StoreDeal.ai store
Shop
  • Deals
  • Deal checker
  • Black Friday
  • Buying guides
  • Brands
  • Stores
Travel
  • Flight deals
  • Hotel deals
Company
  • Research
  • Press
  • Use in AI assistants
  • Contact
  • deal.ai apps
Black Friday 2026
  • Walmart
  • Best Buy
  • Target
  • TVs
  • Laptops
  • Headphones
  • Apple
  • Gaming
  • Vacuums
  • Kitchen
  • Toys
  • Smartwatches
  • Tablets
  • Furniture
  • Mattresses
© Deal.ai Inc.·2222 Ponce de Leon Blvd, Miami, FL 33134·support@deal.ai
TermsPrivacy
Deal.ai › Fosi Audio
Fosi Audio
Fosi Audio Carbon12 Pure Carbon In-Ear Monitors

Fosi Audio Carbon12 Pure Carbon In-Ear Monitors

Lowest price, any size

$149.99at ListenUpChecked Nov 8

Prices differ by screen size, and this one may be for a smaller size: check the size at the store.

Prices are checked against each store and labelled with when.

Visit ListenUp

Ask our agent about this product

It checks today's price at every store, compares the alternatives and answers in about a minute.

Enter to send, Shift+Enter for a new line

Our take on the Fosi Audio Carbon12 Pure Carbon In-Ear Monitors

The Carbon12 is Fosi Audio's wired in-ear monitor built around a 12mm dynamic driver with a pure carbon diaphragm. The stiff, light diaphragm is meant to move fast and stay controlled, giving tight bass and clean instrumental detail. TC4 titanium housings and forged carbon fiber faceplates keep the shells light and sturdy. It suits listeners who want an engaging, detail-forward wired IEM for home or portable use. It competes with other single-dynamic-driver metal-shell IEMs, where the carbon diaphragm and titanium build are its main talking points.

Best forWired listening at home or on the goListeners who want tight, controlled bassBuyers who prefer a metal-shell single dynamic driverMusic fans upgrading from basic earbuds
Pros
  • 12mm pure carbon diaphragm for fast, controlled response
  • TC4 titanium alloy housings with forged carbon fiber faceplates
  • Wide 20Hz to 40kHz frequency response
  • Low distortion, rated 0.5% or less at 1kHz
  • Lightweight ergonomic shells
Cons
  • Wired only, no wireless option
  • Single dynamic driver, no hybrid or multi-driver setup
  • Needs a decent source or dongle to sound its best
  • Sound signature suits some tastes better than neutral fans

Fosi Audio Carbon12 Pure Carbon In-Ear Monitors prices at every store

  • ListenUpNew

    In stockReturn policy

    $149.99Checked Nov 8
    Visit ListenUp

About the Fosi Audio Carbon12 Pure Carbon In-Ear Monitors

The Fosi Audio Carbon12 is a pair of wired in-ear monitors built around a 12mm dynamic driver. The driver uses Fosi Audio's UTPT (Ultra Thin Ply Technology) pure carbon diaphragm. Frequency response is 20Hz to 40kHz, and total harmonic distortion is rated at 0.5% or less at 1kHz.

Each earpiece has a TC4 titanium alloy housing and a forged carbon fiber faceplate. The faceplates are made by layering, stamping, controlled heating, forging and CNC machining, so each has its own pattern. Each earpiece weighs 7.5 grams and has a rounded shell shaped to follow the contours of the ear.

The acoustic design uses two chambers. An open front chamber is meant to relieve pressure in the ear. Damping foam in the rear chamber absorbs standing waves and reflections, and a diffused pressure-relief vent balances internal pressure. The tuning is warm and full-bodied, with a slightly forward midrange.

Brand
Fosi Audio
Model
Carbon12
Type
Wired in-ear monitors (IEMs)
Driver
12mm dynamic driver with UTPT pure carbon diaphragm
Housing
TC4 titanium alloy with forged carbon fiber faceplate
Frequency response
20Hz to 40kHz
Distortion
0.5% or less THD at 1kHz
Impedance
37 ohms
Sensitivity
108dB/Vrms at 1kHz
Weight
7.5 g per earpiece
Cable
Detachable four-core silver-plated oxygen-free copper, braided
Cable connector
0.78mm 2-pin
Plug
3.5mm single-ended
Tuning options
3 ear tip styles in multiple sizes; low-, medium- and high-density nozzle foams
Included
Ear tips, nozzle tuning foams, tweezers, 3.5mm cable

Questions and answers

What driver does the Carbon12 use?
A single 12mm dynamic driver with Fosi Audio's UTPT pure carbon diaphragm. The stiff, thin diaphragm is designed for quick transients and low distortion.
What is the frequency response?
Fosi Audio rates it at 20Hz to 40kHz, with total harmonic distortion of 0.5% or less at 1kHz.
What are the shells made of?
TC4 titanium alloy housings with forged carbon fiber faceplates. They are light and rigid.
Does it need an amplifier?
It is a wired in-ear, so it works from a phone or laptop, but a dongle DAC or player will get more from it.
Is it good for bass-heavy music?
The carbon diaphragm is tuned for controlled, tight bass rather than a bloated boom, so it suits bass-heavy tracks without overpowering the mids.
What comes in the box?
The package includes the Carbon12 earphones and the cable; check the listing for the exact included accessories.
Where is the Fosi Audio Carbon12 Pure Carbon In-Ear Monitors cheapest?
At ListenUp, for $149.99, as of our latest check.

Shoppers also compared

  • S
    Shure SE215 Sound Isolating Earphones
    Shure SE215 Sound Isolating Earphones
  • S
    Sennheiser IE 100 Pro
    Sennheiser IE 100 Pro
  • A
    Audio-Technica ATH-E70
    Audio-Technica ATH-E70
  • W
    Wave Pro 2 in-ear monitors
    Wave Pro 2 in-ear monitors
  • K
    KZ ZSN PRO X Wired Earbuds
    KZ ZSN PRO X Wired Earbuds
  • K
    KZ ZSN PRO Dual Driver IEM Earphones
    KZ ZSN PRO Dual Driver IEM Earphones
  • V
    Vowen CCZ Melody In-Ear Monitors Wired Earbuds
    Vowen CCZ Melody In-Ear Monitors Wired Earbuds
  • H
    High-Fidelity In-Ear Monitor Earbuds with Bass Enhancement & Noise Isolation
    High-Fidelity In-Ear Monitor Earbuds with Bass Enhancement & Noise Isolation

More from Fosi Audio

  • F
    Fosi Audio Merak CD Player
    Fosi Audio Merak CD Player
  • F
    Fosi Audio Merak CD Player Silver
    Fosi Audio Merak CD Player Silver
  • F
    Fosi Audio DISC Nano CD Player
    Fosi Audio DISC Nano CD Player
  • F
    Fosi Audio PH04 4 Channel Headphone Amplifier
    Fosi Audio PH04 4 Channel Headphone Amplifier
  • F
    Fosi Audio ZA3 Stereo Amplifier
    Fosi Audio ZA3 Stereo Amplifier
  • F
    Fosi Audio MC331 Tube Integrated Bluetooth Amp
    Fosi Audio MC331 Tube Integrated Bluetooth Amp
F
Fosi Audio MC351 2.1 Channel Integrated Amplifier
Fosi Audio MC351 2.1 Channel Integrated Amplifier
  • F
    Fosi Audio CA30 4-Channel Amp
    Fosi Audio CA30 4-Channel Amp
  • All Fosi Audio deals and products →

    More in-ear monitors

    • K
      KZ ZSN PRO 2 in-Ear Monitor
      KZ ZSN PRO 2 in-Ear Monitor
    • K
      KZ ZS12 PRO X 12 Drivers IEM Earphones
      KZ ZS12 PRO X 12 Drivers IEM Earphones
    • Q
      QKZ Hi7T Transparent Dynamic Resin Wired Earphones
      QKZ Hi7T Transparent Dynamic Resin Wired Earphones
    • M
      MOONDROP RAYS Gaming In-Ear Monitors
      MOONDROP RAYS Gaming In-Ear Monitors
    • A
      AFUL Explorer In-Ear Monitors
      AFUL Explorer In-Ear Monitors
    • K
      KZ EDX Pro In Ear Monitor Headphones
      KZ EDX Pro In Ear Monitor Headphones
    • K
      KZ PRX HiFi Planar Magnetic Driver in-Ear Monitor
      KZ PRX HiFi Planar Magnetic Driver in-Ear Monitor
    • C
      CE110 Pro Isolating Single Driver Wired Earphones by Clear Tune Monitors
      CE110 Pro Isolating Single Driver Wired Earphones by Clear Tune Monitors