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KZ ZSX Pro specifications and in-depth review

KZ ZSX Pro

Manufacturer: KZ Audio

The KZ ZSX Pro is an in-ear monitor built around a hybrid driver setup, combining a dynamic driver with five balanced armature units within a 3D-printed resin shell. The result is a total of six drivers per earpiece, a configuration that reflects a clear focus on driver density within a compact form factor. The cable is detachable, which adds a degree of practical flexibility for users who may want to swap or replace it over time.

On the technical side, the KZ ZSX Pro presents an impedance of 24 Ohms, making it reasonably compatible with a range of portable sources. The included cable measures 1.2 meters in length and is constructed from silver-plated copper, connecting to the earpieces via a 2-pin (0.75 mm) socket and terminating in a standard 3.5 mm connector. The unit does not include a built-in microphone, an in-line control panel, or a travel bag.

Pros
  • The detachable cable allows for easy replacement or swapping without affecting the earpieces
  • Silver-plated copper cable material is a step above basic copper wiring in terms of conductivity
  • The hybrid driver layout combining one dynamic driver and five balanced armature units offers a technically complex internal configuration
  • The 3D-printed resin shell allows for a more precisely shaped and lightweight housing compared to standard molded plastics
  • At 24 Ohms impedance, the earphones can be driven directly from typical portable devices without requiring additional amplification
  • The 2-pin 0.75 mm socket is a widely used standard, making cable replacements straightforward to source
Cons
  • No built-in microphone means the earphones cannot be used for calls or voice input without a separate solution
  • The absence of an in-line control panel removes the ability to adjust volume or manage playback directly from the cable
  • No travel bag is included, leaving users to source their own storage solution for transport and protection
Who is this for?

The KZ ZSX Pro is well suited to listeners who want a technically complex hybrid driver setup in a compact in-ear form factor, particularly those who already own compatible 3.5 mm sources such as dedicated audio players or headphone amplifiers. The detachable 2-pin cable makes it a practical choice for users who prefer the flexibility to swap cables over time, while the 24 Ohm impedance means it can be comfortably driven by most portable devices without additional hardware. The 3D-printed resin shell also makes it a reasonable fit for those who prioritize a lightweight and precisely shaped housing during extended listening sessions.

Who is this NOT for?

This product is not well suited to users who need hands-free or voice call functionality, as it lacks both a built-in microphone and an in-line control panel, making it impractical for communication or on-the-go playback management. Those who frequently travel or carry their earphones loosely may also find the lack of an included storage solution inconvenient. Additionally, users who rely on wireless connectivity or digital audio interfaces will find the 3.5 mm wired-only connection limiting if their primary devices have moved away from the traditional headphone jack.

General info:

Driver configuration 1DD + 5BA
Type of drivers Dynamic driver (DD), Balanced armature (BA)
Shell material/process 3D-printed resin
has a built-in microphone ✕
travel bag is included ✕
Has an in-line control panel ✕

The KZ ZSX Pro uses a hybrid driver configuration of 1 dynamic driver and 5 balanced armature units, housed in a shell made from 3D-printed resin. This combination of driver types is a defining characteristic of the earphone's internal layout. The unit does not feature a built-in microphone, an in-line control panel, or an included travel bag.

Specifications:

drivers count 6
impedance 24 Ohms

The KZ ZSX Pro carries a total of 6 drivers across its hybrid configuration, reflecting a relatively high driver count for its category. Its impedance is rated at 24 Ohms, a figure that places it within a range generally suited to everyday portable playback devices.

Cable:

Connector type 3.5 mm
Pin connector 2-Pin (0.75 mm)
Cable material Silver-plated copper (SPC)
cable length 1.2 m
has a detachable cable ✓

The KZ ZSX Pro comes with a detachable cable made from silver-plated copper (SPC), measuring 1.2 meters in length. It connects to the earpieces via a 2-pin (0.75 mm) socket and terminates in a standard 3.5 mm connector, making it compatible with a wide range of common audio sources.

Final Verdict

The KZ ZSX Pro is a wired in-ear monitor that makes a clear statement with its six-driver hybrid configuration — combining a dynamic driver with five balanced armature units inside a 3D-printed resin shell. The detachable silver-plated copper cable and widely compatible 24 Ohm impedance add a layer of practical usability that complements the internal complexity. That said, the absence of a microphone, in-line controls, and any bundled storage solution means it is purpose-built for focused listening rather than versatile everyday use. For users whose primary interest lies in a technically layered in-ear monitor driven from a standard 3.5 mm source, the KZ ZSX Pro represents a well-defined and coherent option within its category.