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True Iron

Saturation Plugin by Kazrog
True Iron
True Iron by Kazrog is a Virtual Effect Audio Plugin for macOS and Windows. It functions as a VST Plugin, an Audio Units Plugin, a VST 3 Plugin and an AAX Plugin.
System Requirements
Windows 7 or higher required.
System Requirements
Mac OS X 10.9.5 or higher required.
Copy Protection
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True Iron is a plugin made by Shane McFee in conjunction with Devin Powers (Powers Music Company). It accurately emulates 6 classic line transformers, known for their use in many of the biggest names in vintage analog outboard sound processing. Models are based on the UTC 108 X, the Malotki E4M – 4001B, the Western Electric 111C, the Haufe V178, the Marinair LO1166/A (new in 1.2), and the UTC O-12 (new in 1.2).

These transformers add weight, heft, and girth to your mixes and masters. The plugin features adjustable strength, input impedance, wet/dry ratio, and a special "Crush" control to add fat transformer saturation to tracks and buses. Plus, the CPU usage of the plugin is low enough that you can add it to every track or bus in a mix for added virtual analog warmth across your entire mix.


  • 6 transformer emulations in one plugin – Models are based on the UTC 108 X, Malotki E4M – 4001B, Western Electric 111C, the Haufe V178, Marinair LO1166/A, and UTC O-12.
  • Strength – Adjust the tendency toward nonlinearity of the transformer, continuously variable to allow boosts and cuts in warmth while maintaining the large headroom classic transformers are known for, throughout the range of the control.
  • Wet/Dry Mix control – Blend just as much True Iron as you want into each track and bus in your mix, to taste.
  • DNA mode (new in 1.2) – This is an enhanced level of frequency response modeling based on Devin Powers' individual transformer stereo pairs. This mode will incur additional CPU usage, but is even more accurate with the original hardware being emulated. Disabling it reverts back to the simplified, ultra-efficient yet still highly accurate modeling used in True Iron 1.1.5 and earlier.
  • CPU Friendly – Run an instance of True Iron on every track and bus to elevate your mix without noticeably taxing your CPU.
  • Selectable input impedance – Unity (default) for convenient dropping into existing projects without apparent loudness changes, and boost for the most accurate emulation of the input stage of the modeled hardware.
  • Crush and Crush 2x – Add warm overdrive or distortion to your tracks, emulating the sound of transformers pushed beyond their intended operating range with up to +48dB of auto compensated gain.

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