The AM4 Amp / Cap-Sim and Multi-Effects Pedal by Fractal.

The AM4 is an Amp Modeling, Speaker Simulation, Multi-Effects, .... Pedal.
It combines the Cygnus X-3 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.

Specs:

• Amp modeling + cab simulation + full multi‑effects in one compact pedalboard‑friendly unit.
• Built on the same component‑level physical‑modeling engine as the company’s flagship processors (same base tech as the bigger “Axe‑Fx” units) , so Amp Models aim to behave dynamically, like real tube amps.
• Includes 240+ amp models, 45+ built‑in speaker/cab simulations (DynaCab™), and supports loading your own IRs (cab impulses) for maximum tone flexibility.
• Huge Effects Library , over 325 effects covering drives/OD/distortion, Reverbs, Delays, modulation, EQ, dynamics, Wah, filters, and more.
• Low‑noise instrument input with “Auto‑Z” impedance switching (optimizes loading for different pickups).
• Balanced outputs (TRS main outs) for FRFR speakers, mixer, power amp, etc.
• Stereo analog insert (send/return) — so you can insert external pedals or gear in the signal chain.
• Additional I/O: Headphone output, two expression‑pedal/foot‑controller jacks, S/PDIF I/O, MIDI IN/OUT (3.5 mm TRS with adapter), USB‑C for 4×4 audio + MIDI (for DAW recording, re‑amping, or playback), and ability to load IRs.
• Power: 9 V DC, 1500 mA, center‑negative.
• 104 Presets: each preset can hold 4 blocks and 4 scenes.
• Amp‑block supports 4 channels per preset, with gapless switching , so you can switch between amp & cab settings (e.g. clean → crunch → lead → solo) seamlessly, without dropouts.
• Foot‑control: four footswitches + a tap/boost mode + scenes/effects/preset/tuner modes , friendly for live use or pedalboard integration.
• Dedicated editor software (AM4‑Edit for Mac/PC) for deep editing of amps, cabs, effects, controller assignments, system settings , plus firmware updates.

Owner's manual

Product specs