight and money.
Your pickup matters as much as the amp. A good amp cannot fully fix a poor pickup. If you are still shopping for an instrument, see our guide to the best acoustic-electric guitars, which have pickups and preamps built in.
Starting settings that work
- EQ flat first: set every tone knob to the middle, then cut the bass slightly if the sound booms. Cutting is usually better than boosting.
- Reverb low: a touch of hall or plate adds polish, but too much smears fast strumming.
- Vocal channel: roll off some bass on the mic, add a little more reverb than on the guitar, and keep the guitar slightly under the voice.
- Placement: raise the amp off the floor and tilt it toward your ears so you can hear yourself at a lower volume.
Recording rather than gigging? A microphone usually captures an acoustic better than any amp, as covered in our guide on how to record acoustic guitar with one mic. For electric players who also want a small combo, our best practice amps roundup covers that side.
FAQ
Can I plug an acoustic guitar into an electric guitar amp?
You can, and it will not damage anything, but it rarely sounds good. Electric amps cut the high end and add colour, so an acoustic pickup sounds thin and boxy. Keep the amp on its cleanest setting with the treble up if you have no other option.
How many watts does an acoustic amp need for gigs?
For quiet cafes, around 50 to 60 watts is usually plenty. For bars, outdoor events or playing with a band, look at 100 watts or more, or use the amp’s D.I. output so the PA carries most of the volume.
Is a battery-powered acoustic amp worth it?
It is if you busk, play outdoor events or move between rooms without sockets. For home and venue use, a mains-powered amp is lighter for its output and avoids running out of charge mid-set.
