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Cozoy D2 vs QKZ x HBB Hades: 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.

Score breakdown

Each axis is a 0–10 blend of what reviewers scored, not a lab measurement.

Cozoy D2 leads on 3 of 4 measures.

  • Cozoy D2
  • QKZ x HBB Hades
HearWiki score
81
52
Sound
8.5
5.7
Value
9.0
-
Price (USD)
$55
$50

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

The Cozoy D2 is 2 years newer, but it is 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.

  • D220262 yr newer
  • x HBB Hades2024

Specifications

D2x HBB Hades
Type
Wired IEMs
Wired IEMs
Price (USD)
$55
$50
HearWiki score
81
52
Released
2026
2024
Availability
Sold new
Discontinued
Driver
2DD
2DD
Driver type
dynamic
dynamic
Driver configuration
2DD
2DD
Driver size
-
9 mm
Drivers per side
2
2
Impedance
20 Ω
16 Ω
Detachable cable
-
Yes
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

QKZ x HBB Hades

The QKZ x HBB Hades is a wired dual-dynamic IEM that leans heavily into a bass-forward, L-shaped sound signature, making it a niche pick for fans of deep, impactful low-end rather than a versatile all-rounder. It offers a comfortable, well-built shell with a detachable 2-pin cable, but its dark, congested tuning sacrifices midrange clarity and treble detail, and it performs best with a bit of extra amplification despite its low impedance.

  • Pro:Comfortable and secure fit with appealing shell design
  • Pro:Sturdy build quality and nice packaging
  • Pro:Easy to drive, though benefits from extra power
  • Con:Very bass-heavy tuning with noticeable bleed into mids
  • Con:Recessed mids and treble limit vocal and detail clarity
  • Con:Weak technical performance (resolution and soundstage)

Summaries are AI-condensed and paraphrased from published reviews and specs - not original hands-on testing. More on our method.

Compare something else

Swap either side out, or start again from the picker.

New comparisonCozoy D2QKZ x HBB Hades