The TWA Great Divide 2.0 is an analog synth octaver pedal from TWA (Totally Wycked Audio), distributed by Godlyke. It combines classic analog octave division with TWA's proprietary Synth technology, and its five independent voices can be continuously blended, moving from straightforward stompbox octave division to multi-layered synth sounds1. Premier Guitar reviewed it in August 2021 at a street price of $3992.
The five voices are synth, +1 octave, dry, -1 octave, and sub, each with its own illuminated level slider for setting the relative mix2. The pedal is 100% analog1, and it is a redesign rather than a fresh product: the Mk. II (2.0) is an overhaul of the original Great Divide, which Godlyke first announced in September 2013 as the GD-0234.
The five voices and how you control them
The core of the pedal is the set of five sliders. Premier Guitar's reviewer described the layout plainly: "Five illuminated sliders control the relative mix of the five voices (synth, +1 octave, dry, -1 octave, and sub)"2. A Dry Level fader sets the level of your untouched guitar or bass signal1.
Each generated voice has its own character and controls:
| Voice | What it does | Controls |
|---|---|---|
| SYN | Proprietary synth voice | Level slider, synth clock interval selector, waveform switch23 |
| +1 OCT | One octave up | Level slider, on/off envelope switch2 |
| DRY | Your original signal | Dry Level fader1 |
| -1 OCT | One octave down | Level slider, cross-modulation (added in Mk. II)1 |
| SUB | Sub octave | Level slider, LPF shut-off switch (added in Mk. II)1 |
The +1 octave voice is paired with an on/off envelope switch. Engaging it turns on a filter sweep that creates a funky envelope-follower "bow-bow-bow" sound each time a note is played2.
The synth voice has its own level slider, a "synth clock" interval selector with five positions (root, -1 octave, -1.5 octave, -2 octave, -2.6 octave), and a waveform selector2. The SYN waveform switch offers four options: Saw/Pulse, Chopped Saw/Pulse, Square, and Modulated Square3. Premier Guitar's reviewer listed the same four modes as chopped saw + pulse, saw + pulse, square, and modulated square2.
Expression, effects loop, and switching
An expression pedal can be connected to control the Great Divide's output level, which TWA suggests for synth pad volume swells1. The pedal also carries a TRS effects loop for patching in external effects, a feature carried over from the original GD-02 announcement4.
Bypass is handled by TWA's proprietary S3 "Shortest Send Switching," a form of relay-based true bypass3. The relay-based design has a practical safety feature: S3 switching automatically reverts the pedal to bypass mode if power is lost1.
The Great Divide requires external 9 VDC power and has no battery option4, so it needs a spot on a power supply from the start.
Mk. I versus Mk. II: what changed
The original Great Divide GD-02 was announced by Godlyke in September 2013, after over three years of development4. The 2.0 version arrived after a further overhaul that RockBoard's PedalPedia describes in unusually candid terms: "Three years, two cease & desist letters, one trip to Buffalo, tens of thousands of dollars, two redesigns and a few nervous breakdowns"5.
The Mk. II changes run in both directions. Some features were removed:
- The custom chassis, replaced by a standard Hammond-style box that TWA says is easy to come by and not so pricey1
- The Mk. I's preset toggle function1
And some were added:
- A dedicated clock for the SYN voice, with 0, -1, -1.5, -2, and -2.6 octave options1
- Cross-modulation for the -1 octave voice1
- An LPF shut-off switch for the SUB voice1
Premier Guitar's review noted the price came down alongside the streamlining: the 2.0 version sells for half of the original $800 and is "considerably more streamlined and easy to use"2.
What reviewers said
Premier Guitar reviewed the Great Divide 2.0 in August 2021. The reviewer's verdict on tracking was positive2:
"The Great Divide tracks especially well in high and low registers, making it a very forgiving and musical pedal."2
Premier Guitar, August 20212
That tracking performance matters for an analog octaver, since analog octave division historically demands clean, single-note playing. The reviewer found the Great Divide forgiving even through fretless bass bends2.
Where it sits among synth pedals
Godlyke's current listings for the Great Divide 2.0 and Mk. II are B-stock units and are sold out as of October 202613. The B-stock listings note that pedals may show signs of use and minor cosmetic damage, and boxes show some wear13.
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Questions
Is the TWA Great Divide 2.0 fully analog?
Yes. TWA describes the Great Divide as 100% analog. It combines classic analog octave division with the company's proprietary Synth technology, and all five voices are produced and blended in the analog domain rather than converted digitally.
Is the Great Divide 2.0 true bypass?
Yes. It uses TWA's proprietary S3 Shortest Send Switching, a form of relay-based true bypass. The relay also automatically reverts the pedal to bypass mode if power is lost, so a dead power supply will not silence your signal chain.
What is the difference between the Great Divide Mk. I and Mk. II?
The Mk. II dropped the Mk. I's custom chassis and preset toggle function, moving to a standard Hammond-style enclosure. It added a dedicated clock for the SYN voice with interval options, cross-modulation for the -1 octave voice, and an LPF shut-off switch for the SUB voice.
Can you use an expression pedal with the Great Divide 2.0?
Yes. An expression pedal can be connected to control the pedal's output level, which TWA suggests for synth pad volume swells. The pedal also has a TRS effects loop for patching in external effects.
What waveforms does the Great Divide synth voice offer?
The SYN voice has a waveform switch with four options: saw/pulse, chopped saw/pulse, square, and modulated square. A synth clock selector sets the interval the synth voice tracks at: root, -1 octave, -1.5 octave, -2 octave, or -2.6 octave.
How big is the Great Divide 2.0?
The pedal measures 5.75 inches long by 4.75 inches wide by 2 inches tall. It sits in a standard Hammond-style enclosure, which TWA chose partly because it is easy to source and inexpensive compared with the Mk. I's custom chassis.
Sources (5)
- TWA Great Divide 2.0 analog synth octaver (B-STOCK), Godlyke Distributing, Inc.
- TWA Great Divide 2.0 Analog Synth Octaver Review, Premier Guitar, 2013-11-17
- TWA Great Divide Mk. II analog synth octaver (B-STOCK), Godlyke Distributing, Inc.
- TWA GD-02 Great Divide Synth Octave Pedal Released, Premier Guitar, 2013-09-11
- Great Divide 2.0 by Totally Wycked Audio, RockBoard PedalPedia, 2026
