KZ ZST X BK Hybrid In-Ear Headphones – Black | 6970493060802

KZ ZST X BK Hybrid In-Ear Headphones – Black | 6970493060802

Experience detailed hybrid sound with the KZ ZST X BK, a wired in-ear monitor designed for music, gaming, personal monitoring, and everyday listening.

The ZST X combines a 10mm dual-magnetic dynamic driver with a 30095 balanced-armature driver, giving each earpiece a hybrid 1DD + 1BA configuration. The dynamic driver handles powerful lows and natural mids, while the balanced-armature unit adds clarity and detail to the higher frequencies.

A detachable 100-core high-purity silver-plated cable, ergonomic over-ear fit, 0.75mm 2-pin interface, and standard 3.5mm connection make the ZST X easy to use, maintain, and upgrade.

Key Features

Hybrid 1DD + 1BA Driver System
Each ZST X earpiece combines two different driver technologies:

• 1 × 10mm dynamic driver
• 1 × 30095 balanced-armature driver

This hybrid configuration is designed to provide energetic bass, clear vocals, and detailed high frequencies.

10mm Dual-Magnetic Dynamic Driver

The ZST X uses an upgraded 10mm dual-magnetic dynamic driver with a polymer-composite diaphragm.

It is designed to provide:

• Strong bass response
• Fast transient performance
• Natural midrange
• Punchy drums and electronic music
• Dynamic gaming effects

30095 Balanced-Armature Driver

A dedicated 30095 high-frequency balanced-armature unit handles treble detail.

Its placement toward the front of the acoustic chamber helps preserve high-frequency information and improves clarity.

This helps deliver:

• Detailed treble
• Clear vocals
• Better instrument separation
• More precise high-frequency reproduction

Dual Acoustic Tuning

The ZST X combines:

• Electronic frequency division
• Physical acoustic tuning

This approach allows the dynamic and balanced-armature drivers to work together more effectively across the audible frequency range.

100-Core Silver-Plated Cable

The included detachable cable uses 100-core high-purity silver-plated conductors.

KZ designed the upgraded cable to provide reliable signal transmission while maintaining the replaceable and upgradeable design expected from an in-ear monitor.

Detachable 0.75mm 2-Pin Interface

The ZST X uses a 0.75mm 2-pin detachable cable connection.

Benefits include:

• Easier cable replacement
• Optional cable upgrades
• Longer usable product life
• Compatibility with suitable KZ accessories
• Optional Bluetooth conversion using a compatible module sold separately

Ergonomic Over-Ear Fit

The ZST X uses an ergonomic in-ear shell with an over-ear cable route.

This design helps provide:

• Secure fit
• Comfortable extended listening
• Stable positioning during movement
• Passive isolation from surrounding sound

Specifications

20Hz–40kHz Frequency Range

The wide specified 20Hz–40kHz frequency response allows the ZST X hybrid driver system to reproduce deep bass, midrange detail, and extended high frequencies.

Actual perceived sound depends on source equipment, recording quality, ear-tip fit, and individual hearing.

Low 12Ω Impedance

With an impedance of just 12Ω and sensitivity of 107dB, the ZST X is relatively easy to drive from common portable audio sources.

It can be used with compatible:

• Smartphones with 3.5mm output
• PCs and laptops
• Gaming controllers
• Handheld consoles
• Digital audio players
• DACs
• Portable headphone amplifiers

Devices without a headphone jack require a compatible USB-C or Lightning audio adapter.

3.5mm Wired Connection

The standard 3.5mm analog plug provides broad compatibility without requiring pairing, charging, or wireless setup.

Wired connectivity also makes the ZST X suitable for applications where consistent low-latency audio is important.

Gaming Use

The combination of wired connectivity, hybrid drivers, and secure in-ear fit makes the ZST X suitable for PC, console, and handheld gaming.

Useful characteristics include:

• Low-latency wired audio
• Clear directional sound
• Strong effects and bass impact
• Detailed high frequencies
• Secure over-ear wearing style

Passive Noise Isolation

The ZST X reduces surrounding noise through its physical in-ear seal and silicone ear tips.

This is passive noise isolation.

The ZST X does not feature electronic Active Noise Cancellation (ANC).

Optional Bluetooth Conversion

The detachable cable design allows the earphones to be paired with a compatible KZ Bluetooth ear-hook or cable module sold separately.

The standard ZST X itself is a wired earphone and does not include built-in Bluetooth.

Suitable For

• Music listening
• Gaming
• In-ear monitoring
• Musicians
• Entry-level Hi-Fi users
• PCs and laptops
• Smartphones with 3.5mm audio
• Gaming controllers
• Portable music players
• Handheld gaming systems
• Everyday wired listening

Why Choose the KZ ZST X BK?

• Hybrid 1DD + 1BA design
• 10mm dual-magnetic dynamic driver
• 30095 balanced-armature driver
• Polymer-composite diaphragm
• Wide 20Hz–40kHz response
• 12Ω impedance
• 107dB sensitivity
• 100-core silver-plated cable
• Detachable 0.75mm 2-pin connection
• Standard 3.5mm gold-plated plug
• Ergonomic over-ear design
• Passive noise isolation
• No battery or charging required
• Replaceable and upgradeable cable system
• Optional Bluetooth-module compatibility
• Lightweight 22 ± 3g design
• Black finish

Package Contents

• 1 × Pair of KZ ZST X BK In-Ear Headphones – Black
• 1 × Detachable 100-Core Silver-Plated Cable
• Multiple Silicone Ear Tips
• 1 × User Documentation