Bogren Digital has released IRDX Studio, a free modern IR loader plugin for macOS and Windows.
Honestly, I haven’t loaded an IR in a while. Somewhere along the way, I realized IR loaders were leading me into micromanaging mode. I would audition dozens of cabinets, swap between mic positions, second-guess every choice, and never quite be happy with the result.
But IRDX Studio looks interesting enough that I’m going to give the whole workflow another try.
IRDX Studio is a five-slot IR loader with a graphical mixer. You drag IRs into slots, and the plugin draws a line between two slots, a triangle for three, a square for four, and a pentagon for five.
From there, you move a single dot around inside the shape to blend the IRs in real time, all kept in phase automatically. I think it’s a much more intuitive way to find a blend than dragging level faders.
Each slot has its own 5-band EQ, a resonance control (great for scooping out the low-mid honk and tightening the bottom end), and a delay control for tweaking the phase relationship between cabs.
There’s also a dedicated Audition Mode that temporarily bypasses the mixer and EQ so you can hear any IR raw on its own, scrolling through your library with the keyboard until something clicks.
Library management is where this thing really separates itself from older IR loaders, and I like it a lot. Each IR gets a frequency-response heat map preview that shows you at a glance where the energy lives. Bright bands in the lows mean a thick cab, bright bands up top mean something with lots of presence.
The plugin also auto-detects your project’s sample rate and hides any IRs in your folders that don’t match, which is pretty cool if your IR packs ship multiple rates and bit depths in nested folders. You can star favorites, hide duplicates, and quickly filter the list.
I also like having the A/B slots for quick comparison, along with undo/redo on every action, and the IR export feature that converts your blended sound into the correct format for hardware units like the Axe-Fx and Helix.
The plugin ships with a set of free Bogren IRs to get you going. But the most important thing is that you can use this plugin with third-party IRs.
The optional paid section is IRDX Technology (€49), which adds dynamic speaker behavior on top of static IRs. It’s developed by producer Jens Bogren and uses machine learning to reconstruct the non-linear compression and breakup that real speakers do, but conventional IRs can’t.
There’s a free trial inside the plugin if you want to hear the difference, plus a bundle with IRDX Core (€59 instead of €98) if you want it as a standalone effect too.
IRDX Studio is available in VST3, AU, and AAX formats for Windows 10+ and macOS 10.15+ (native on Intel and Apple Silicon, no Rosetta needed). A CPU with AVX2 support is required.
Download: IRDX Studio (FREE, optional IRDX Tech upgrade €49)
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Last Updated on May 17, 2026 by Tomislav Zlatic.
