Tone library / Metallica / For Whom the Bell Tolls

For Whom the Bell Tolls amp settings — Boss Katana KTN-50 3

The Metallica guitar tone for “For Whom the Bell Tolls”, dialed in for a Boss Katana KTN-50 3 with a Yamaha Pacifica 112V. Studio version, Ride the Lightning (1984) - Main heavy rhythm riff

Original rig

1984 Gibson Explorer (Dirty Fingers humbuckers) / 1974 Gibson Flying V -> Ibanez TS9 Tube Screamer -> Marshall JCM800 2203 100W Head -> Marshall 1960B 4x12 Cab

Aggressive, mid-forward British crunch with tight low-end punch and biting high-mids
Amp settings — Boss Katana KTN-50 3
CHANNELBrown amp typeBOOSToff
GAIN 6 BASS 6 MID 6 TREBLE 7 REVERB 0 MASTER 5
KnobSetting (0–10)
Gain6
Bass6
Mid6
Treble7
Reverb0
Master5
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Guitar
PICKUPbridge TONE10 VOLUME10
Signal chain

01Boss SD-1 Super Overdrive

Used as a clean boost to tighten the low-end and add upper-mid bite into the amp

Level 8 · Tone 5 · Drive 1
Why these settings

The Katana 50 Gen 3's Brown amp type nails the modded Marshall JCM800 core voicing used on Ride the Lightning. The SD-1 pushes the front of the amp with low drive and high level, precisely replicating how Metallica used a TS9 to cut flubby bass and add attack before the preamp. Since your Pacifica bridge humbucker has moderate output compared to Hetfield's high-output Dirty Fingers, keeping the amp gain around 6 retains punch without turning muddy.

PRO TIPUse strict downpicking with heavy palm muting near the bridge saddles on the power chords to get that percussive, mechanical Metallica chug.

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These settings are for a Boss Katana KTN-50 3. ToneAdapt matches any song to whatever amp, guitar and pedals you own — first match is free.

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