Fosi Audio Carbon12 World's First UTPT™ Pure Carbon IEM
Features
- UTPT™ Pure Carbon Diaphragm
- Dual-Chamber Dynamic Driver
- 7.5g Comfortable Fit
- 7.5g Comfortable Fit
12mm Ultra-Thin Pure Carbon Diaphragm
Carbon fiber is used in aerospace and F1 for strength and low weight. Carbon12 is the World’s first IEM with UTPT™ technology, creating a thinner, rigid diaphragm for fast transients and precise frequency response.
TC4 Titanium Shell & Forged Carbon Fiber Faceplate
The rigid TC4 titanium shell suppresses vibrations for purer sound and offers higher hardness than pure titanium for better scratch resistance. The carbon fiber faceplate gives each Carbon12 a unique look.
7.5g Lightweight IEM Fit
At just 7.5g per earbud, Carbon12 features a rounded ergonomic chamber that follows your ear's contours. Its lightweight design helps provide comfortable wear for extended listening, ideal for audiophiles.
Unique Front & Rear Chamber Acoustic Design
An open front chamber reduces the plugged-up feel of IEMs for a wider, more natural soundstage. Rear damping foam absorbs standing waves and reflections for cleaner sound.
Detachable Cable & Sound Tuning
Four-core silver-plated OFC cable is tuned for Carbon12 to reveal fine details. The included 3.5mm cable has detachable 0.78mm 2-pin connectors for 4.4mm balanced upgrades. Tuning filters let you fine-tune sound.
Fast, Free Shipping!
Free Shipping In 3-7 Days On Orders
2-Years Official Warranty
Fosi Audio Devices Are Covered For A Period Of 2 Years
30 Day Money-Back Guarantee
Full Refund Available Via Return In 30 Day
Exceptional Transient Response
Pure Carbon Diaphragm
Widely used in aerospace and Formula 1, carbon fiber combines exceptional strength with low mass. Fosi Audio’s proprietary UTPT™ technology overcomes traditional thickness limitations, creating an ultra-thin carbon diaphragm with metal-like rigidity for faster transients and more accurate frequency response.
UTPT™
Ultra Thin Ply Technology
Easy to Drive
Great Sound
Dual-Chamber Dynamic Driver
A low-distortion driver (THD ≤0.5% @1kHz) and precisely tuned dual-chamber design deliver a wide frequency response and spacious soundstage. Dedicated rear-chamber damping foam absorbs standing waves for cleaner sound.
Easy to Drive, Great Sound
With 37Ω impedance and 108dB sensitivity, Carbon 12 is easily driven by a dongle DAC or portable digital player, delivering high-quality sound wherever you go.
Warm, Full-Bodied Tuning
Carbon 12 delivers a natural, balanced sound with both accuracy and emotion. Fast transients and excellent detail meet slightly forward mids, creating rich, textured vocals ideal for pop and vocal-focused music.
Carbon Fiber Meets Titanium
The carbon fiber faceplate minimizes unwanted resonance between the housing and driver for cleaner sound. Crafted through layering, stamping, temperature control, forging, and CNC machining, each piece reveals a unique natural pattern.
Dual-Chamber Construction
Silver-Plated OFC Cable
Specially tuned for Carbon 12, the four-strand braided cable uses high-purity silver-plated oxygen-free copper for clean, low-resistance signal transmission that preserves every detail.
Explore More Sound Possibilities
Triple-tunable ear tips in three sizes adapt to your ear shape, letting you pick the bass response you like best.
Nozzle Tuning Foams
Includes low-, medium-, and high-density nozzle tuning foams, easily replaceable with the included tweezers. Higher density softens the upper treble, while lower density adds more brightness.
Product Specification
Driver 12mm Dynamic Driver with UTPT™ Thin-Ply Carbon Diaphragm
Housing Material TC4 Titanium Alloy with Carbon Fiber Faceplate
Frequency Response 20Hz–40kHz
Impedance 37Ω
Sensitivity 108dB/Vrms @1kHz
THD ≤0.5% @1kHz
Weight (Per Earbud) 7.5g
Cable 2-Pin 0.78mm Silver-Plated Oxygen-Free Copper Cable
