IAMSOUND presents the F#4 Drone Expansion Pack in 432 Hz — Modular Kit System
This modular kit allows you to expand and reconfigure your original F#4 Drone Flute in 432 Hz, unlocking new airflow, feel, and playing possibilities within the F#4 ecosystem.
Important Note: Must have the original / v1 F#4 Drone Flute in 432 Hz to go with this!
This expansion pack is designed to match the original F#4 Drone Flute design, preserving the sound, tuning, and playing experience you already know while adding modular flexibility.
This expansion pack includes three F#4 extension modules (C#4, D4, E4) along with a dedicated organizer / storage stand, making it easy to swap configurations and keep your parts clean and protected between sessions.
Think of this kit as the door unlock to the F#4 modular system—transforming your single flute into a flexible, reconfigurable instrument without changing its tonal character.
If you’re interested in the 440 Hz Expansion Pack, click here.
⚠️ Compatibility (Please Read)
This expansion pack is designed for the original F#4 Drone Flute in 432 Hz.
This expansion pack is not interchangeable with:
Each expansion pack is tuned to a specific frequency and built to match a specific flute design. Please choose carefully to ensure proper compatibility.
If you’re looking for easier modular removal and reattachment, we recommend the F#4 Drone Flute 432 Hz v2 and its corresponding expansion packs, which feature an updated connector design.
To see our complete collection of F#4 Drone Expansion Packs, click here.
What’s Included
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3 × F#4 Extension Modules (v1 432 Hz)
(C#4, D4, E4)
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Organizer / Storage Stand for clean storage and fast swapping
Features
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Tuned to 432 Hz
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Designed for the original F#4 Drone system
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Modular expansion kit (not an accessory)
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Made from eco-friendly materials
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Includes organizer stand for clean storage and easy transport
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Limited inventory — check back often for restocks and new colors
Disassembly / Assembly Notes
Please disassemble with care if doing so for portability:
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Slowly wiggle the joints while pulling — do not force
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When reassembling, follow the numbering sequence
We recommend:
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Connecting pieces part-way by hand
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Using a hard floor surface (with rug or carpet)
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Gently tapping pieces into place until they lock
(A rubber mallet works great if needed)
This design ensures the airways remain tightly sealed for optimal sound.
