Dual NAM A2 Full VST3 – 1.2.0

First public test release of Dual NAM A2 Full: a Windows x64 VST3 with two independent Neural Amp Modeler engines (A2 Full, also A1/LSTM), two IR loaders, true stereo output and a built-in noise gate.

Download

• Plug-in: DualNAM_A2_Full-1.2.0-win-x64.zip (attached below)
  SHA-256: 4641CF28E5E80D28DD5D232C1FCC9F53E80E8251846B53D44186C7EB273A40DB
• Complete source code: DualNAM_A2_Full-1.2.0-source.zip (attached below)
  SHA-256: FD77A85F40E72A863DBE9DAB1DF0352A4B2F33A5F094BA1D1209C58AF90F2912
  The exact source state the plug-in was built from; how to build it is described in BUILD.md.

Note: the "Source code (zip)" and "Source code (tar.gz)" archives that GitHub generates automatically for this tag contain only the documentation that was in the repository when the tag was created, not the source code. Use DualNAM_A2_Full-1.2.0-source.zip.

Highlights

• Two independent NAM engines; A2 files always play their full size (A2 Full). Inference uses the official, unmodified NeuralAmpModelerCore.
• Two mono IR loaders, 3-band EQ, input/output gain, constant-power pan, mute and bypasses per channel; blend and master.
• Noise gate with threshold, attack (0.1–50 ms), release (10–1000 ms) and a Pre NAM / Post NAM switch; one shared envelope for both channels, no latency, click-free switching.
• Mono bus: both channels at full level. Stereo bus: left input only.
• Automatic resampling and exact latency alignment for models and projects at different sample rates.

Installation

Unzip, then run Install.ps1 in an administrator PowerShell:

powershell -ExecutionPolicy Bypass -File .\Install.ps1

It checks the package, installs Dual NAM A2 Full 1.2.0.vst3 into C:\Program Files\Common Files\VST3\ and replaces older copies of this plug-in. Installing by hand and the full user guide are described in the README.md inside the ZIP.

Requirements

Windows 10/11 x64, a VST3 host (tested in Studio One 8 Pro), NAM models (.nam) and mono IRs (.wav).

Known limitations

• Windows x64 VST3 only; the source is available for own ports, but only Windows x64 is developed and supported.
• Mono IRs only, max. 8192 samples.
• Resampling (e.g. 44.1 kHz project with 48 kHz models) limits accuracy; 48 kHz projects are not affected.
• Tested by the author in Studio One 8 Pro; other hosts only with the Steinberg VST3 validator.

Credits, disclaimer and license

Developed by Manuel Adler, ADLER GUITAR WORKS. Based on Gateway Stereo Plus (© 2026 Tunc M Sengiz) and the Neural Amp Modeler plug-in and core by Steven Atkinson and contributors.

Development of Dual NAM A2 Full was assisted by AI-based coding tools under human direction, testing, and review.

Not affiliated with or endorsed by Steven Atkinson, the Neural Amp Modeler project, or the authors of Gateway Stereo Plus.

MIT License. Third-party notices and license texts are in the ZIP (LICENSES/), inside the installed plug-in (Contents/Resources) and in the repository (LICENSES/). Eigen (MPL-2.0) source: https://gitlab.com/libeigen/eigen, commit ed8cda3ce4cb9d12640f9236fed968655a93b604.

VST is a trademark of Steinberg Media Technologies GmbH.