Tone library / Metallica / For Whom the Bell Tolls

For Whom the Bell Tolls amp settings — Ampeg Rocket Bass RB-108

The Metallica guitar tone for “For Whom the Bell Tolls”, dialed in for a Ampeg Rocket Bass RB-108 with a Music Man StingRay Ray5. Studio version, Ride the Lightning (1984) - Intro lead bass riff

Original rig

Modified Rickenbacker 4001 / Aria Pro II SB-1000 into Morley Power Wah Boost, Electro-Harmonix Big Muff Pi, and Mesa Boogie D-180 head with Mesa 4x12 and 1x15 cabs

Aggressive, mid-forward fuzz/distortion lead bass with upper-harmonic grind and wah-sweep vocal bite
Amp settings — Ampeg Rocket Bass RB-108
BOOSToff
BASS 4 MID 8 TREBLE 7 MASTER 6
KnobSetting (0–10)
Bass4
Mid8
Treble7
Master6
Don’t have a Ampeg Rocket Bass RB-108? See this song on other amps → Match your own rig →
Guitar
PICKUPbridge TONE8 VOLUME10
Signal chain

01Behringer BOD400 Bass Overdrive

Owned dirt pedal acting as main gain source; SGT circuit on amp remains off to prevent muddy double-distortion

Level 7 · High 6 · Low 5 · Drive 8 · Bal 8

02Electro-Harmonix Bass Big Muff Pi

RECOMMENDED — not currently owned

Volume 7 · Tone 6 · Sustain 8

03Morley Power Wah Boost

RECOMMENDED — not currently owned; park halfway open for the intro's vocal lead bite

Wah Level 7
Why these settings

The RB-108 has an 8-inch speaker and a 3-band EQ, so mid is pushed to 8 and bass trimmed to 4 to prevent low-end flub while capturing Cliff's mid-forward snarl. With your active StingRay pickup running hot into the BOD400, keep the pedal's Bal knob at 8 to push aggressive overdrive while preserving just enough clean fundamental. Leave the RB-108's Super Grit Technology (SGT) drive switch disengaged to honor the double-gain rule and keep the pedal's fuzz-style breakup articulate. For the clean backing bass under the verses, bypass the BOD400.

PRO TIPCliff played exclusively with his fingers, striking hard right over the bridge pickup with dynamic index-middle alternating attacks and aggressive vibrato on the sustained double-stops.

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These settings are for a Ampeg Rocket Bass RB-108. ToneAdapt matches any song to whatever amp, guitar and pedals you own — first match is free.

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