Cozoy D2 vs KZ AS16 Pro: 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

Cozoy D2

81Outstanding

$55

Full review data

Wired IEMs

Score 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
KZ AS16 Pro

HearWiki score

Sound

8.5

6.7

Value

9.0

7.4

Price (USD)

$55

$62

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
AS16 Pro2024

Specifications

D2AS16 Pro

Type: Wired IEMs; Wired IEMs
Price (USD): $55; $62
HearWiki score: 81; 68
Released: 2026; 2024
Availability: Sold new; Still sold new
Driver: 2DD; 16× balanced armature
Driver type: dynamic; balanced-armature
Driver configuration: 2DD; -
Drivers per side: 2; 16
Frequency response: -; 20 Hz - 40 kHz
Impedance: 20 Ω; 18 Ω
Sensitivity: -; 114 dB/mW
Active noise cancelling: -; No
ANC type: -; none
Transparency mode: -; No
Companion app: -; No
Custom EQ: -; No
Wear detection: -; No
Controls: -; none
Voice assistant: -; No
Water resistance: -; none
Foldable: -; No
Detachable cable: -; Yes
USB-C: -; No
Connector: 2-pin 0.78 mm; 3.5 mm
Call noise reduction: -; No

Specification comparison of Cozoy D2 vs KZ AS16 Pro
Spec	Cozoy D2	KZ AS16 Pro
Type	Wired IEMs	Wired IEMs
Price (USD)	$55	$62
HearWiki score	81 / 100 Outstanding	68 / 100 Good
Released	2026	2024
Audio
Driver	2DD	16× balanced armature
Driver type	dynamic	balanced-armature
Driver configuration	2DD	-
Drivers per side	2	16
Frequency response	-	20 Hz - 40 kHz
Impedance	20 Ω	18 Ω
Sensitivity	-	114 dB/mW
Features
Active noise cancelling	-	No
ANC type	-	none
Transparency mode	-	No
Companion app	-	No
Custom EQ	-	No
Wear detection	-	No
Controls	-	none
Voice assistant	-	No
Design
Water resistance	-	none
Foldable	-	No
Detachable cable	-	Yes
USB-C	-	No
Connector	2-pin 0.78 mm	3.5 mm
Calls
Call noise reduction	-	No

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

KZ AS16 Pro

The KZ AS16 Pro is a wired in-ear monitor packing 16 balanced armature drivers per side, delivering a bass-forward yet controlled sound with good passive isolation. It's easy to drive from most sources, offering solid detail and clarity for its modest price, though its bulky shells and rolled-off treble may not suit everyone.

Pro:Powerful, controlled bass response
Pro:Excellent detail retrieval for the price
Pro:Easy to drive from any source

Con:Bulky, less comfortable shell design
Con:Rolled-off and somewhat dull treble
Con:Mediocre cable quality

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 comparison Cozoy D2 KZ AS16 Pro