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FAQ: Presets explained

First, let's clarify some terminology. I'm going to go ahead and make up these definitions, for simplicity.

Patch - a collection of effect settings that produce a particular sound, as well as controller assignments such as footswitch functions, LFOs, expression pedal, wah pedal range, etc.
Preset - in this case, means the same thing as patch; most users apply the two terms interchangeably
Bank - a group of several presets, usually related ones; on GNX units, this means five consequtive presets, numbered up to a multiple of 5 (presets 1 through 5 are bank 1; presets 6 through 10 are bank 2; etc)
Effect - a single row in the GNX matrix; each row allows different effects to be used in a preset; each can be individually toggled.
Mode - on GNX units, refers to the current function of the five controller footswitches and the two up/down footswitches

Let's go over the three available modes:

Bank mode - controller footswitches 1 through 5 activate an entire new preset; for example, in bank 2, FS 1 = preset 6; FS 2 = preset 7; FS3 = preset 8; and so on. Up/Down footswitches allow bank selection without changing current preset.
Stompbox mode - each controller footswitch either activates or deactivates, or changes an effect setting (GNX3 and 4 only). For example, on GNX3000 FS1 toggles amp channel; FS2 turns stompbox on/off; FS3 toggles modulation on/off; FS4 toggles delay on/off. Up/Down footswitches go up or down a single preset
Recorder mode - each footswitch is assigned to its recording function, allowing for hands-free recorder/looper operation (GNX3 and GNX4 only). This mode also allows drum machine to be turned on/off (GNX4 and GNX3000 only). Up/Down footswitches change drum pattern (GNX4 and GNX3000 only) or MP3 backing track (GNX4 only)

Finally, let's cover the available effects in each preset.

Pickup modeling
Wah pedal
Distortion pedal
Pre-amp Pitch effects
Amp model (two channels per preset) and warp settings
Noise gate
Modulation and post-amp pitch effects (chorus, flanger, phaser, envelope, etc)

These items in combination comprise the patch, and will determine the final sound of the preset.


  • iliaceiliace Posts: 5,567
    edited April 2008
    One of the most important aspects of GNX units is ease of sound selection in a live setting. Two options are available for this - bank mode or stompbox mode.

    Stompbox mode is a good starting point for beginners who wish to get to know their unit. It is also very powerful, especially on GNX3 and 4 where footswitches are user-assignable. The most basic usage for this mode is operating under the assumption that you will use the same amp models for each clean and distorted sounds. You will use stompbox to boost the mids and overall level for your solos, bring modulation and other ambient effects in and out, and so forth.

    The operation pattern is such:
    1. Audition and select two amp sounds.
    2. Edit a patch, placing the clean sound in Green channel, and the Distorted amp sound in the Red channel. This is covered in the manual in great detail.
    3. Choose AMP FS mode to toggle only between those two settings (either R-G or CH1-CH2, depending on GNX unit).
    4. Choose a stompbox and alter its settings to give you a good boost for the Red channel, as well as decent crunch sound on for the Green channel (if desired).
    5. Select a modulation effect that you plan to use most frequently - usually chorus or phaser.
    6. Select a delay model that works for your situation (e.g. mono or stereo, ducking or not, threshold and feedback settings, etc)
    7. Add reverb if desired.

    Now, you have a preset where each of the selected settings can be accessed with a single footswitch. So, you don't need to change the whole preset to turn modulation on/off - simply press the middle footswitch. N.B. GNX4 users may have to assign the middle footswitch to control the modulation parameter. Notice that by having three presets that you commonly use - mostly, when you need different amp models or effects - you are able to use your main preset, and have the other two accessible at the push of an up/down footswitch. So, if one of your song requires a flanger but all your other songs use chorus, all you have to do is save a copy of your main preset into one just above it, and change the new preset's modulation effect to flanger.

    For advanced stompbox mode usage and custom control assignments, check out these articles:


    Bank mode is suitable for users who are familiar with their presets and do not make many changes to them. This mode is ideal for GNX4 users who have custom banks on CF cards, for different situations. Two groups of users will find this mode particularly useful:
    * Bands that have long songs with many changes that require different effects, amp models, wah settings, etc
    * Cover bands that cover a variety of genres, again requiring numerous different amp models, effects, etc.

    In Bank Mode, the modus operandii is as follows:
    1. Create a set list for your performance.
    2. Make a chart listing each song in order, and the corresponding patch name and number. This step is optional, but very helpful.
    3. Group songs that use the same preset; determine what is different for each song's preset (there is no reason to have two identical presets for two songs).
    4. Arrange related presets into a bank. A good way to start is to take your first five patches and save them into User presets 1 through 5 - you might find that 5 is all you need.
  • iliaceiliace Posts: 5,567
    An additional helpful setting in Bank mode is Preset Bounceback, selectable under Utilities. When activated, this feature functionally makes your active patch footswitch an equivalent of the LAST button on your cable remote. By pressing the active footswitch again, you are taken to the next patch. This is particularly useful when you want to access a preset in a different bank: use up/down footswitches to choose the bank (the sound does not change until you make a selection), then select the preset when you find the correct bank. To go back to your last sound, simply press the footswitch again - no need to scroll through banks.

    Also, it is helpful to name banks, so that you can see which one is selected without having to count how many times you've pressed the up/down footswitches. This, too, is available under Utilities.

    All presets are automatically grouped into banks, based on the number under which they're saved. This means that you can take advantage of either usage mode, depending on how the situation lends itself.
  • KewlpackKewlpack Posts: 441
    Good info. I just linked to it over at TSB Forum. ;)
  • Thats a really good synopsis !!

    We would like to add two more definitions :

    Amp Model : This is a definition of an Amplifier. It helps the GNX3000/GNX4 emulate the pre-amp distortion, tone controls and Power Amp distortion stages.

    Patchess /presets automatically carry in them the definition of the chosen Amp Model.

    However new Amp models can be uploaded in ACM format

    Speaker Model : This is the definition of the frequency response of a Speaker.

    As with the Amp model, patches/presets carry information about the chosen Speaker Model. New definitions can be downloaded in ACM format.

    Thus, as Iliace put it, a patch/preset s a collection of information that defines a tone (= Amplifier definition + Speaker definition + settings of the Amp and Speaker + settings of the effects used)

    Line6 users can purchase new Amplifier and Speaker Models over and above the built -in set

    GNX users can use the built-in Amplifiers/Speaker definitions or use warp to create new Amplifier or Speaker models. However a warped model does not emulate any real Amplifier or Speaker. This is obvious as no real Amplifier is a mix of two other Amps !!
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