GRAMMA – Line 6 Helix Patch


Line 6 Helix patch based on the Grammatico LaGrange amp model, including two premium Tone Junkie IR cabs. Includes multiple drive, delay, reverb, and modulation options.

There are three patches included: one voiced for single coils, one for humbuckers, and one with a stock Helix cab.



1. UPDATE YOUR FIRMWARE: Please upgrade the firmware on your Helix and the HX Edit software from Line 6 to the latest before installing this patch. Even if your Helix is up to date, the ‘HX Edit’ app needs to be updated as well. If you get an error importing a patch, the problem is most likely outdated firmware on your Helix/HX Edit.

2. IR CAB INCLUDED: This download includes a premium IR’s from Tone Junkie. We’ve also included a stock cab version of the patch, but we urge to try the IR – it really does sound better – and it’s included for free :).

Here are the specific IR’s included, and their locations in our Helix:

    • Jen P12Q 121+57 2. TOP ROW
    • Jen P12Q Fat+57 2. BOTTOM ROW
    • With Firmware 2.90, Helix should recall the IR based on its name rather than slot number, so it shouldn’t matter which slot you import the IR into. To purchase more IR packs, visit the Tone Junkie store.


This download includes three patches as well as the IR cabs. The patches are:

  • GRAMMA WT IR – This patch uses the IR cabs and is meant for guitars with single coils or low output humbuckers
  • GRAMMA WT HB – This patch uses the IR cabs and is meant for guitars with more traditionally voiced humbuckers
  • GRAMMA WT – This patch uses stock Helix cabs rather than IR’s (uses the single coil settings)


  1. Connect your Helix to your computer using a USB Cable
  2. Download and instal the ‘HX Edit’ app from Line 6
  3. In the ‘HX Edit’ app, drag and drop the patch into a slot in the ‘PRESETS’ column
  4. To import an IR, switch to the ‘IMPULSES’ column (next to the PRESETS column), and drag & drop the IR into the an open slot.
  5. PLEASE NOTE: If you do not have the IR loaded into the ‘IMPULSES’ column, the patch will not sound correct, even if you have the IR block on – you must drag and drop the IR into the IMPULSES column.


  1. Input
  2. Deluxe Comp – not mapped to a switch, always on
  3. Heir Apparent – Prince of Tone (voiced to sound like Bradford’s KOT, Yellow side) – mapped to switch labeled ‘KOT Yellow’
  4. Teemah! – Timmy OD — mapped to a switch labeled “Teemah!”
  5. Heir Apparent – Prince of Tone (voiced to sound like Bradford’s KOT, Red side) – mapped to switch labeled ‘KOT Red’
  6. Volume – mapped to EXP 2
  7. Ubiquitous Vibe – mapped to switch labeled ‘U Vibe’
  8. Amp – Grammatico Jump
  9. Cabs/IR – see above for IR info
  10. Cali Q Graphic – Always on EQ – Use this EQ to make tonal tweaks for your guitar/setup. These controls will affect your tone differently than the amp controls.
  11. Chorus – not mapped to a switch – used in Snapshots
  12. Tremolo – mapped to a switch labeled ‘Tremolo’
  13. Transistor Tape Delay – 1/4 Note Delay – mapped to switch labeled ‘1/4 DLY’
  14. Transistor Tape Delay – dotted 8th Delay- mapped to switch labeled  ‘1/8d DLY’
  15. Dual Delay –  1/8 + Dotted 8th— mapped to switch labeled  ‘Dual ST DLY’
  16. Plate Verb – mapped to a switch labeled ‘Short Verb’
  17. Glitz Verb – ambient reverb – mapped to switch labeled ‘Big Verb’
  18. Glitz Verb – ambient reverb (bigger) – used for the ‘Swells’ snapshot


This patch is meant to be used in either stompbox or snapshot mode. We recommend setting up your Helix to use all ten stomps (stompbox mode) or all eight snapshots (snapshot mode). The Helix LT does not allow 10-button stomp mode, so you’ll have to re-arrange the button assignments to suite your preferences.


Everything after the amp block (all the wet effects and the EQ) is in stereo. If you only use the L/Mono output of the Helix, everything will be summed to mono automatically.

NOTE: If you run mono, turn the ‘Spread’ parameter down to zero in the Tremolo block. Otherwise the effect will be much more subtle


Feel free to stack drive pedals for bigger sounds. Using all three drive pedals at once might get a bit mushy, though.


There are eight snapshots included in this patch to get different sounds (all patches feature the same snapshots).

They are:

  • Snapshot 1: CLEAN. Clean tone with light reverb and delay
  • Snapshot 2: DRIVE. Light overdrive.
  • Snapshot 3: DRIVE+: Bigger overdrive (including the amp gain switch).
  • Snapshot 4: P&W LEAD. Big drive and delay/verb
  • Snapshot 5: CLEAN AMBI: Ambient clean tone big delay and reverb
  • Snapshot 6: TREM CLEAN: Clean tone with tremolo
  • Snapshot 7:CHOR CLEAN: Clean tone with chorus
  • Snapshot 8: SWELLS: Big delay and verb.



All guitars are different, so you may want to make changes to suite your playing style and guitar. We set this up with a variety of guitars, including both single coils and humbuckers (primarily a Telecaster style guitar). If your guitar has humbuckers, please refer to the suggested settings below.

We recommend making a copy of the patch and changing the copy just in case you want to revert back to the original.

We’ve included both single coil and humbucker voiced patches to serve as starting points for your guitars. To make adjustments, we recommend starting with these parameters:

  • Amp Gain: Adjust the min/max values of the amp gain so that your guitar is slightly breaking up with big chords on the bridge position (without any drive pedals on)
  • Amp EQ controls: Adjust these to suite your individual guitars/taste
  • Cali Q Graphic EQ block: This is a simple way to adjust the overall tonal characteristics of the patch.


If you would like to make this patch louder or quieter without affecting tone, the following adjustments can be made:

“Ch Vol” control on the amp module. This will increase or decrease volume without affecting the tone of the amp. This is the primary level adjustment tool I use for changing patch volumes.

Output block level. Changing the level control on the output block (the very last thing in the signal chain) will increase or decrease overall volume. We typically have this set at zero, but feel free to adjust this as you see fit.


Initial Release (1.0): 2020-09-07


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