FDX_FAQ

Technical support for FDX

In here you could find the introduction, resources download, troubleshooting or after-sales service of FDX.

2026-08-31
1. How many drivers does the FDX have? What is the included cable?
2026-08-31
2. What are the accessories? How to choose suitable ear tips? Is the cable interchangeable?
2026-08-31
3. How to attach/detach the cable's plug of the FDX?
2026-08-31
4. How to use MMCX ASSIST tool?
2026-08-31
5. What is its sound tuning style of Zhuoning FDX?
2026-08-31
6. What are the differences between the sound tubes? And how to change it?
2026-08-31
7. How does its appearance structure improve the sound performance? (The small hole on the front cavity and the volcanic field system)
2026-08-31
8. How to distinguish between the left and right channels?
2026-09-03
9. What is the sound difference compared to the FD7?
2026-09-03
10. About the limited serial number of FDX
2026-09-03
11. Will it be easy to scratch off the earphone shell?

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How to use the MMCX assist tool? How to attach/detach the cable's plug of the FDX?

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