Tone library / megadeth / rust in peace polaris

rust in peace polaris amp settings — Boss Katana 50 MkII

The megadeth guitar tone for “rust in peace polaris”, dialed in for a Boss Katana 50 MkII with a Jackson JS32 Dinky. Studio version, Rust in Peace (1990) — Marty Friedman and Dave Mustaine tracking with Jose-modded Marshalls

Original rig

Marshall JCM800 2203 (Jose Arredondo mod), Jackson King V with Seymour Duncan JB, Boss SD-1 Super Overdrive as boost, TC Electronic 2290 delay

Tight, aggressive thrash with scooped mids, razor-sharp pick attack, and controlled low-end — the Jose mod added gain and tightened the response

Amp settings — Boss Katana 50 MkII

CHANNELBrown (JCM800 voicing)BRIGHToffBOOSTon

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

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Guitar

PICKUPbridge TONE8 VOLUME10

Signal chain

01M-Vave Black Box (used as SD-1 style boost)

Run into amp input — set for low gain, high output to push the Brown channel's preamp and tighten low-end

Gain/Drive 3 · Tone 6 · Level 7

Why these settings

The Katana's Brown channel nails the JCM800 foundation. Mid at 4 (not 5) replicates the slight scoop Mustaine dialed in, while treble at 7 and presence at 6 deliver the pick attack. Your Jackson JS32 with its high-output humbucker is period-correct — the JB in Mustaine's King V had similar output and voicing.

PRO TIPMustaine's picking hand is the real secret — he anchors near the bridge and uses extremely tight, controlled downstrokes with the pick angled slightly. Practice the spider chord riff with all downstrokes, muting aggressively between hits. The tone comes from the attack, not the gain.

Get this tone on your amp

These settings are for a Boss Katana 50 MkII. 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.