Audio plugins shaped by real sessions, real equipment and a focus on simplicity.
Hi, I'm Jonas — the person behind JMR Sound.
I work with live sound, studio recording, mixing and mastering. Years of working with musicians and real equipment have shaped what I value in audio tools: good sound, clear controls and dependable results.
JMR Sound grew from a simple idea: create straightforward plugins that fit the way I actually work — and make them useful to other musicians and engineers, too.
Pictured working with live audio during a production.
The first plugins grew from everyday workflow needs: fewer distractions, direct controls and predictable results. That practical approach continues to guide the One Series, while the Special Series explores something different — modelling the behaviour of physical equipment we can examine ourselves.
Original, focused processors built around practical mixing decisions. Fast access to useful controls matters more than crowded interfaces or endless options.
One Series plugins may take inspiration from familiar processor types, but they are not presented as measured replicas of specific hardware.
Explore One Series →Special Series models begin with hardware available to us for testing. We document the reference unit, signal chain, measurement approach and the scope of what was actually captured.
Where the reference is incomplete or a circuit was not measured, we say so. A hardware-inspired guess is not the same thing as a validated model.
Explore Special Series →Every control should serve a practical job. We prefer clear workflows over unnecessary complexity.
For hardware models, controlled signals help reveal dynamic behaviour; real recordings help assess the result in context.
Describe the reference, signal chain, measured behaviour and limitations. Separate observed results from modelling decisions.
We want technically curious musicians and engineers to understand more than a marketing claim. Special Series product pages include details of the original signal chain, test methods and findings whenever we can substantiate them.
Our dbx 166 reference was examined using direct sine-wave level transitions from −50 dB to −6 dB and back to −50 dB, with recordings across every ratio setting. We also compared the compressor against our plugin using real audio material.
The hardware failed before we could fully investigate the gate and PeakStop limiter, so those sections are not part of the model.
Read the 166 Special notes →A reference chain built around an original-circuit Marshall Reverb 12 (5205), a Marshall 1960 cabinet with Celestion G12T-75 speakers and a Behringer B906 microphone.
The reference amplifier's reverb was nonfunctional, and the plugin does not claim to model a working reverb circuit.
Read the Reverb 12 notes →Product and manufacturer names are used to identify reference equipment. JMR Sound is independent and is not affiliated with or endorsed by those manufacturers.
We believe useful software should feel straightforward, and technical claims should be supported by what was actually tested. Our free plugins are available to try now; paid releases are marked Coming Soon until purchasing is available.
Explore free plugins