Breed by Nirvana (Distorted · Distorted) — Guitar Tone

The Breed by Nirvana guitar tone is built on a Ampeg SVT, dialed in at gain 7/10, bass 6, mid 6, treble 6, presence 6 (community-researched baseline). Full breakdown below — then adapt every knob to your exact guitar and amp, free.

Amp settings (0–10)

Community-researched baseline. Your rig is different — GuitarToneAdapt re-dials every knob for your specific guitar, amp and pickups.

How these settings compare

Measured against the 540 rock tones in our researched catalog: Gain 7 sits well above the rock average (4.8) — a hotter, more saturated take than most rock tones; mids at 6 are right around average (6.2).

Original gear

Amp: Ampeg SVT (likely SVT-II or SVT Classic, era-correct for Nevermind sessions) · Strings: Roundwound (typical for Krist, but not explicitly confirmed for this session) · Tuning: Standard E

Studio recording, Nevermind album, 1991. Krist Novoselic used the Gibson RD Artist Bass and Ampeg SVT for both studio and live performances of 'Breed'.

Gear used on this tone

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Pickups

Both pickups balanced

Effects / signal chain

Gibson RD Artist Bass → Pro Co RAT 2 → Ampeg SVT (amp-mic'd, possible DI blend in studio)

Amp effects: Overdrive (level 7)

Tone character

aggressive pick attack, gritty, saturated overdrive, mid-scooped, punchy lows, clanky upper mids, fuzzy, compressed sustain, cutting through dense guitars, raw, punk-inspired drive, slightly metallic edge, notably present in the mix

Recording context

studio

How it’s played

straight, fast tempo, aggressive dynamics. This shapes how hard the amp is pushed and where the EQ sits for the Breed sound.

Difficulty

2/5 · Distorted

The part is fast and requires tight, aggressive pick playing, but is rhythmically straightforward and repetitive, making it accessible for intermediate players.

Worth knowing

• Exact amp EQ settings not found; estimated from Ampeg SVT norms, Krist's style, and forum consensus.
• No direct evidence of compression pedal or DI box; compression level inferred from era and mix.
• String type and pickup blend not explicitly confirmed for this session.
• Settings merged 75% AI / 25% web research. Krist Novoselic used a Gibson Ripper (passive) with a pick, through an overdriven Ampeg SVT or similar amp for 'Breed.' The 1991 grunge production favored aggressive, gritty bass with midrange punch, moderate bass, and clear treble to cut through distorted guitars. Compression was light, and the tone is amp-mic'd with some DI blend. The pick attack and era demand clear drive and forward mids.

Breed guitar tone — FAQ

Share this tone

Sources

• Nirvana – Live At The Paramount - Gear & Equipment Used on the Album | Equipboard
• Krist Novoselic (Of Nirvana) Bass Tone - Reddit
• Recreating the bass tone of 'Breed' by Nirvana - Reddit

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