1. Introduction
The KZ ZAX In-Ear Monitor Headphones are designed for high-fidelity audio reproduction, featuring a hybrid driver configuration for a balanced sound profile. These monitors are crafted with a durable zinc alloy shell and come with a detachable silver-plated cable, ensuring both performance and longevity.
Key features include:
- Hybrid Driver Technology: Equipped with 1 dynamic driver and 7 balanced armature drivers per earphone, totaling 16 drivers for detailed sound across the frequency spectrum.
- Premium Construction: The zinc alloy shell features a pearl chrome plating, designed to resist oxidation and maintain its aesthetic appeal over time.
- High-Purity Cable: Includes a standard high-purity silver-plated oxygen-free copper cable with a 4-strand, 25-core design to minimize distortion and ensure clear audio transmission.
- Advanced Dynamic Unit: Features a dual magnetic circuit composite dynamic unit with a 10mm PEK spring diaphragm for powerful and precise bass response.
- Optimized Balanced Armature Combination: A specially developed 50024 BA combination effectively covers the medium and high-frequency ranges, enhancing vocal clarity and treble detail.
2. Package Contents
Please check the package for the following items:
- KZ ZAX In-Ear Monitor Headphones (1 pair)
- Detachable 2-pin 0.75mm Silver-Plated Cable (1)
- Silicone Ear Tips (various sizes)
- User Manual (this document)

Image: Contents of the KZ ZAX In-Ear Monitor Headphones package, showing the earphones, detachable cable, and multiple sets of silicone ear tips.
3. Setup Instructions
3.1. Attaching the Cable
- Identify the left (L) and right (R) earpieces and the corresponding connectors on the detachable cable. The cable connectors are typically marked with 'L' and 'R'.
- Align the 2-pin connector on the cable with the receptacle on the earpiece. Ensure the pins are correctly oriented.
- Gently push the cable connector into the earpiece until it is securely seated. Do not force the connection.
- Repeat for the other earpiece.
3.2. Selecting and Installing Ear Tips
Proper ear tip selection is crucial for sound quality and comfort. Experiment with the included ear tip sizes to find the best fit for your ears. A good seal provides optimal bass response and noise isolation.
- Gently remove the pre-installed ear tips (if any) by twisting and pulling them off the nozzle.
- Select a pair of ear tips that feel comfortable and create a good seal in your ear canal.
- Push the chosen ear tip onto the nozzle of the earpiece, ensuring it is fully seated and secure.
3.3. Wearing the Earphones
The KZ ZAX earphones are designed to be worn with the cable looped over the ear for a secure and comfortable fit.
- Insert the earpiece into your ear canal.
- Guide the cable over the top of your ear, allowing it to rest comfortably behind your ear.
- Adjust the earpiece and cable until you achieve a snug fit and the cable is not pulling on your ear.

Image: A person demonstrating the correct way to wear the KZ ZAX in-ear monitors, with the cable routed over the ear for stability.
4. Operating Instructions
4.1. Connecting to an Audio Source
The KZ ZAX earphones connect to audio devices via a standard 3.5mm jack.
- Plug the 3.5mm jack of the cable into the headphone output of your audio device (e.g., smartphone, digital audio player, amplifier).
- Ensure the connection is firm.
4.2. Listening to Audio
- Start audio playback on your connected device.
- Adjust the volume on your audio device to a comfortable listening level. Avoid excessively high volumes to prevent hearing damage.
5. Maintenance
5.1. Cleaning the Earphones and Ear Tips
- Regularly clean the ear tips with a soft, damp cloth to remove earwax and debris. Ensure ear tips are completely dry before reattaching.
- Use a dry, soft cloth to wipe down the earpiece shells and cable. Avoid using harsh chemicals or abrasive materials.
- Periodically check the earpiece nozzles for any obstructions and gently clear them with a small, soft brush if necessary.
5.2. Cable Care
- Avoid sharply bending or twisting the cable, especially near the connectors, to prevent internal damage.
- When disconnecting the cable from the earpieces, grasp the connector housing, not the cable itself.
5.3. Storage
When not in use, store your KZ ZAX earphones in a clean, dry place, preferably in a protective case, to prevent damage from dust, moisture, and physical impact.
6. Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| No sound or intermittent sound |
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| Poor sound quality (e.g., weak bass, muffled sound) |
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| Earphones fall out easily |
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7. Specifications
| Brand | KZ (G.K) |
| Model Name | KZ-ZAX |
| Ear Placement | In Ear |
| Form Factor | In Ear |
| Impedance | 24 Ohms |
| Frequency Response | 10 Hz - 40 kHz |
| Sensitivity | 113 dB |
| Audio Driver Type | Hybrid Driver (1 Dynamic + 7 Balanced Armature) |
| Connectivity Technology | Wired (3.5mm Jack) |
| Cable Type | Detachable 2-pin 0.75mm Silver-Plated Cable |
| Noise Control | Sound Isolation |
| Enclosure Material | Metal (Zinc Alloy) |
| Item Weight | 27 Grams |

Image: Frequency response curve illustrating the audio performance of the KZ ZAX earphones across different frequencies.

Image: Exploded view diagram detailing the 1 dynamic and 7 balanced armature drivers, sound filter, metal nozzle, and ear tips within the KZ ZAX earphone.

Image: Detailed view of the reconstructed acoustic cavity structure of the KZ ZAX earphones, highlighting their internal design.
8. Warranty and Support
For warranty information and customer support, please refer to the documentation provided with your purchase or contact the retailer/manufacturer directly. Keep your proof of purchase for any warranty claims.