cant stop amp settings — Boss Katana 50 MkII

The red hot guitar tone for “cant stop”, dialed in for a Boss Katana 50 MkII with a Yamaha Revstar RSS20. Studio version, By the Way (2002) — iconic intro and main funk rhythm riff

Original rig

1962 Fender Stratocaster / 1960 Telecaster Custom into Boss CE-1 (preamp color) + Marshall Major 200W / Silver Jubilee / Fender Blackface Showman

Bright, punchy edge-of-breakup funk attack with high dynamic snap and tight low end

Amp settings — Boss Katana 50 MkII

CHANNELCrunchBOOSToff

Knob	Setting (0–10)
Gain	4
Bass	4
Mid	6
Treble	7
Reverb	2
Master	5

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Guitar

PICKUPbridge TONE10 VOLUME10

Why these settings

The Katana 50 MkII Crunch mode mimics the responsive breakup of Frusciante's cranked Marshall and Fender rigs when struck hard while remaining clean when played softly. Because the Yamaha Revstar RSS20 has fuller humbuckers compared to John's single-coil Strat/Tele, bass is kept tight at 4 and treble pushed to 7 to retain percussive funk bite. The SD-1 is left bypassed because adding it into the Crunch channel causes excessive clipping for the main riff.

PRO TIPFrusciante plays the iconic riff by aggressively strumming across all six strings while fretting only one note and muting the other five with his left hand — aggressive pick attack on the muted strings provides the distinct percussive snap.

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These settings are for a Boss Katana 50 MkII. ToneAdapt matches any song to whatever amp, guitar and pedals you own — first match is free.

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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.