Eruption amp settings — Marshall Code 50

The Van Halen guitar tone for “Eruption”, dialed in for a Marshall Code 50 with a Epiphone Les Paul Classic. Studio version, Van Halen (1978) — iconic solo piece

Original rig

1968 Marshall Super Lead 100W (variac-lowered voltage), Frankenstrat (bridge PAF humbucker), MXR Phase 90, Univox EC-80 Tape Echo, Sunset Sound EMT 140 plate reverb

Classic Brown Sound — harmonically saturated, mid-heavy crunch with smooth top-end and slow phase sweep

Amp settings — Marshall Code 50

CHANNELPlexi (1959SLP) Preamp + 100W Tube Power Amp + 1960V 4x12 CabBRIGHToffBOOSToff

Knob	Setting (0–10)
Gain	7
Bass	5
Mid	8
Treble	6
Presence	6
Reverb	4
Master	6

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Guitar

PICKUPbridge TONE10 VOLUME10

Signal chain

01Boss OD-3 OverDrive

BOOST — pushes the Plexi model into saturated harmonic feedback while tightening low-end

Drive 2 · Tone 5 · Level 8

02Marshall Code Onboard Modulation (Phaser Block)

Onboard FX block replicating Eddie's script MXR Phase 90 running pre-gain

Speed 3 · Depth 7

03Marshall Code Onboard Delay (Vintage Tape Block)

Onboard FX block set to ~310ms mimicking the Univox EC-80 Echomixer

Time 3 · Feedback 3 · Level 4

Why these settings

The Marshall Code 50's 1959SLP Plexi model provides the core Brown Sound foundation, pushed by your OD-3 set as a clean boost (Drive low, Level high) to emulate power-amp saturation. We compensate for your Les Paul's warm mahogany body by pushing mids to 8 and treble to 6 to replicate Eddie's bright ash-body Frankenstrat cut. Code onboard Phaser and Tape Delay blocks handle the classic pre-amp phase sweep and tape echo without requiring external pedals.

PRO TIPEddie ran the Phase 90 in front of the cranked Marshall rather than in an effects loop, which causes the phase sweep to dynamically modulate the preamp gain saturation—keep the onboard phaser block placed before the preamp model in the Code signal chain.

Get this tone on your amp

These settings are for a Marshall Code 50. ToneAdapt matches any song to whatever amp, guitar and pedals you own — first match is free.

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Marshall Code 50 settingsALL SONGS FOR THIS AMP Eruption on other ampsSAME SONG, YOUR AMP Van Halen tonesALL SONGS Van Halen on the Marshall Code 50SAME ARTIST, SAME AMP Epiphone Les Paul Classic tonesSAME GUITAR Tone libraryEVERYTHING

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