21 Guns amp settings — Fender Blues Junior IV

The Green Day guitar tone for “21 Guns”, dialed in for a Fender Blues Junior IV with a Fender Vintera 60s Stratocaster. Studio version, 21st Century Breakdown (2009), produced by Butch Vig

Original rig

Fernandes Stratocaster copy ('Blue') with bridge humbucker into modded Marshall 1959SLP Plexi Super Lead, gain set for edge-of-breakup crunch

Warm, restrained crunch with mid-forward punch — ballad-style clean-to-grit climb, not full punk distortion

Amp settings — Fender Blues Junior IV

BRIGHToff

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

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Guitar

PICKUPneck TONE7 VOLUME6

Why these settings

The original uses a bridge humbucker into a cranked Plexi for warm breakup. Your Blues Junior has a Fender-voiced preamp that's brighter and more scooped than the Marshall, so mid is pushed +1 and treble cut -1.5 to compensate. Your Vintera's single coils are lower output than Armstrong's humbucker, requiring gain +2.5 to reach similar saturation. Neck pickup with tone rolled to 7 and volume at 6 nails the verses' softness — roll volume up to 10 for chorus punch.

PRO TIPThe verses sit right at the edge of clean — pick lightly and let the amp breathe; dig in on the downbeats of the chorus and the Blues Junior's 6V6 power section will push into that Plexi-style bloom without a pedal.

Get this tone on your amp

These settings are for a Fender Blues Junior IV. ToneAdapt matches any song to whatever amp, guitar and pedals you own — first match is free.

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