Flagship Amp Tone in a Compact Footprint
The Fractal Audio AM4 Amp Modeler brings the company’s flagship Axe-Fx III tone into its most compact all-in-one unit ever – amp modeling, visual speaker simulation, and a deep effects suite in one rugged, pedalboard-ready enclosure. At its heart is Cygnus X-3, the same industry-leading amp modeling as the Axe-Fx III. Rather than capturing a static snapshot, it models each component of the analog circuit, so you get a fully adjustable amp that behaves like the real thing at every setting – from sparkling cleans and edge-of-breakup to molten leads, across 240+ amp models.
The interface is inspired by traditional amps and pedals, keeping the controls that matter on screen, while a hidden “Expert Edit” layer unlocks deeper parameters when you want them. Speaker sounds come from the visual DynaCab system: 45+ guitar and bass cabs where you position a virtual mic in real time, load your own IRs as UltraRes user cabs, and add depth with a built-in stereo room sim.
How It Fits Your Rig
The AM4 is perfect on a pedalboard, sits neatly on a studio desk, and slips into a backpack as a grab-and-go fly rig. Four footswitches with five modes give instant access to presets, scenes, effects, tuner/tempo, and a new Amp Mode with one-tap boost. In the studio it doubles as a 4×4 USB interface – record processed tones, capture a DI for re-amping, or monitor playback over a single USB-C cable. A high-quality headphone amp makes silent practice easy.
Features & Specs
- Amp Modeling: Cygnus X-3, 240+ models, four foot-switchable channels per preset.
- Speaker Sim: 45+ DynaCab cabs with real-time mic positioning, UltraRes user IRs, stereo room sim.
- Effects: 325+ models – 77+ drives, 79+ reverbs, dozens of delays, plus chorus, compressor, flanger, phaser, tremolo, wah, EQ, filter, and gate.
- Presets: 104, each with four blocks, four scenes, four channels; gapless switching.
- Analog I/O: Auto-Z instrument input, balanced 1/4″ outputs, stereo insert loop, headphone out.
- Digital I/O: S/PDIF in/out, USB-C 4×4 audio with re-amping, 3.5mm MIDI in/out.
- Editor: Free AM4-Edit with Fractal-Bot; upgradeable firmware.
- Dimensions: 10.0″ W x 6.2″ D x 2.3″ H. Weight: 3 lbs 9.5 oz. Power: Included 9V DC 1.5A.
Frequently Asked Questions
How is it different from a capture-based modeler?
You get a fully adjustable amp model from Cygnus X-3 physical modeling, not a fixed snapshot – dial in your own tone at any setting.
Can I record with it at home?
Yes. It’s a 4×4 USB interface for tracking, re-amping, and monitoring straight into your DAW.
Does it include speaker and cab simulation?
It does. The visual DynaCab system offers 45+ guitar and bass cabs with real-time mic positioning, supports your own IRs, and adds a built-in stereo room sim.
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