Square Hammer amp settings — Boss Katana 50 MkII

The Ghost guitar tone for “Square Hammer”, dialed in for a Boss Katana 50 MkII with a Ibanez RGA42EX. Studio version, Popestar EP (2016) - Main intro riff and rhythm

Original rig

Gibson RD Artist / Hagstrom Fantomen / Gibson SG into blended Marshall JCM800 and Orange Rockerverb tube heads

Punchy British crunch with tight low-end, forward upper-mids, and bright articulation

Amp settings — Boss Katana 50 MkII

CHANNELCrunch amp typeBOOSToff

Knob	Setting (0–10)
Gain	7
Bass	5
Mid	7
Treble	6
Reverb	2
Master	5

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Guitar

PICKUPbridge TONE10 VOLUME10

Signal chain

01Built-in Booster (Tube Screamer / T-Scream model)

Engage the Katana onboard green Booster to tighten the low end

Drive 0 · Tone 5 · Level 7

Why these settings

The Katana Crunch voice captures the JCM800/Orange British crunch core without getting excessively fizzy. Mids are boosted to 7 to deliver the aggressive upper-mid push of the main riff, while the Katana 50 faceplate lacks a presence knob so presence is omitted. The onboard TS booster cuts sub-bass flub and sharpens attack on the Quantum passive humbuckers.

PRO TIPPick with a firm, downward-angled heavy pick attack right near the bridge to maximize the percussive, synth-like bite on the open D-string pedal notes.

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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