FM3 Manual: A Comprehensive Guide
This comprehensive guide details the Fractal FM3’s functionalities, covering everything from interface navigation to preset management and radio operation, as of April 2022.

The Fractal FM3 represents a powerful and compact solution for guitarists seeking a versatile all-in-one amp modeling and multi-effects unit. Building upon the legacy of the Axe-Fx III, the FM3 delivers exceptional sound quality and flexibility in a streamlined, road-ready format. This manual serves as a complete reference, detailing its features and operation as of April 2022.
Whether you’re a seasoned professional or a dedicated hobbyist, the FM3 offers an intuitive workflow and extensive customization options. Its footswitch functionality, mirroring expression pedals and MIDI control, allows for dynamic parameter manipulation during live performance. Explore the possibilities of controlling effects like delay hold or LFO speed with dedicated switches. Understanding the FM3’s capabilities unlocks a world of sonic possibilities.
What is the FM3?
The Fractal FM3 is a floor-based, all-in-one amp modeler and multi-effects processor designed for guitar, bass, and other instruments. It’s a compact iteration of the renowned Axe-Fx III, offering a vast library of meticulously crafted amplifier models, effects, and speaker cabinet simulations. Essentially, it aims to replace traditional guitar rigs – amplifiers, effects pedals, and recording interfaces – with a single, powerful unit.
The FM3 isn’t just about replicating existing gear; it’s about expanding sonic possibilities. Its footswitches function much like expression pedals or MIDI controllers, enabling real-time control over parameters. Users can creatively assign these switches to modify effects, offering dynamic performance control. As of April 2022, it stands as a sophisticated tool for both stage and studio use.
Key Features and Specifications
The FM3 boasts a powerful processing engine delivering a wide range of high-fidelity tones. Key features include a comprehensive library of Fractal Audio’s amp models and effects, alongside extensive connectivity options. It supports USB connectivity for firmware updates and preset management via Fractal Audio Manager.
Regarding specifications, the FM3 utilizes the Galaxy S23 series battery, with capacities ranging from 3785mAh (S23) to 4855mAh (S23 Ultra), offering variable battery life depending on usage. Control switches function as modifiers for effect parameters, similar to expression pedals. The unit supports radio functionality, including FM1, FM2, FM3, DAB, and MW/LW bands, selectable via dedicated buttons.

Understanding the FM3 Interface
The FM3 interface centers around a main display, complemented by knobs, switches, and buttons for intuitive control and efficient navigation through menus.
The Main Display
The FM3’s central hub is its high-resolution main display, providing a clear and comprehensive view of all parameters, settings, and operational modes. This display dynamically adapts to the selected function, offering detailed visualizations of effects blocks, amplifier models, and radio band information;
It showcases currently selected presets, tuner information, and crucial system status indicators. The display’s brightness is adjustable to suit various lighting conditions, ensuring optimal visibility during live performances or practice sessions.
Furthermore, the screen facilitates easy navigation through the FM3’s menu system, allowing users to quickly access and modify settings. The display also visually represents the selected radio band – FM1, FM2, FM3, DAB1, DAB2, DAB3, MW, or LW – confirming the current tuning status.
Knobs, Switches, and Buttons
The FM3 features a meticulously designed control surface, comprising a collection of knobs, switches, and buttons that provide tactile and intuitive control over its vast array of features. These controls are central to real-time parameter adjustments and navigating the unit’s extensive menu system.
Knobs allow for precise adjustments of gain, level, and other critical parameters. Dedicated switches enable quick access to frequently used functions, while buttons facilitate menu navigation and selection. Control switches function similarly to expression pedals, acting as modifier sources for effect parameters like delay hold or LFO speed.
The arrangement is optimized for performance, allowing musicians to make adjustments on the fly without disrupting their playing. These physical controls complement the main display, offering a comprehensive and responsive user experience;
Navigation and Menu System
The FM3’s menu system is designed for efficient access to its extensive features and settings; Navigation is primarily achieved through a combination of the main display, the encoder knob, and dedicated buttons. The system is logically structured, categorizing parameters for ease of use.
Users can scroll through menus, select options, and adjust values using the intuitive interface. The display provides clear visual feedback, showing current settings and parameter names. Understanding the menu hierarchy is crucial for customizing presets and optimizing the FM3 for individual playing styles.
The manual emphasizes the importance of familiarizing oneself with the menu system before extensive use. Careful exploration unlocks the full potential of this powerful floor modeler, allowing for deep customization and precise control.

Footswitch Functionality
Footswitches on the FM3 function like expression pedals or MIDI, acting as modifiers to control effect parameters, such as delay hold or LFO speed.
Footswitch Modes: Standard, Latch, Momentary
The FM3 offers versatile footswitch modes to suit diverse playing styles. Standard mode activates a function while the footswitch is held, releasing it deactivates the function – ideal for wah or volume swells. Latch mode toggles the function on or off with each press, perfect for momentary effects like a stutter or tap tempo.
Momentary mode activates the function only while the footswitch is pressed, releasing it immediately disables it; this is useful for things like a momentary kill switch or a quick filter sweep. These modes are configurable per footswitch, allowing for customized control. Remember to consult the owner’s manual for detailed instructions on assigning and utilizing these modes effectively within your presets. Experimentation is key to unlocking the full potential of the FM3’s footswitch capabilities;
Control Switch Assignments
The FM3’s control switches function much like external expression pedals or MIDI controllers, acting as modifier sources for effect parameters. You can assign these switches to control a wide range of functions, offering deep control over your sounds. For example, a control switch could operate the hold switch on a delay or reverb, or dynamically change the speed of an LFO.
Any parameter that accepts a modifier can be assigned to a control switch, providing intuitive and hands-on control during performance. The r/AxeFx Reddit community highlights the clever use of switch layouts to minimize the need for additional hardware. Refer to the owner’s manual for a complete guide on assigning and utilizing control switches to maximize your FM3’s potential.
Using Footswitches as Modifiers
The FM3’s footswitches aren’t limited to simple on/off functionality; they excel as modifiers, controlling effect parameters in real-time. Similar to control switch assignments, footswitches can be configured to influence parameters like delay hold times, reverb decay, or LFO rates. This allows for dynamic shifts in tone and texture directly from the floor, enhancing performance expressiveness.
Essentially, footswitches become versatile control elements, expanding the FM3’s capabilities beyond basic preset switching. The ability to use them as modifiers reduces reliance on external expression pedals for certain functions, streamlining your setup. Explore the owner’s manual for detailed instructions on assigning modifiers and unlocking the full potential of your footswitches.
Footswitch Functions Guide (Version 1.3)
This guide, current as of April 2022, serves as a complete reference for understanding footswitch operation on the Axe-Fx III and FM3. Footswitches function much like external expression pedals or MIDI controllers, offering extensive control over your sound. They operate as modifier sources, enabling real-time adjustments to effect parameters – think delay hold, reverb speed, or LFO modulation.
Version 1.3 details how to assign control switches to various parameters, allowing for nuanced control directly from the floor. The guide emphasizes that any parameter accepting a modifier can utilize a control switch. Refer to the full owner’s manual for in-depth explanations and advanced configuration options to maximize your FM3’s potential.

Connectivity and I/O
The FM3 offers versatile input/output options and USB connectivity, facilitating integration with Fractal Audio Manager and external expression pedals for expanded control.
Input and Output Options
The Fractal FM3 boasts a comprehensive suite of input and output options, designed for seamless integration into various performance and recording setups. It features a standard ¼” instrument input, accepting both high-impedance guitar/bass signals and line-level sources. For outputs, the FM3 provides stereo ¼” outputs for connecting to amplifiers, mixers, or recording interfaces. Additionally, a dedicated headphone output with adjustable volume allows for silent practice or in-ear monitoring.
Further connectivity includes an auxiliary input, useful for backing tracks or external audio sources. The FM3 also supports digital audio output via its USB port, enabling direct recording to a computer. These versatile I/O capabilities ensure the FM3 can adapt to diverse musical scenarios, offering flexibility for both stage and studio applications.
USB Connectivity and Fractal Audio Manager
The Fractal FM3 utilizes USB connectivity for several crucial functions, including firmware updates, preset management, and direct audio recording. Connecting the FM3 to a computer via USB allows users to access the Fractal Audio Manager (FAM) software – a powerful tool for in-depth configuration and control.
FAM enables users to backup and restore presets, import and export custom content, and manage system settings. It also facilitates firmware updates, ensuring the FM3 always has the latest features and improvements. Furthermore, the USB connection allows the FM3 to function as an audio interface, enabling direct recording of its processed signal into a DAW. This streamlined integration simplifies workflow and expands creative possibilities.
Expression Pedal Integration
The Fractal FM3 offers robust expression pedal integration, significantly expanding its control capabilities. While not strictly required for all users, an expression pedal unlocks a wealth of performance options, particularly for effects like wah, volume swells, and dynamic parameter manipulation. The FM3 recognizes standard expression pedals, allowing real-time control over various effect parameters.
Users can assign expression pedals to control virtually any parameter within a preset, offering nuanced and expressive performance control. This includes parameters like delay time, reverb decay, distortion gain, and modulation rate. Clever assignment of expression pedals, as discussed on r/AxeFx, can minimize the need for additional footswitches, streamlining a player’s rig. The FM3 treats expression pedals similarly to control switches and MIDI sources.

Preset Management
The FM3 allows users to create, save, organize, import, and export presets, offering extensive control over sound configurations and performance setups for diverse musical needs.
Creating and Saving Presets
The FM3 empowers users with a flexible preset system, allowing for the creation of customized tones and effects chains. Building a preset involves sculpting sounds using the FM3’s extensive library of amplifiers, cabinets, and effects. Adjust parameters to achieve desired sonic characteristics, and experiment with different combinations to unlock unique tones.
Saving a preset is straightforward: navigate to the preset management section and select a save slot. You can overwrite existing presets or save to an empty slot. Descriptive naming is crucial for easy recall during live performance or studio sessions. The FM3 supports a robust organizational structure, enabling categorization of presets for streamlined access. Regularly backing up your presets via Fractal Audio Manager is highly recommended to prevent data loss.
Preset Organization and Categories
Effective preset organization is vital for seamless performance with the FM3. The unit allows users to categorize presets, creating a logical structure for quick access to desired sounds. You can establish broad categories like “Clean,” “Crunch,” “Lead,” or “Effects,” then further refine them with subcategories for specific genres or applications.
This hierarchical system simplifies navigation during live sets or recording sessions. Consider tagging presets with keywords for easy searching. Fractal Audio Manager facilitates preset management on your computer, allowing for bulk editing and categorization. Regularly reviewing and refining your preset organization ensures a streamlined workflow. A well-organized library maximizes the FM3’s potential, enabling rapid tone switching and creative exploration.
Importing and Exporting Presets
The FM3 offers robust preset importing and exporting capabilities, enhancing workflow and collaboration. Utilizing Fractal Audio Manager (FAM), users can seamlessly transfer presets between the FM3 and a computer. Exporting presets creates backup copies or allows sharing with other FM3 users. Importing enables access to a vast online community of preset creators.
FAM supports bulk import/export, streamlining the process for large preset libraries; Presets are typically stored as .fpx files. Ensure compatibility by verifying file formats. Regularly backing up presets is crucial to prevent data loss. The FM3 also supports direct preset transfer via USB, offering an alternative to FAM. Explore online resources and forums for a wealth of user-created presets to expand your sonic palette.

Radio Functionality (FM1/FM2/FM3/AM)
The FM3 allows selection between FM1, FM2, FM3, DAB1, DAB2, DAB3, MW, and LW bands; the chosen band is displayed on the unit’s screen.
Selecting Radio Bands
The Fractal FM3 provides a versatile radio experience, allowing users to cycle through a variety of bands. To select your desired radio band, simply press the FM1/FM2/FM3/AM button. Each press will sequentially shift the selection through the available options.
The band switching order is predetermined and follows this sequence: FM1, FM2, FM3, DAB1, DAB2, DAB3, MW, and finally, LW. This consistent order ensures predictable navigation. The currently selected band is clearly indicated on the FM3’s display, providing immediate visual confirmation of your chosen station source.
This straightforward process allows for quick and easy access to your preferred radio broadcasts, whether you’re seeking local FM stations, digital DAB channels, or medium and long wave signals.
Band Switching Order (FM1, FM2, FM3, DAB1, DAB2, DAB3, MW, LW)
The FM3’s radio functionality utilizes a defined band switching order for consistent and predictable operation. Pressing the FM1/FM2/FM3/AM button cycles through these bands sequentially. Understanding this order is crucial for quickly accessing your desired radio source.
The sequence begins with FM1, followed by FM2, then FM3. Next, it progresses through the Digital Audio Broadcasting (DAB) bands: DAB1, DAB2, and DAB3. Finally, it includes Medium Wave (MW) and Long Wave (LW) bands, completing the full cycle.

This fixed order—FM1, FM2, FM3, DAB1, DAB2, DAB3, MW, LW—ensures that each press of the button predictably moves to the next available band, streamlining the radio selection process for the user.

Power and Battery Life
The FM3 operates on a standard power supply or utilizes the battery of a Galaxy S23 series device, offering up to 4855mAh capacity for extended use.
Power Supply Requirements
The Fractal FM3 is designed for global use and accommodates a wide range of power input voltages. It requires a 9V DC power supply, center-negative, with a minimum current capacity of 1.5 Amps. While the FM3 can function with a lower amperage supply, it may lead to unpredictable behavior or operational issues, especially when utilizing power-hungry features or connected peripherals like expression pedals.
Fractal Audio strongly recommends using the official Fractal Audio power supply to ensure optimal performance and stability. Using a non-compliant power supply could potentially damage the unit and will void the warranty. The FM3 also uniquely leverages the battery capacity of compatible Samsung Galaxy S23 series smartphones (S23, S23+, S23 Ultra) for portable operation, offering varying runtimes based on the specific model and usage.
Battery Capacity (Galaxy S23 Series)

The FM3 offers a unique power solution by utilizing the battery capacity of Samsung Galaxy S23 series smartphones. Specifically, the Galaxy S23 is rated at 3785mAh, the Galaxy S23+ at 4565mAh, and the Galaxy S23 Ultra boasts a 4855mAh battery. These capacities directly translate into operational time for the FM3 when connected.
However, actual battery life will vary significantly depending on several factors, including network environment, usage patterns, screen brightness, and the number of active effects and features being employed. Power-intensive operations, such as high-resolution display settings or extensive use of complex algorithms, will naturally consume battery power more rapidly. Fractal Audio notes that these are rated capacities, and real-world performance may differ.
Battery Life Considerations
Maximizing FM3 battery life requires mindful usage. Several factors impact how long the unit operates on a Galaxy S23 series battery. Reducing screen brightness, minimizing the use of graphically demanding effects, and optimizing preset complexity are key strategies. Frequent use of Wi-Fi or Bluetooth will also contribute to faster battery drain.
Consider carrying a fully charged power bank compatible with the Galaxy S23 series for extended performance during gigs or rehearsals. The FM3 doesn’t have an internal battery; it relies entirely on the connected smartphone. Monitoring the smartphone’s battery level is crucial to avoid unexpected power loss mid-performance. Fractal Audio recommends testing your typical setlist to gauge realistic battery life expectations.