Tone library / Ozzy Osbourne / Crazy train

Crazy train amp settings — Harley Benton HB-20R

The Ozzy Osbourne guitar tone for “Crazy train”, dialed in for a Harley Benton HB-20R with a Donner DST-550. Studio version, Blizzard of Ozz (1980) — main riff and lead

Original rig

1974 Gibson Les Paul Custom -> MXR Distortion+ -> MXR 10-Band Graphic EQ -> 1975 Marshall JMP 1959 Super Lead into 4x12 cabs with Altec 417-8H speakers

Aggressive, mid-forward British hard rock crunch with a distinctive 500Hz-1kHz bark and bright treble bite

Amp settings — Harley Benton HB-20R

CHANNELOverdrive (select button pushed in)

Knob	Setting (0–10)
Gain	7
Bass	5
Mid	8
Treble	7
Reverb	2
Master	4

Don’t have a Harley Benton HB-20R? See this song on other amps → Match your own rig →

Guitar

PICKUPbridge TONE10 VOLUME10

Signal chain

01MXR Distortion+

RECOMMENDED — not currently owned

Output 8 · Distortion 7

0210-Band Graphic EQ

RECOMMENDED — not currently owned

500Hz 8 · 1kHz 8 · Level 6

Why these settings

The HB-20R lacks presence and the sharp 800Hz-1kHz EQ spike of Randy's MXR pedals, so push the amp's Middle knob to 8 and Treble to 7 on the overdrive channel to simulate that forward bite. Keep Gain at 7 to capture the heavy crunch without turning the 8-inch speaker muddy; avoid pushing Bass past 5 to prevent flub. If you add an MXR Distortion+ down the road, switch the amp to the Clean channel with gain at 2.

PRO TIPRandy aggressively double-tracked the studio rhythm guitars and picked firmly near the bridge with heavy attack; pick right above the bridge saddles to get that signature sharp, metallic edge on the opening F#m riff.

Get this tone on your amp

These settings are for a Harley Benton HB-20R. ToneAdapt matches any song to whatever amp, guitar and pedals you own — first match is free.

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