Tone library / Yungblud / Fleabag

Fleabag amp settings — Boss Katana gen 3

The Yungblud guitar tone for “Fleabag”, dialed in for a Boss Katana gen 3 with a Phoenix .. Studio single (2021)

Original rig

Fender Telecaster / Gibson SG into cranked Marshall JCM800 / DSL and ProCo Rat distortion

Aggressive, gritty modern grunge/pop-punk distortion with biting upper-mids

Amp settings — Boss Katana gen 3

CHANNELBrown amp typeBOOSTon

Knob	Setting (0–10)
Gain	7
Bass	5
Mid	7
Treble	6
Reverb	2
Master	5

Don’t have a Boss Katana gen 3? Match your own rig →

Guitar

PICKUPbridge TONE10 VOLUME10

Why these settings

The Katana Gen 3's Brown amp type emulates the high-gain Marshall crunch used on the track. Dialing mids to 7 and treble to 6 captures the sharp 90s alt-rock bite without the harshness of a digital top end. Activating the onboard booster provides the tight saturation of the original Rat/JCM stack without requiring external pedals.

PRO TIPDig in aggressively near the bridge with a heavy pick (1.0mm+) to accentuate the percussive, raw grunge attack in the main driving riff.

Get this tone on your amp

These settings are for a Boss Katana gen 3. ToneAdapt matches any song to whatever amp, guitar and pedals you own — first match is free.

Get ToneAdapt on Google Play

More tones for the Boss Katana gen 3

Fade to blackMetallical One Step CloserLINKIN PARK Thank YouEvans Blue The Shortest StrawMetallica

Find your amp

Browse

Boss Katana gen 3 settingsALL SONGS FOR THIS AMP Yungblud tonesALL SONGS Tone libraryEVERYTHING

Song, artist and gear names are used to identify the tone being matched; ToneAdapt is not affiliated with or endorsed by the artists or manufacturers mentioned. Settings are AI-generated starting points — trust your ears.