walk amp settings — Rockville G-AMP 20

The pantera guitar tone for “walk”, dialed in for a Rockville G-AMP 20 with a Ibanez RGA42FM. Studio version, Vulgar Display of Power (1992)

Original rig

Dean ML with Bill Lawrence L-500XL bridge pickup → MXR 6 Band EQ (V-curve scoop) → Furman PQ-4 Parametric EQ → Rocktron Guitar Silencer → Randall RG100ES solid-state head → Randall 4x12 cabinet with Celestion G12T-75 speakers. Tuned to D standard, quarter-step flat.

Tight, surgical, aggressive groove metal with scooped mids, razor-sharp pick attack, and massive low-end chunk

Amp settings — Rockville G-AMP 20

CHANNELOverdrive/Distortion (high-gain channel if available)

Knob	Setting (0–10)
Gain	8
Bass	6
Mid	3
Treble	7
Reverb	0
Master	5

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Guitar

PICKUPbridge TONE10 VOLUME10

Signal chain

01Boss GE-7 or MXR 6-Band EQ

RECOMMENDED — not currently owned. Creates the signature V-curve scoop essential to Dimebag's tone. Boost lows and highs, cut mids around 400-800Hz.

100Hz 7 · 200Hz 5 · 400Hz 3 · 800Hz 2 · 1.6kHz 3 · 3.2kHz 6 · Level 6

Why these settings

The Rockville G-AMP 20 is an unrecognized budget solid-state practice amp — knob names may differ on your faceplate. The original Randall RG100ES was solid-state with surgical transient response, so your amp's architecture is actually appropriate for this tone. However, small practice amps lack the tight low-end control of the Randall, so keep bass conservative at 6 rather than pushing higher. The critical missing element is the graphic EQ that shaped Dimebag's scooped V-curve — without it, the tone will be flatter and less aggressive. Presence is set to null as this amp likely lacks that control.

PRO TIPDimebag's attack came from his picking hand — dig in hard with the pick angled slightly, right near the bridge, and palm-mute TIGHT against the saddles. The Randall's solid-state clarity exposed every nuance of his right hand technique. Tune to D standard (D-G-C-F-A-D) to match the original — this riff loses its weight in standard tuning.

Get this tone on your amp

These settings are for a Rockville G-AMP 20. ToneAdapt matches any song to whatever amp, guitar and pedals you own — first match is free.

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