FOLDERS GUIDE

A Cabinet IR is the digitized data of the speaker cabinet → microphone → mic preamp portion of a guitar signal flow.

01
Signal flow: guitar
Guitar
02
Signal flow: head amp
Head Amp
03
Speaker cabinet with microphone
Speaker Cab & Mics
04
Mic preamp
Mic Preamp

Cabinet IR is

The digitized data of the speaker cabinet, microphone, and mic preamp section — the “air” between your amp and the console.

IR includes

  • Cabinet & speaker
  • Mic type & position
  • Room reverb
  • Mic preamp
Single MIC files ·
Single MIC folder screenshot

02 / Single MIC

Single MIC

Each filename suffix tells you which microphone was used to capture the IR. Five mic models are included.

  • Shure SM57 Unidyne III microphone

    57III Dynamic

    based on a Shure™ SM57 Unidyne III

  • AKG C414 B-ULS condenser microphone

    414ULS Condenser

    based on an AKG™ C414 B-ULS

  • Sennheiser MD421 White dynamic microphone

    421W Dynamic

    based on a Sennheiser™ MD421 White, Script Logo

  • Neumann U47 FET condenser microphone

    U47fet Condenser

    based on a Neumann™ U47 FET

  • sE Electronics VR1 ribbon microphone

    VR1 Ribbon

    based on a sE Electronics™ VR1

Mixed MIC folder ·
Mixed MIC folder screenshot

03 / Mixed MIC

Mix Balance

Mixed MIC files are pre-blended pairs of two microphones. The trailing two digits in the filename indicate the approximate mix ratio between mic A and mic B — for example, 7:3 is roughly 70% mic A and 30% mic B. The exact balance of each file is fine-tuned by ear during production, so the ratio is a guide, not a strict mathematical mix.

Mic A Ratio Mic B
7 : 3
6 : 4
5 : 5
4 : 6
3 : 7

04 / How to read a filename

How to read
a filename

Every IR file follows the same naming pattern. Each segment tells you the product, the mic(s) used, and — for Mixed MIC files — the balance.

ORNG-LTD_V30_M160+57III_5-5.wav

Product ORNG-LTD_V30 Cabinet / speaker model
MIC M160+57III Mic model(s) — single or pair
Balance 5-5 Mix ratio (Mixed MIC only)

05 / What is MPT?

What is MPT?

MPT (Minimum Phase Transformation) is a phase-aligned version of an IR. Unlike Natural Phase IRs — which need manual Distance alignment to prevent phase cancellation when stacked — MPT IRs share a uniform phase, so multiple files combine without alignment.

MPT IRs concept

MPT IRs: Easy to mix together

Multiple MPT IRs combine freely without phase alignment — all MPT files share a uniform phase characteristic, so their peaks align naturally.

Natural vs MPT waveform comparison

Natural vs MPT

Same IRs, different waveforms. MPT creates uniform peaks for all IRs. This subtle change in waveform affects the sound character.