Everything that made the Grand Maestro Anniversary iconic remains: its eight tuning settings, boundless resolution, expansive soundstage, and elevated it further with the new Basscannon V2.0+. Now featuring an additional dynamic driver in an isobaric configuration, it delivers deeper, faster, and more controlled low-end impact, delivering a truly endgame-level bass experience that brings the sensation of live performance to your ears.
Completing the experience is ASCENDIUM, our flagship-grade cable that uses materials from the Centurion, Horus, Beyond Limited Edition, strikes the perfect balance between reference accuracy and musical engagement. The result is greater clarity, harmonic richness, and a profoundly satisfying listening experience.
Founders’ Note
"The Founders’ Edition exists for those who believe that music should not only be heard, but deeply felt. It is for those who see in sound the same things we do—memory, emotion, and meaning.
For me, this edition is a milestone. Not only as the founder of FATfreq, but as someone who has always believed that audio, when done right, can be transformative. I hope the Grand Maestro Anniversary (Founders’ Edition) gives you a piece of that transformation every time you press play."
—Benjamin Tan
Founder, FATfreq
"At the core of EFFECT AUDIO, our pursuit has always been Perfection, that fleeting moment when the gear disappears and only music remains. Working with the FATfreq team was an inspiring journey as we collectively pushed the boundaries of what an IEM experience can be, whether it’s the rumble of sub-bass, the lift of soul-stirring airy vocals, or the glide of a silky top end.
Drawing on 16 years of cable-crafting expertise, ASCENDIUM was born: forged from flagship-worthy materials and geometries, designed to reveal the intricacies and unique personality of the Grand Maestro Anniversary Founders’ Edition (GMA FE). To me, GMA FE is a celebration of that shared obsession: Sound, Design, and Perfection made tangible. I could not be prouder of what our teams have built, and I invite you, our biggest supporters, to lose yourself completely within it."
— Zou Suyang
Founder, EFFECT AUDIO
Dual Force. Double the Impact.
Introducing the Basscannon v2.0+ — a next-generation bass powerhouse equipped with a brand-new Dual Isobaric Dynamic Driver configuration. By coupling two precision-matched dynamic drivers in an isobaric layout, we've supercharged the low-frequency performance while maintaining absolute control.
Expect deeper extension, denser sub-bass rumble, and an even more visceral slam, all while retaining the tightness and speed that made the original a stage favorite. The upgraded chamber architecture ensures clean layering and separation, preventing bass bleed and keeping your mids intact.
Designed for bassheads, live performers, and studio professionals who crave maximum low-end authority — this is bass, evolved.
ASCENDIUM
Transcending Clarity. Tempered in Truth.
Every Grand Maestro Anniversary Founders’ Edition is accompanied by ASCENDIUM — a bespoke cable born from EFFECT AUDIO’s vault of flagship-grade materials, each material personally curated by Suyang to unlock the IEM’s full potential.
Drawn from 16 years of cable-making expertise, ASCENDIUM features Palladium-Plated Silver—EA’s final reserve material, used only for limited editions—together with Gold-Plated Silver and rare noble alloys. With its mythic composition and unwavering precision, each strand channels the voice of the gods: thunderous dynamics, celestial clarity, and a harmonic richness that breathes soul into silence, awakening hidden dimensions within your music.
The custom Y-split design takes inspiration from a Maestro’s Scepter — a symbol of command and artistry. Its sculpted form, finished in a matching Champagne Gold colour, pairs mirror-polished edges with a satin center, creating a striking play of light and shadow. At its heart, a titanium-black recess adds depth and dimension, elevating the design into a statement of regal precision. This bold black–gold pairing encapsulates the philosophy of power refined through craft, mirroring the dedication poured into every detail of this 200-unit limited edition.
Founders' Edition Exhibition Case
Each of the 200 Grand Maestro Anniversary Founders’ Editions arrives in a handcrafted wooden box — meticulously polished and finished with ten layers of piano lacquer, the same refined gloss found on high-end acoustic instruments. Its surface gleams with depth and resonance, much like the sound it holds within.
Open the lid to reveal the titanium earpieces, the ASCENDIUM cable, and the leather carrying case — all elegantly framed in soft velvet.
Blending art with meticulous craftsmanship, this presentation completes the luxurious experience of the GMA FE — a privilege reserved for only 200 owners worldwide.
WHAT IS IN THE BOX
Grand Maestro Anniversary Founders’ Edition IEM
ASCENDIUM cable
NOAH Modules
- Champagne Gold Superstage Modules (Founders' Edition)
- Champagne Gold 'Control' Modules (Founders' Edition)
- Silver 'Reference' Modules (Limited Edition)
- Black 'Power' Modules
Adjustable Bass Impedance Adapter
EFFECT AUDIO x FATfreq Founders’ Edition Leather Carrying Case
ConX® Full Set
EFFECT AUDIO Cleaning Tool & Microfiber Cloth
Ear Tips - SS, S, M, L, LL
Cable Tie
Warranty Card
Owner’s Manual
Specification
IEM Technical Specifications
Drivers
· 2nd Generation Tribrid Technology
· Dual Isobaric Dynamic Driver
· Quad EST with ResoFlow
· Titanium Chassis
Crossover
· 4- Way Crossover System
Frequency Response
· 20Hz~ 40kHz
Sensitivity
· 97dB @100mV @1kHz
Impedance
· 10 Ohms@1kHz
Cable Technical Specifications
Spec: 24 AWG 8 Wires
Smelting Process: UP-OCC
Casing: EA UltraFlexi™ Insulation
Length: 120cm ± 5cm
Material:
· Final Reserve Palladium-Plated Silver
· Exquisite Rarity Palladium-Silver Alloy
· Industry First Gold-Plated Gold-Silver Alloy
· Timeless Legacy Gold-Plated Silver
· Celestial Crystal Pure Silver with Central Solid Core
Structure:
· Central Solid Core
· Multi-sized Core Bundle
Connection System:
· ConX Full Set Interchangeable Connector
· Pentaconn OFC 4.4mm Termination
