For makers and artists, the new TONE3000 NAM Architecture 2 (A2) promises a paradigm shift in tone replication. The technology claims to capture the nuanced behaviour of vintage hardware—such as the breakup of a tube amp, the sag of a fuzz pedal, and the transient snap of an analog compressor—so faithfully that it is “virtually indistinguishable” from the analogue original. Crucially, this high-fidelity capability reportedly runs on hardware powered by a “three-dollar chip,” potentially freeing artists from the need for expensive vintage gear or high-end CPU-intensive software.
Open source ambition meets blind testing
TONE3000 describes A2 as the “most accurate and best sounding amp modeling technology in history,” asserting it delivers superior sound quality while consuming significantly less computing power than its predecessor. The system is fully open source, allowing any developer to implement the technology in commercial products ranging from desktop DAWs to budget multi-effects units.
Woodbury Shortridge, co-founder of TONE3000, stated the goal was simple: “Capture tone so faithfully that you couldn’t tell the difference.” He added that with this release, “the entire universe of analogue gear is now accessible.”
To validate these claims, the company conducted extensive testing against industry giants like Neural DSP, IK Multimedia, and Line 6. The results reportedly showed A2 outperforming rival platforms in both quantitative metrics and blind listening trials.
Blind tests and quantitative data
For the subjective blind tests, TONE3000 employed the MUSHRA methodology, described as the “audio industry’s gold standard for evaluating perceived sound quality” and used by bodies such as the BBC and EBU. Over 1,000 participants listened to 37 different tones, including guitar amps, bass rigs, pedals, and full signal chains. Listeners rated how closely anonymised digital models matched the reference recordings of real hardware. Across the dataset, A2 consistently scored closest to the reference.
Quantitative tests were also run across 39 tones, covering everything from clean amp sounds to high-gain setups. These included individual amps, pedal chains, cab simulations, and complex signal paths like a cranked Mesa/Boogie Dual Rectifier with vintage outboard-style processing. In these tests, A2 again reportedly came out ahead of competing systems.
“The bloom of a tube amp pushed into breakup, the sag of a fuzz pedal under a heavy chord, the snap of a transient through an analog compressor: A2 captures it all,” says the company.
Two versions for different needs
The architecture is available in two distinct versions to suit different hardware constraints:
- A2-Full: Aimed at studio and professional audio applications, delivering higher accuracy while using 30–40% less CPU than the previous A1 architecture.
- A2-Lite: Designed for embedded devices like guitar and bass multi-fx pedals. It runs at 50% CPU on an ARM Cortex-M7 chip, the same processor found in many popular modelling pedals.
Expanding the NAM ecosystem
The release also expands the wider NAM ecosystem. NAM files can already be used across a growing range of compatible software, amplifiers—such as the Blackstar Beam Mini—and pedals. Manufacturers integrating the TONE3000 API gain access to a library of more than 350,000 tone captures.
Stanley Vergilis, CEO of TONE3000, emphasises that the mission extends beyond modelling alone. “TONE3000’s mission is to make music creation universally accessible,” he says. “A2 accelerates that mission by democratising tone. A five-thousand-dollar vintage amp that was once locked away in a studio can now be captured, shared, and played by any artist, on any device, anywhere in the world.”
Key takeaways
- TONE3000’s A2 architecture claims to deliver sound quality indistinguishable from analogue originals while running on significantly lower CPU power than previous generations.
- Extensive blind testing involving over 1,000 participants using the MUSHRA methodology reportedly confirmed A2’s accuracy against major industry competitors.
- The technology is fully open source, with specific versions available for high-end studio use and low-cost embedded devices like budget multi-effects pedals.
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