Fractal Audio AM4 - Compact Amp Modeler & Multi-FX

The AM4 Amp Modeler delivers great tone in a great package. It combines our latest Cygnus X-2 amp modeling, visual DynaCab™ speaker simulation, UltraRes™ user cabs, and a suite of impressive effects, with a streamlined workflow designed for players who want pro sound with less complexity. With a user interface inspired by traditional amps and pedals* AM4 places the full uncompromising sound of Fractal Audio in your hands—or, more accurately, at your feet. Fractal Audio is known for building audiophile-grade signal paths into guitar products, and the AM4 is no exception. Its low-noise “secret sauce” instrument input with Auto-Z impedance authentically loads your guitar pickups, while balanced outputs preserve signal integrity when going direct. An analog stereo insert provides Send and Return jacks for outboard gear, and a high-quality headphone amp supports silent practice and monitoring. Two Pedal ports each accept an expression pedal or external footswitch. For digital connectivity, AM4 includes S/PDIF I/O, USB-C for MIDI and 4×4 audio with re-amping, and 3.5 mm MIDI In and Out. The AM4 is powered by the included 9V DC 1.5A adapter.

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FEATURES

• Industry-Leading Amp Modeling – The AM4 features Fractal Audio’s latest amp modeling, widely recognized for accurate tone, dynamic feel, and continual innovation. Our technique models each component of the analog circuit so the model behaves like the real amp at any setting.
  
• Integrated Speaker Cab Simulation – Choose from 45+ DynaCab™ models with visual mic positioning, or load UltraRes™ and standard-format user IRs. Includes a stereo room simulator and more.
  
• Four Amp/Cab Channels – Four independent amp-and-cab channels per preset with gapless switching. Like having four premium amp pedals in one compact unit.
  
• Legendary Effects – Powered by Axe-Fx III algorithms: dozens of delays, 77+ drives, 79+ reverbs, plus 150+ types across chorus, compressor, flanger, phaser, tremolo, wah, EQ, filter, gate, and more.
  
• 104 Presets, 4 Scenes Each – 104 customizable presets, each with four blocks and four scenes. Every block has four channels for exceptional flexibility with features like gapless switching.
  
• Four Footswitches, Five Modes – Instant access to Presets, Scenes, Effects and effect channels, Tuner/Tempo, and Amp Mode, with custom colors and an integrated tap on/off boost.
  
• Extreme Audio Quality – Audiophile-grade signal path with the quality, clarity, noise performance, and headroom for stage or studio, plus a high-quality headphone output for silent monitoring.
  
• Expression – Connect up to two expression pedals or external switches for real-time control. Compatible with Fractal Audio EV pedals and many 3rd-party options.
  
• Pro-Grade I/O – low-noise Auto-Z input, balanced TRS outputs, stereo analog insert, S/PDIF I/O and MIDI.
  
• 4×4 USB Audio – Record processed outputs, capture a DI, monitor computer audio, or re-amp tracks—all through USB.
  
• AM4-Edit – Free editor/librarian for Mac/PC which visualizes the entire AM4. Create and edit presets, import and export cabs, manage system settings. Plus special features like block library, scene manager, and more.
  
• Upgradeable Firmware – Fractal Audio is known for continual improvements. New firmware updates can add new amps, effects, features, refinements, and performance enhancements—making your AM4 even better over time!