Heavy Hitters Collection - Volume II


Released on August 28, 2017.

Cabinets and Speakers

"212 ZLFB" based on a Zilla™ Fatboy closed back 2x12 cabinet.

  • H75 based on Celestion® G12H-75 Creamback speakers.
  • LYN based on Celestion® G12-50GL Lynchback speakers.
  • "V30" based on Celestion® Vintage 30 speakers.

"212 ZLSF" based on a Zilla™ Super Fatboy closed back 2x12 cabinet.

  • "M25 based on Celestion® 6402 cone G12M-25 speakers.
  • "V30 based on Celestion® Vintage 30 speakers.
  • "WLV based on Celestion® WH-80 Wolverine speakers.

"412 EDVH" based on an EVH® 5150 III 4x12 cabinet.

  • "EDVH based on Celestion® G12EVH speakers.
  • "SHF based on Sheffield® 1230 speakers.
  • "V30 based on Celestion® Vintage 30 speakers.

"412 EMPR is based on an Emperor™ 4x12 cabinet.

  • "C65 based on Ted Weber® ceramic 1265 speakers.
  • "H100 based on Celestion® G12H-100 speakers.
  • "V30" based on Celestion® Vintage 30 speakers.

Feature Set

  • 6 industry standard microphones:
    57 - 70 - 121 - 160 - 414 - 421
  • 3 auxiliary capture types:
  • incremental position sweeps across speaker sweet spots
  • meticulously crafted proprietary multi-mic mixes
  • speaker mix permutations for each cabinet
  • major production/mastering grade signal chain

File Format

Please read this section carefully!

Wave Audio (.wav)

Wave audio format IR's (.wav) are compatible with convolution reverb type loaders in recording software and outboard hardware units and are provided in:
  • 24 bit resolution
  • 44.1, 48, 88.2, and 96 kHz sample rates
  • minimum phase transformed
  • mono channel count


If your platform cannot load .wav files, make sure you explore the free or commercial conversion applications available elsewhere for your device. As per Section 9. Terms of Sale of the Terms of Use Agreement, there are NO REFUNDS ON DIGITAL GOODS, which includes this library.


Heavy Hitters
Volume II
212 ZLFB
Jon Symons
"Proggy Jam"
212 ZLFB
Jon Symons
212 ZLSF
Jon Symons
212 ZLSF
Jon Symons
"Unstoppable Momentum"
212 ZLSF
Jon Symons
"Got Chill?!"
212 ZLSF
Jon Symons
"Ancient Anger"
212 ZLSF
Jon Symons
412 EDVH
Jon Symons
"Super Sludge"
412 EDVH
Jon Symons
412 EMPR
Jon Symons
412 EMPR
Jon Symons
Jon Symons
"Sentient Machine"
Jon Symons
"Reign of Pain"


Included File 01:

Included File 02:

Included File 03:

Included File 04:

Software & Plugins

Currently In Development
Impulse Responses

Acustica Audio N3
Fractal Audio Format
Line 6 Format
Wave Audio Format
Info & Support

I.R. Tutorials
Privacy Policy
Terms of Use
Shipping & Returns
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