Amp Settings for Jazz Guitar
Updated Nov 13, 2026 · By 
Jonah Mercer · Editorial policy
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Set the amp for a clean sound: gain down, treble and bass near the center, and a little reverb. The Fender Champion II 25 gives you gain, volume, voice, treble, bass, FX level and FX select as controls, so each part of the sound has its own control.
Start with the gain down
Turn the gain down to start, then raise the volume to the level you want. Gain adds distortion as it goes up, so a low gain keeps the sound clean when you play hard. The Fender Champion II 25 and the CXLWZ amp both give you gain and volume controls, so set gain low and use volume for loudness.
Set treble and bass near the center
Set treble and bass near the center, then adjust one at a time until the sound sits right. The Fender Champion II 25 has treble and bass controls plus a voice control, and the CXLWZ amp has bass, treble and volume knobs. Leave the tone controls alone once the sound is clean and even, and change only one at a time after that.
Add reverb and effects last
Set the clean sound, then add reverb and other effects. The Fender Champion II 25 has built-in reverb, delay, chorus, tremolo and vibratone, with an FX level and FX select control. The Positive Grid Spark 2 has an HD amp and effects library, and the Spark GO holds 33 amps and 43 effects, so pick an effect after the clean sound is set.
Use headphones for quiet playing
Use the headphone output when you want to play without the speaker. The Fender Champion II 25 has a headphone output jack, and the CXLWZ amp has a headphone jack. The Spark GO plays through its speaker or headphones. The Spark 2 has a 3.5mm jack.
What you need
Positive Grid Spark 2 50W Smart Guitar
A 50W amp with a 12 in. speaker, an HD amp and effects library, a built-in looper and Bluetooth, for clean jazz sounds at home.
- Power: 50 W, the most here
- Speaker size: 12 in, the largest here
- Built-in effects / amp models
- Bluetooth
Positive Grid Spark GO 5W Ultra-Portable Smart
A 5W amp with a 6 in. speaker, 33 amps and 43 effects, Spark AI and a battery that lasts up to 8 hours.
- Power: 5 W
- Speaker size: 6 in
- Built-in effects / amp models
- Bluetooth
Fender Champion II 25 Watt Electric Guitar
A 25W amp with an 8 in. speaker, gain, volume, voice, treble, bass and FX controls, reverb and a 2-year warranty.
- Power: 25 W
- Speaker size: 8 in
- Built-in effects / amp models
- Headphone output
- 2 year warranty stated
CXLWZ Electric Guitar Amp 20 Watt Amplifier Portable
A 20W amp with a 6.5 in. speaker, gain, bass, treble and volume knobs, a headphone jack and an AUX input, at 6.2 lb.
- Power: 20 W
- Speaker size: 6.5 in
- Headphone output
These come from our ranked list Best Guitar Amp, which compares them spec by spec.
Frequently asked questions
Should gain stay low for jazz guitar?
Yes. Low gain keeps the sound clean, and the Fender Champion II 25 and the CXLWZ amp both give you gain and volume controls, so set gain low and use volume for loudness.
Where should treble and bass sit for jazz?
Near the center. The Fender Champion II 25 has treble and bass controls plus a voice control, and the CXLWZ amp has bass, treble and volume knobs. Adjust one at a time until the sound sits right.
Do these amps have reverb for jazz?
The Fender Champion II 25 has built-in reverb, delay, chorus, tremolo and vibratone. The Positive Grid Spark 2 has an HD amp and effects library, and the Spark GO holds 33 amps and 43 effects.
Can I play jazz quietly with headphones?
Yes. The Fender Champion II 25 has a headphone output jack, and the CXLWZ amp has a headphone jack. The Spark GO plays through its speaker or headphones.
Ranked guitar amps lists
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