This product is available to pre-order with an ETA of mid November.
The Grand Maestro Anniversary Limited Edition (GMA) represents the zenith of our craftsmanship and innovation, celebrating the esteemed legacy of FATfreq's Tribrid Flagship - the Grand Maestro within our Maestro series.
At the core of the GMA lies a newly upgraded low-frequency dynamic driver with Basscannon v2, working in harmony with a meticulously re-engineered gold-plated bass resonance chamber. This combination unlocks a bass response that is deeper, more visceral, and richly textured, while retaining absolute control and separation. With our new Resoflow Quad EST system, treble reproduction is exceptionally smooth—free from harsh peaks or unwanted resonances—resulting in an airy, refined top end. This also enhances midrange clarity, creating a sound signature that feels both powerful and effortlessly natural.
A defining feature of the GMA is its compatibility with our NOAH tuning modules, allowing users to tailor the sound to their preferences. Every unit includes the standard Blue (Balanced Bass) and Black (Bass Power) modules and an exclusive Superstage Module, specially designed for the Anniversary model. This limited edition module features a gold-plated brass resonator plate and is tuned to expand the perceived soundstage, offering a unique sense of openness and dimension. Also included is our new limited edition Silver 'Reference' module. This module tightens the low end and reveals microdetails for a true reference sound signature — ideal for critical listening, mixing, and mastering, while still preserving the musicality and depth of your mix. Experience holographic and life-like sound with GMA's built-in vocal boost switch for a total of 8* expertly-tuned frequency curves.
The chassis of the GMA is precision-machined from aerospace-grade titanium, providing superior strength without sacrificing comfort or weight. To further enhance durability, it is reinforced with a Diamond-Like Carbon (DLC) coating, providing added protection against wear and corrosion. The faceplate is crafted from gold-plated brass, not only adding a touch of visual elegance but also enhancing the acoustic resonance for a richer, more refined sound. Each package comes packaged in a bespoke collector’s exhibition case featuring removable inserts and an integrated dehumidifier to keep your IEMs safe from moisture and performance ready, especially for long-term desktop storage.
Precision-Tuned Enhanced Bass Chamber
Basscannon v2.0. Redesigned for deeper impact and greater texture, the enhanced bass chamber delivers authoritative sub-bass and tight, punchy lows. Experience a visceral low-end presence that doesn’t muddy the mids, ideal for both live performance and critical listening.
Limited Edition Superstage Module
Unlock expansive 3D imaging with the Superstage module. The integrated gold-plated brass resonator adds warmth and body to the spatial cues, allowing for lifelike instrument separation and a holographic soundstage that draws you into every mix.
Limited Edition Silver "Reference" Module
Achieve precision and balance with the Silver module. Crafted from lightweight aluminum alloy, this module tightens the low end and reveals microdetails for a clean, neutral tonal response—delivering a true reference signature that’s ideal for critical listening, mixing and mastering. All while preserving the musicality and depth of your mix.
Pressure-Tuned NOAH Technology
Detachable Bass Chamber Modules allow you to customize your Subwoofer Slam while retaining the breathability of our custom-built DD.
Black 'Power' Modules concentrates Sub-bass power for more Slam.
Blue 'Control' Modules controls the Sub-bass response for more Rumble.
FF Custom-Designed Vox Boost Switch
Enhance the clarity of vocals in your audio content with a flick of a switch. Whether you're listening to music, podcasts, or watching videos, you'll hear every note and word with remarkable precision.
Precision-Tuned Resoflow Quad EST
The latest generation of quad electrostatic drivers delivers exceptional treble detail and airiness, now enhanced by our ResoFlow waveguide system for improved driver integration and phase coherence. The result is crystal-clear, natural-sounding highs with unmatched detail retrieval and an expansive soundstage that extends up to 40kHz and beyond.
Anniversary Edition Upgraded Ergonomic Fit
The Grand Maestro Anniversary introduces a refined shell geometry—more compact and efficient than the original GM. It retains the same powerful internal acoustics while improving comfort and fit across a wider range of ears, reducing fatigue for extended use.
Anniversary Edition Cable Grand 'Origin' Cable
Included with every Grand Maestro Anniversary package, the Grand 'Origin' Cable is a bespoke creation crafted from a luxurious blend of copper, silver, gold, and palladium. Designed to elevate the GMA’s sonic performance, it enhances detail retrieval, dynamic range, and tonal richness with effortless finesse. Built with interchangeable ConX connectors and TermX terminations.
Anniversary Edition Exhibition Case
Every Grand Maestro Anniversary comes housed in a custom-built exhibition case with removable inserts—designed to showcase and preserve your IEMs.
At the heart of this case is an integrated active dehumidifier, developed to maintain optimal humidity levels and protect your IEMs from moisture-related degradation over time. Unlike conventional dehumidifiers that rely on heat, our system uses a proprietary electrolysis-based method, which decomposes water molecules (H₂O) into hydrogen ions and oxygen through a specialized membrane.
This protects both material and acoustic integrity — making the case a worthy long-term home for your flagship monitors.
Technology Developed by FATfreq in Singapore
Bass Cannon™ v2
(Patent Pending) Using proprietary dynamic woofers, bass chambers and acoustic filter networks, FATfreq was able to design the deepest bass ever recorded of over 20dB, concentrated below 200Hz with zero bleed. Not for the faint hearted.
NOAH Modules
Customizable bass chamber technology that revolutionizes in-ear monitoring. Switch out modules for personalized bass tonality and tuning, while doubling as pressure relief valves to prevent ear pressure build-up. Experience personalized sound and ultimate comfort with Noah Modules. Built with Basscannon™
Linear Impedance
FATfreq uses proprietary circuits to correct the non-linear impedances of multi-driver systems. The different output impedances across all your devices cause frequency response to vary. Having this tech ensures consistency in frequency response for all our IEMs when plugged into any device - Be it your mic-pack, mixer board, phone or dedicated DAP.
PhaseAlign
The absence of a DSP in IEMs means that we have to match the phase of multi-way systems via Acoustic delay. Using proprietary structures, we were able to align the low, mid and high frequencies such that they reach your eardrum in a coherent manner. Giving you the sound accuracy and resolution demanded on stage and studio.
Sonar La Trompa™
Inspired by the anatomy of the traditional french horn, FATfreq uses exponential horn curvature for gain control and to improve treble tonality via acoustics. Providing you with Smooth, natural sounding highs, grounded by a nice timbre in the mid and low frequencies.
