Acoustic Guitar Amp Settings Explained
Updated Nov 13, 2026 · By 
Jonah Mercer · Editorial policy
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Acoustic guitar amp settings start with the two channels, the 3-band EQ and the effects. Set the instrument channel volume, shape the sound with Bass, Mid and High, then add reverb or chorus. The amps here run from 10W to 100W, with two inputs on each, so the settings work the same way across them.
Start with the two channels
Plug the guitar into the instrument channel and the microphone into the other channel. The Fender 100W, the Acoustasonic 15 and the COOLMUSIC each have two channels, and the YUER has two 1/4-inch inputs, one for guitar and one for a dynamic microphone. Set the volume for each channel on its own: the Acoustasonic 15 gives each channel independent volume control. Start with the volumes low, then raise the guitar channel until the guitar sounds clear through the speaker.
Set the 3-band EQ
Each amp here has a 3-band EQ. The COOLMUSIC names the bands Bass, Mid and High, and the bands adjust the low, middle and high parts of the sound. Start with the 3 bands in the middle, then move one band at a time and listen after each change, so you know which band moved the sound.
Add reverb, chorus and delay
Effects sit on top of the dry guitar sound. The COOLMUSIC has built-in reverb and chorus, and its reverb adds an echo-like quality to the sound. The Acoustasonic 15 has a chorus effect on the instrument channel. The YUER has reverb and delay, with the delay dedicated to the guitar and the reverb shared by the guitar and the vocals. The Fender 100W lists stereo SFX. Add one effect at a time and keep the level low, so the guitar stays in front of the effect.
Connect a phone over Bluetooth
Bluetooth streams music from a phone into the amp. The Fender 100W has built-in Bluetooth, and the COOLMUSIC lists Bluetooth with phone input, CD/MP3 input and USB. The YUER uses Wireless 5.3 for background music playback and OTG recording to a phone or laptop. Pair the phone, start the music on the phone, and set the phone volume before you set the amp volume, so the backing track sits under the guitar.
Match the wattage to the job
The amps here run from 10W to 100W. The YUER is a 10W portable amp with a 4000mAh battery, and the COOLMUSIC is a 20W amp. The Acoustasonic 15 is a 15W amp, and the Fender 100W is a 100W amp with an 8-inch speaker. The Fender lists live performance, the COOLMUSIC lists live, studio, solo performance and practice, and the YUER lists home practice and street performance. Match the amp to the job in the listing, not to a bigger number alone.
What you need
Fender 100W Acoustic Guitar Amp with Bluetooth
A 100W acoustic amp with two channels, a 3-band EQ, an 8-inch speaker, Bluetooth and a 2-year warranty.
- Power: 100 W, the most here
- Speaker size: 8 in
- Bluetooth
- 2-year warranty stated
Fender Acoustasonic 15 Acoustic Guitar Amplifier Bundle
A 15W acoustic amp with two channels, a 3-band EQ, a 6-inch speaker, a chorus effect and a headphone output.
- Power: 15 W
- Speaker size: 6 in
COOLMUSIC Acoustic Guitar Amplifier
A 20W acoustic amp with two channels, a 3-band EQ, reverb and chorus, Bluetooth and a 3-year warranty.
- Power: 20 W
- Speaker size: 8 in
- Bluetooth
- 3-year warranty stated
YUER BA-10Pro 10W Portable Acoustic Guitar Amp
A 10W portable acoustic amp with two 1/4-inch inputs, reverb and delay, Wireless 5.3, OTG recording and a 4000mAh battery.
- Power: 10 W
- Speaker size: 2 in
- Mic input
- 12-month warranty stated
These come from our ranked list Best Acoustic Amp, which compares them spec by spec.
Frequently asked questions
What does the 3-band EQ do on an acoustic amp?
It splits the sound into Bass, Mid and High bands, and each band has its own control. Each amp here has a 3-band EQ, and the COOLMUSIC names the bands Bass, Mid and High. Move one band at a time and listen after each change.
Can I plug a microphone into an acoustic guitar amp?
Yes, when the amp has a microphone channel or input. The Fender 100W and the Acoustasonic 15 each have two channels for instrument and microphone use, and the YUER has two 1/4-inch inputs for guitar and a dynamic microphone.
Do acoustic amps have Bluetooth?
Some do. The Fender 100W has built-in Bluetooth, and the COOLMUSIC lists Bluetooth with phone input and USB. The YUER uses Wireless 5.3 for background music playback. Check the listing for Bluetooth before you buy.
What is the difference between reverb and chorus?
Reverb adds an echo-like quality to the sound, and chorus adds variation to the instrument channel. The COOLMUSIC has reverb and chorus, the Acoustasonic 15 has chorus on the instrument channel, and the YUER has reverb and delay. Try the effects in turn.
Ranked acoustic guitar amps lists
Product details come from each Amazon listing and can change. Check the listing before you buy.