Tone library / Nirvana / Sappy

Sappy amp settings — Marshall MG15G

The Nirvana guitar tone for “Sappy”, dialed in for a Marshall MG15G with a Les paul SGR Solo‑II. Studio version, No Alternative hidden track (1993) — cleaner, melodic Nirvana tone

Original rig

Fender Twin Reverb (clean) / Mesa Boogie Studio Preamp (driven), Univox Hi-Flyer or Fender Mustang with humbuckers, Boss DS-1/DS-2, EH Small Clone chorus

Mid-gain grunge crunch with gritty edge, not full saturation — melodic and raw
Amp settings — Marshall MG15G
CHANNELOD (Overdrive channel)
GAIN 4 BASS 6 MID 8 TREBLE 5 PRESENCE 0 REVERB 0 MASTER 5
KnobSetting (0–10)
Gain4
Bass6
Mid8
Treble5
Presence0
Reverb0
Master5
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Guitar
PICKUPbridge TONE7 VOLUME10
Signal chain

01Blackstar LT Metal

Use as a gritty boost, NOT full metal saturation. Cobain's DS-1 was set with moderate gain to slam the front of his amp. Keep gain LOW — this is grunge crunch, not djent. Run into amp's CLEAN channel if you want tighter response, but OD channel at low gain works here.

Gain 3 · Level 7 · Bass 4 · Treble 5
Why these settings

Your MG15G is a solid-state Marshall with scooped, modern voicing — Cobain's tone was mid-heavy and raw, so I've pushed mids to 8 to compensate. The LT Metal is a high-gain pedal, but Cobain's DS-1 was used at moderate gain for grit, not saturation — keep your gain at 3 max. Your Les Paul's humbuckers are hotter than Cobain's Univox/Mustang pickups, so the lower pedal gain balances output.

PRO TIPRoll your guitar's tone knob to 7 to tame the Les Paul's brightness and get closer to Cobain's slightly woolly, nasal midrange — he rarely ran tone wide open. Pick closer to the neck for that loose, sloppy grunge attack.

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These settings are for a Marshall MG15G. ToneAdapt matches any song to whatever amp, guitar and pedals you own — first match is free.

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