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Line 6 Helix Floor / LT / Rack settings

Heart-Shaped Box settings for Line 6 Helix Floor / LT / Rack

Nirvana · adapted 20 times on ToneAdapt

To get the Nirvana "Heart-Shaped Box" riff tone on a Line 6 Helix Floor / LT / Rack, use the US Double Nrm (Fender Twin Reverb, normal channel) amp model on the clean channel, then set Drive 6, Master 7, Bass 6, Mid 7, Treble 6, Presence 5. Use the bridge pickup with your guitar's tone on 7-8 and volume on 8-9.

Riff settings

Adapted for a Epiphone Les Paul 100 · updated 2026-10-18

Amp model
US Double Nrm (Fender Twin Reverb, normal channel)
Channel
Clean
Cab
Open back cabinet with 2x12 speakers
Pickup
Bridge pickup
Guitar knobs
Tone 7-8 · Volume 8-9

Amp block

Drive
6
Master
7
Bass
6
Mid
7
Treble
6
Presence
5

Effects chain

  1. 1distortionDeez One Mod (Boss DS-1, Keeley mod)Tone 5 · Level 7 · Distortion 6
  2. 2reverbHot SpringsMix 3 · Decay 4
  3. 3noise gateNoise Gate (Line 6 Original)Release 5 · Threshold 4

Playing tips

  • Focus on tight palm muting for chugging riffs.
  • Use a percussive attack to enhance the gritty edge.
  • Experiment with picking dynamics to achieve a punchy sound.

The original rig

What Nirvana used on the recording, for reference. ToneAdapt translates this to the controls your Line 6 Helix Floor / LT / Rack actually has.

Guitar
Fender Jaguar (early 1960s, modified with DiMarzio Super Distortion bridge pickup and black Seymour Duncan Hot Rails neck pickup)
Amp
Fender Twin Reverb (Silverface, late 1970s)
Gain
6.5
Bass
6
Mid
7
Treble
6
Presence
5
Reverb
2
Full Heart-Shaped Box tone breakdown, effects and sources →

Different guitar or pedals? Get Heart-Shaped Box adapted to your exact rig

These settings were generated for the gear named above. ToneAdapt adapts Nirvana's tone to your own guitar, pickups, amp and pedals in seconds.

Frequently asked questions

What amp model should I use on the Line 6 Helix Floor / LT / Rack for Heart-Shaped Box?

Use the US Double Nrm (Fender Twin Reverb, normal channel) (clean channel) with Drive 6, Master 7, Bass 6, Mid 7, Treble 6, Presence 5, followed by Deez One Mod (Boss DS-1, Keeley mod), Hot Springs, Noise Gate (Line 6 Original).

Which pickup should I use for Heart-Shaped Box?

Bridge pickup, with the guitar's tone at 7-8 and volume at 8-9.

What gear did Nirvana use on Heart-Shaped Box?

Guitar: Fender Jaguar (early 1960s, modified with DiMarzio Super Distortion bridge pickup and black Seymour Duncan Hot Rails neck pickup). Amp: Fender Twin Reverb (Silverface, late 1970s).

Will these settings work with my guitar?

These settings were adapted for a Epiphone Les Paul 100. Different pickups change how much gain and treble you need. ToneAdapt adapts the tone to your exact guitar, pickups, amp and pedals.

Popular songs on the Line 6 Helix Floor / LT / Rack

All 86 songs for the Line 6 Helix Floor / LT / Rack →

Settings are generated by ToneAdapt's tone adaptation for the gear named on this page and are a starting point — every amp, guitar and room is a little different.