Tone library / Ozzy Osbourne / Crazy Train

Crazy Train amp settings — Marshall MG30FX

The Ozzy Osbourne guitar tone for “Crazy Train”, dialed in for a Marshall MG30FX with a Dean ML 79 floyd. 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 -> Marshall JMP 1959 Super Lead 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 MG30FX

CHANNELCleanBOOSToff

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

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Guitar

PICKUPbridge TONE10 VOLUME10

Signal chain

01Boss OS-2 OverDrive/Distortion

Set Color knob heavily toward DS (Distortion) to emulate the MXR Distortion + clipping profile

Level 7 · Tone 7 · Drive 8 · Color 9

02MXR 6-Band EQ

Provides the signature Randy Rhoads pre-amp midrange push across 400Hz-800Hz

100Hz 4 · 200Hz 5 · 400Hz 8 · 800Hz 8 · 1.6kHz 7 · 3.2kHz 6

Why these settings

Because the Boss OS-2 provides the core Distortion + clipping into the MXR 6-Band EQ, the Marshall MG30FX is set to its Clean channel with low preamp gain to avoid muddy double-gain stacking. The MXR EQ pushes the 400Hz-800Hz mid frequencies to replicate the aggressive upper-mid bite Randy achieved with his 10-band EQ into Altec speakers. Marshall MG30FX has no dedicated presence knob, so upper sizzle is dialed via the amp treble and pedal tone controls.

PRO TIPRandy doubled (and tripled) his rhythm tracks with extreme precision in the studio to create that wide, cutting buzzsaw texture; pick aggressively near the bridge with the edge of a heavy pick to maximize the upper-mid harmonic crunch.

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These settings are for a Marshall MG30FX. 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.