Wired IEMs
Cozoy D2
81Outstanding
$55
Full review dataCozoy D2 vs TWISTURA SIGMA: which should you buy?
On aggregated review scores the Cozoy D2 comes out ahead with a HearWiki score of 81. The full breakdown - sub-scores, specs and what reviewers actually said - is below.
Our pick: Cozoy D2 - Outstanding overall at around $55.
Wired IEMs
TWISTURA SIGMA
77Great
$66
Full review dataScore breakdown
Each axis is a 0–10 blend of what reviewers scored, not a lab measurement.
Cozoy D2 leads on 4 of 4 measures.
- Cozoy D2
- TWISTURA SIGMA
HearWiki score
81
77
Sound
8.5
7.7
Value
9.0
8.2
Price (USD)
$55
$66
Generation & platform
The scores rank quality. This is the other question: is the newer one actually newer technology, or the same platform in a new shell?
Same generation
Cozoy D2 (2026) against TWISTURA SIGMA (2025). These are the same generation of hardware - nothing in the radio, the codecs or the noise cancelling separates them. Nothing separates them on convenience features either, so the choice comes down to tuning and price.
- D220261 yr newer
- SIGMA2025
Specifications
D2SIGMA
- Type
- Wired IEMs
- Wired IEMs
- Price (USD)
- $55
- $66
- HearWiki score
- 81
- 77
- Released
- 2026
- 2025
- Availability
- Sold new
- Sold new
- Driver
- 2DD
- 1DD + 1BA hybrid
- Driver type
- dynamic
- hybrid
- Driver configuration
- 2DD
- 1DD + 1BA
- Driver size
- -
- 6 mm
- Drivers per side
- 2
- 2
- Impedance
- 20 Ω
- 26 Ω
- Connector
- 2-pin 0.78 mm
- 2-pin 0.78 mm
What reviewers said
Cozoy D2
The Cozoy D2 is a budget-friendly wired IEM that pairs a 6 mm beryllium driver with a 10 mm graphene-composite driver for a dual-dynamic setup. It offers a flexible connection via a 2-pin 0.78 mm cable that includes swappable 3.5 mm and 4.4 mm plugs, catering to both standard and balanced sources. With a 20-ohm impedance, it's easy to drive from most devices.
- Pro:Dual-driver hybrid design for detailed sound
- Pro:Interchangeable 3.5 mm and 4.4 mm plugs
- Pro:Low impedance (20 ohms) for easy pairing
- Con:No active noise cancellation
- Con:Wired only, limiting portability
- Con:Budget build may not suit all users
TWISTURA SIGMA
A compact wired hybrid IEM that pairs a 6 mm LCP dynamic driver with a custom balanced-armature driver for detailed mids and highs. It includes a USB-C DAC adapter for easy use with phones and other modern devices, making it a versatile budget option for portable listening.
- Pro:Detailed and clear midrange and treble
- Pro:Compact, lightweight design
- Pro:Comes with USB-C DAC adapter
- Con:No active noise cancellation
- Con:Requires a source with enough power for best performance
- Con:Stock cable may be stiff or tangle-prone
Summaries are AI-condensed and paraphrased from published reviews and specs - not original hands-on testing. More on our method.
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