Tone library / Judas Priest / Breaking the Law

Breaking the Law amp settings — Marshall Mg 50 mfx

The Judas Priest guitar tone for “Breaking the Law”, dialed in for a Marshall Mg 50 mfx with a Jackson Js32t king v. Studio version, British Steel (1980)

Original rig

Gibson Flying V (KK Downing) / modified Fender Stratocaster with Super Distortion (Glenn Tipton) → Marshall JCM800 2203 / 1959 Super Lead, bridge humbuckers, no pedals, dual-tracked hard-panned

Tight, aggressive mid-forward crunch with razor-sharp attack and British grind — palm-muted power chords with cutting upper-mid bite

Amp settings — Marshall Mg 50 mfx

CHANNELOD1BOOSToff

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

Don’t have a Marshall Mg 50 mfx? See this song on other amps → Match your own rig →

Guitar

PICKUPbridge TONE10 VOLUME10

Why these settings

The MG50 MFX OD1 channel approximates the JCM800 grind but with a tighter, more solid-state voicing. Pulled presence down 1 from the original 7 to avoid fizz — the MG's presence circuit gets harsh faster than a tube Marshall. Your Jackson's high-output humbuckers match the EMG-era Priest output closely, so gain stays at 7 where the original sat.

PRO TIPThe iconic riff punch comes from tight downstroke palm-mutes with the pick angled slightly — strike closer to the bridge and mute firmly against the saddles for that percussive 'chug' without flubby low-end.

Get this tone on your amp

These settings are for a Marshall Mg 50 mfx. 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.