Introduction
This manual provides detailed instructions for the FiiO FD15 13.8mm Magnalium DLC HiFi Dynamic Driver in-Ear Earphones. It covers product features, setup, operation, maintenance, and troubleshooting to ensure optimal performance and longevity of your device. Please read this manual thoroughly before using the earphones.
Image: FiiO FD15 in-ear earphones with their detachable cable connected.
Product Overview and Key Features
The FiiO FD15 earphones are engineered for high-fidelity audio reproduction, incorporating advanced acoustic technologies and robust materials. Key features include:
- 13.8mm Magnalium DLC Dynamic Driver: Features a magnesium-aluminum alloy dome with DLC (Diamond-Like Carbon) suspension for enhanced high-frequency extension and resolution, delivering transparent and delicate sound.
- F.T.B.S "Tesla Valve" Low-Frequency Loading Technology: Utilizes advanced powder metallurgy for precise acoustic design, significantly enhancing deep and resonant bass response.
- W-shaped Independent Suspension Design: Increases the effective vibrating area by 30% compared to conventional designs, allowing the acoustic unit to store more sound energy for a dense and grounded auditory experience.
- High-Quality Cable: Comes standard with a Furukawa single crystal copper and silver-plated copper braided cable (22AWG cross-sectional area) for superior signal transmission.
- Detachable MMCX Cable: Offers flexibility with swappable 3.5mm and 4.4mm audio plugs.
- Durable Construction: Features a 316L stainless steel shell for longevity and premium feel.
Video: An overview of the FiiO FD15 HiFi Dynamic In-Ear Earphones, highlighting key features and design elements.
Image: Diagram illustrating the Magnalium diaphragm, DLC gasket driver, W-shaped gasket, and frontal acoustic prism for high-frequency performance.
Image: Diagram detailing the voice coil, external magnet design, and 13.8mm large dynamic driver for mid-range vocals.
Image: Diagram showcasing the "Tesla Valve" patented bass enhancement acoustic technology for deep bass reproduction.
What's in the Box
The FiiO FD15 package includes the following components:
- Earphones (1 pair)
- Earphone cable (1)
- Balanced eartips (S/M/L*3 pairs, M pre-installed)
- Vocal eartips (S/M/L*3 pairs)
- Bass eartips (S/M/L*3 pairs)
- Foam eartips (M*2 pairs)
- HS18 eartips (S/M/L*3 pairs)
- Storage case HB11 (1)
- MMCX quick release tool (1)
- Cleaning brush (1)
- 3.5/4.4mm swappable plugs (1 set)
- Red/Black swappable sound nozzles (2 pairs)
- Quick start guide (1)
Image: Visual representation of all included parts and accessories for the FiiO FD15 earphones.
Setup
Follow these steps to set up your FiiO FD15 earphones:
- Attach the Cable: Carefully align the MMCX connector on the cable with the port on each earphone. Push firmly until you feel a click. Ensure the left (blue ring) and right (red ring) channels match the respective earphone units.
- Select Eartips: Choose the eartips that provide the best seal and comfort for your ears. Experiment with the various types (balanced, vocal, bass, foam, HS18) and sizes (S, M, L) provided. A proper seal is crucial for optimal sound quality and bass response.
- Install Eartips: Gently push the selected eartip onto the earphone nozzle until it is securely seated.
- Choose Audio Plug: The cable features swappable 3.5mm and 4.4mm audio plugs. Select the plug compatible with your audio source and attach it to the cable.
Image: Detailed view of the Furukawa braided cable, swappable audio plugs (3.5mm and 4.4mm), and expanded MMCX connector.
Operating Instructions
To use your FiiO FD15 earphones:
- Wearing the Earphones: Insert the earphones into your ear canals. The cable is designed to loop over the top of your ear for a secure and comfortable fit. Adjust the cable and earphones until they feel stable and provide a good seal.
- Connect to Audio Source: Plug the chosen audio connector (3.5mm or 4.4mm) into your compatible device (e.g., smartphone, digital audio player, amplifier).
- Playback Control: If your cable includes an inline remote (Media Control), use it to play/pause music, skip tracks, or answer/end calls. Refer to your audio source device's manual for specific compatibility and functions.
- Volume Adjustment: Adjust the volume using your audio source device. Start with a low volume and gradually increase it to a comfortable listening level.
Maintenance
Proper maintenance ensures the longevity and performance of your earphones:
- Cleaning Eartips: Regularly remove and clean the eartips with a soft, damp cloth. For silicone eartips, you can rinse them with mild soap and water, then dry thoroughly before reattaching.
- Cleaning Earphone Nozzles: Use the provided cleaning brush to gently remove any earwax or debris from the earphone nozzles. Avoid using sharp objects.
- Cable Care: Handle the cable gently. Avoid sharp bends, excessive pulling, or tangling. When not in use, coil the cable loosely and store it in the provided storage case.
- Storage: Store the earphones in the HB11 storage case when not in use to protect them from dust, moisture, and physical damage.
- Avoid Moisture: The earphones are not water-resistant. Avoid exposure to water, sweat, or high humidity.
Troubleshooting
If you encounter issues with your FiiO FD15 earphones, refer to the following common problems and solutions:
| Problem | Possible Cause | Solution |
|---|---|---|
| No sound or intermittent sound | Loose cable connection, incorrect audio source selection, low volume, dirty audio jack. | Ensure MMCX connectors are fully seated. Check audio source output settings. Increase volume. Clean audio jack on device. Try a different audio source. |
| Poor sound quality (e.g., weak bass, muffled sound) | Improper eartip seal, dirty nozzles, damaged cable. | Try different eartip sizes/types to achieve a better seal. Clean earphone nozzles. Inspect cable for damage; replace if necessary. |
| Earphones feel uncomfortable or fall out easily | Incorrect eartip size/type, improper wearing. | Experiment with different eartips for a more secure and comfortable fit. Ensure the cable is looped over your ear correctly. |
| Remote control not working | Incompatibility with device, cable damage. | Check device compatibility with inline remote controls. Ensure cable is securely connected. |
Specifications
Detailed technical specifications for the FiiO FD15 earphones:
- Model Name: FD15
- Ear Placement: In Ear
- Form Factor: In Ear
- Connectivity Technology: Wired
- Headphones Jack: 3.5 mm Jack (swappable with 4.4mm plug)
- Audio Driver Type: Dynamic Driver
- Audio Driver Size: 13.8 Millimeters
- Impedance: 32 Ohms
- Material: Stainless Steel
- Cable Feature: Detachable MMCX
- Control Type: Media Control (Remote)
- Noise Control: None
- Water Resistance Level: Not Water Resistant
- Item Weight: 0.41 Kilograms (14.4 ounces)
- Manufacturer: FiiO
- Date First Available: June 14, 2024
Warranty and Support
FiiO products are designed for reliability and performance. For warranty information, please refer to the warranty card included in your product packaging or visit the official FiiO website. If you require technical assistance or have questions not covered in this manual, please contact FiiO customer support through their official channels. Keep your proof of purchase for warranty claims.
