Tone library / Ozzy Osbourne / Crazy Train

Crazy Train amp settings — Marshall JVM410H

The Ozzy Osbourne guitar tone for “Crazy Train”, dialed in for a Marshall JVM410H with a Gibson Les Paul Classic. Studio version, Blizzard of Ozz (1980) - iconic main riff & rhythm tone

Original rig

1974 Gibson Les Paul Custom (bridge pickup) -> MXR Distortion + -> MXR 10-Band Graphic EQ (heavy 500Hz boost) -> mid-70s Marshall JMP 1959 Super Lead MKII 100W head into 4x12 cabs with Altec 417-8H speakers

Aggressive, mid-forward buzzsaw hard-rock crunch with bright upper harmonics and a tight low end

Amp settings — Marshall JVM410H

CHANNELCrunch Channel (Red Mode)BOOSToff

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

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Guitar

PICKUPbridge TONE10 VOLUME10

Signal chain

01Boss SD-1 Super Overdrive

Used as a tight boost in front of the amp to push upper-mids and replicate the MXR Distortion+ and EQ push

Drive 3 · Tone 7 · Level 8

Why these settings

The JVM410H Crunch Red channel accurately captures the modified vintage Marshall JMP character without over-saturating into modern high-gain. Running the SD-1 with low drive and high level into this channel recreates the tight, mid-focused front-end push of Randy's MXR Distortion+ and 10-band EQ without flubby bass. The Resonance control on your JVM should be set low (around 3-4) to emulate the tight, non-boomy response of the Altec 417-8H speakers.

PRO TIPPick forcefully near the bridge with a stiff pick to produce Randy's sharp, metallic transient attack and make the harmonic overtones pop on the main F#m riff.

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