Trash amp settings — Boss Katana 50 MkII

The Korn guitar tone for “Trash”, dialed in for a Boss Katana 50 MkII with a Ibanez RG550. Studio version, Issues (1999)

Original rig

Mesa/Boogie Dual Rectifier (Modern High-Gain channel, mids scooped), Ibanez 7-string with DiMarzio Blaze pickups, Ibanez BC-9 chorus, flanger/phaser for intro/chorus texture, ISP Decimator noise gate

Scooped mid nu-metal chunk with boomy lows, fizzy highs, and percussive attack on detuned riffs

Amp settings — Boss Katana 50 MkII

CHANNELBrown amp typeBRIGHToffBOOSToff

Knob	Setting (0–10)
Gain	8
Bass	7
Mid	2
Treble	7
Presence	6
Reverb	0
Master	5

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Guitar

PICKUPbridge TONE7 VOLUME10

Signal chain

01POD GO - Noise Gate block

Essential for high-gain detuned playing; place first in chain

Threshold 6 · Decay 3

02POD GO - Chorus block (CE Chorus or 70s Chorus model)

Used on clean verse sections; bypass for heavy riffs

Speed 3 · Depth 5 · Mix 4

03POD GO - Phaser block (Script Mod Phase)

Slow sweep on intro/chorus distorted riffs for swirling texture; combine with distortion

Speed 2 · Depth 5 · Mix 5

Why these settings

The Katana's Brown amp type emulates the tight Marshall-style crunch but needs scooped mids (set to 2) to approximate the Rectifier's nu-metal voice. Bass pushed to 7 captures the boomy low-end thump; presence at 6 adds the fizzy top-end bite without becoming harsh. Your RG550's humbuckers are slightly hotter than the original DiMarzio Blaze pickups, so gain stays at 8 rather than maxed.

PRO TIPKorn's percussive muted scratching technique requires you to lightly rest your fretting hand across the strings and attack aggressively with the pick—the tone won't sound right without this playing style. Roll your tone knob to 7 to tame any ice-pick frequencies on the low strings.

Get this tone on your amp

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.