Enhance your copy of Zebra 2 with TETRALOGY, a comprehensive collection of over 350 highly-usable synth sounds! This inspiring set of presets covers all the bases from virtual analog poly synths to cutting FM basses, arpeggios and plucked sounds to sweeps and gates, sound effects, percussion, and much MUCH more. Every sound is prepared with X/Y control for instant inspiration and easy variation.




Audio Demos

  1. Light As Air (Dressed) Brad Jerkins 2:50
  2. Z-Squared (Naked) Andrew Aversa 1:35
  3. World's Most Wanted Wiener (Dressed) Jake Kaufman 4:28
  4. Jazzed House (Dressed) Andrew Aversa 0:36
  5. Dance Patch Showcase (Naked) Andrew Aversa 3:57
  6. Trance & Synth Showcase (Naked) Andrew Aversa 3:05
  7. Light As Air (Naked) Brad Jerkins 2:50

Product Info


357 patches
26 Analog Poly
46 Basses
19 Distorted
17 Keys
23 Newstuff (new in 2015 release)
30 Pads
19 Sweeps & Gates


X/Y control on each patch
11 Arpeggios & Sequences
12 Digital Poly
13 FX & Percussion
54 Leads
9 Organs
13 Plucked
65 XY Variations


u-he's Zebra 2.6+ required



Tetralogy is a compilation of workhorse presets for the legendary u-he Zebra 2 synthesizer. Designed by Andrew Aversa (zircon) and originally released in 2009, this updated version includes 23 brand-new patches bringing the total to over 350 versatile sounds in a wide range of styles. This is the ideal addition to your Zebra 2 library, whether you need a solid base of bread and butter sounds, or a treasure trove of useful sounds to fill in the gaps.

Rather than focusing on far-out, esoteric sounds, Tetralogy is mainly oriented toward practical and instantly usable presets. There are tons of solid basses, leads, pads, poly synths, analog-modeled tones, emulations, and much more. Every patch comes equipped with X/Y controls as well allowing for instant variations and tweaking. Synthesis styles range from subtractive (virtual analog) to FM, wavetable, and additive, making good use of Zebra 2’s impressive capabilities.

Tetralogy has been enjoyed by countless Zebra 2 users worldwide, and it’s now more affordable and complete than ever. We know you’ll find it useful and inspiring for your own productions!


Testimonial – Jimmy ‘Big Giant Circles’ Hinson (Black Ops 4, Borderlands 2, Threes)

“Between Shreddage, Super Audio Cart, Juggernaut, and Mega Brass I don’t remember the last time I haven’t used an Impact Soundworks instrument in a track. The attention to detail is astonishing and it’s all so easy to use out of the box, which is a big deal.”