Tone library / Ozzy Osbourne / Perry Mason

Perry Mason amp settings — Marshall DSL100hr

The Ozzy Osbourne guitar tone for “Perry Mason”, dialed in for a Marshall DSL100hr with a Gibson Les Paul Modern. Studio version, Ozzmosis (1995)

Original rig

Gibson Les Paul Custom (EMG 81/85) into Boss SD-1 Super Overdrive pushing Marshall JCM800 2203 with Dunlop Wah and Boss CH-1 Chorus

Thick, aggressive high-gain British bite with punchy low-mids and sharp pinch harmonic cut
Amp settings — Marshall DSL100hr
CHANNELUltra Gain (OD1)BOOSToff
GAIN 7 BASS 7 MID 6 TREBLE 7 PRESENCE 6 REVERB 1 MASTER 4
KnobSetting (0–10)
Gain7
Bass7
Mid6
Treble7
Presence6
Reverb1
Master4
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Guitar
PICKUPbridge TONE10 VOLUME10
Signal chain

01Dunlop Crybaby From Hell Wah

Engage during the solo and expressive fills; set internal boost on if you want extra push into the amp input

Boost 6 · Q 7 · Fine Tune 5

02Overdrive (Boss SD-1 / TS-style)

RECOMMENDED — not owned (classic Zakk tight boost: Drive 0, Level 10 to tighten low end and juice harmonics)

Level 10 · Tone 6 · Drive 0
Why these settings

The DSL100HR's Ultra Gain OD1 channel delivers the cascaded Marshall preamp saturation of Zakk's cranked 2203. Since your Les Paul Modern has passive Burstbucker pickups instead of Zakk's hot, compressed active EMG 81, we run the amp gain at 7 with mids slightly pushed to preserve punch and pinch-harmonic squeal. Set the Resonance knob on your DSL100HR to 6 to dial in the heavy low-end thud of the dropped riff without flubbing out.

PRO TIPDig in hard using heavy 1.14mm+ picks and graze the string with the side of your thumb right after the pick strike over the bridge pickup sweet spot to trigger Zakk's trademark wide-vibrato pinch harmonics.

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These settings are for a Marshall DSL100hr. ToneAdapt matches any song to whatever amp, guitar and pedals you own — first match is free.

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