Introduction
The JCALLY TC30 Pro is a high-fidelity earphone upgrade cable designed to enhance your audio experience. Featuring 8-core silver-plated OFC (Oxygen-Free Copper) coils and an integrated Synaptics CX31993 DAC chip, it delivers superior sound quality with low distortion. This cable is equipped with a Type-C connector and is available with various earphone connector types (2Pin 0.78mm, MMCX, QDC) to ensure broad compatibility with a range of in-ear monitors.
Figure 1: JCALLY TC30 Pro Earphone Upgrade Cable
Setup
-
Identify Earphone Connector Type: Determine whether your earphones use 2Pin 0.78mm, MMCX, or QDC connectors. The TC30 Pro cable is available in these three variants.
Figure 2: Available Earphone Connector Types
- Connect to Earphones: Carefully align the cable's earphone connectors with the corresponding ports on your in-ear monitors. Ensure a firm and secure connection. For 2Pin connectors, observe the polarity (usually indicated by L/R markings or a dot/line).
-
Connect to Device: Insert the Type-C plug of the cable into the Type-C port of your audio source device (e.g., smartphone, tablet, laptop).
Figure 3: Type-C Metal Plug
-
Wear Earphones: Position the earphones in your ears. The cable features an 'Around The Ear Neck Hang Design' for comfortable and secure wearing. Adjust the cable behind your ears for optimal fit.
Figure 4: Around The Ear Neck Hang Design
Operating
The JCALLY TC30 Pro cable includes an inline remote with three buttons and a microphone for convenient control of your audio and calls.
Figure 5: Inline 3-Button Control
- Play/Pause: Press the middle button once to play or pause audio.
- Next Track: Press the middle button twice quickly to skip to the next track.
- Previous Track: Press the middle button three times quickly to go to the previous track.
- Volume Up: Press the '+' button to increase volume.
- Volume Down: Press the '-' button to decrease volume.
- Answer/End Call: Press the middle button once to answer an incoming call or end an active call.
- Reject Call: Press and hold the middle button to reject an incoming call.
- Microphone: The integrated microphone allows for clear voice communication during calls or voice recordings.
Maintenance
- Cleaning: Use a soft, dry cloth to wipe the cable and connectors. Avoid using harsh chemicals or abrasive materials.
- Storage: When not in use, coil the cable loosely and store it in a clean, dry place away from direct sunlight and extreme temperatures. Avoid sharp bends or kinks.
- Handling: Always grasp the plug when connecting or disconnecting the cable, rather than pulling on the cable itself, to prevent damage to the wiring.
- Moisture: Keep the cable away from water and excessive moisture. If it gets wet, dry it thoroughly before use.
Troubleshooting
- No Sound or Intermittent Audio:
-
- Ensure both the earphone connectors and the Type-C plug are fully and securely inserted.
- Check the volume settings on your audio source device.
- Test the cable with a different pair of earphones or a different audio source device to isolate the issue.
- Verify that your device's operating system is up to date, as some DACs require specific driver support.
- Microphone Not Working:
-
- Ensure the microphone is not obstructed.
- Check your device's privacy settings to ensure microphone access is granted to the relevant applications.
- Confirm that your device supports inline microphone functionality with Type-C audio accessories.
- Remote Control Buttons Not Responding:
-
- Ensure the cable is fully connected to both the earphones and the audio source.
- Some older devices or specific operating systems may have limited support for inline remote functions. Refer to your device's manual for compatibility.
Specifications
Figure 6: Product Specifications
| Feature | Detail |
|---|---|
| Brand | JCALLY |
| Model | TC30 Pro |
| Item Type | HIFI Earphone Upgrade Cable |
| PCM | 32bits 384KHz |
| Output Voltage | 32Ω@31.25mW |
| SNR (Signal-to-Noise Ratio) | 117dB |
| THD+N (Total Harmonic Distortion + Noise) | -95dB |
| Crosstalk | -53dB |
| Connectors | QDC, 0.78mm (2Pin), MMCX |
| Length | 1200mm ± 50mm |
| Weight | 22g |
| Color | Silver |
| Core Material | 8-core 5N OFC 0.4u Pure Silver Plated Copper |
| Wire Material | Special PVC |
| DAC Chip | Synaptics CX31993 |
| Plug Type | USB Type-C (USB TID Certified) |
| Product Certification | ROHS |
Compatibility
The JCALLY TC30 Pro cable is designed for wide compatibility with various devices and earphones. It supports a range of smartphones and tablets with a Type-C audio output. A detailed compatibility list is available, showing tested devices from brands like HUAWEI, XIAOMI, REDMI, SAMSUNG, OPPO, VIVO, IQOO, ONEPLUS, Google Pixel, Apple (iPad Pro models), Sony, and Nokia. Functionality such as microphone, record, phone call, WeChat call, pause/play, and volume control are indicated for each device.
Figure 7: Compatibility List Excerpt
Note: While many Xiaomi devices are compatible, for Apple devices, only iPad Pro models with Type-C ports are explicitly listed. Newer iPhones (iPhone 15 series and later) with Type-C ports should also be compatible.
User Tips
- For optimal sound quality, ensure your audio source device's volume is set appropriately before adjusting with the inline controls.
- If experiencing issues with a specific device, check for any available software updates for your device's operating system.
- Always store the cable neatly to prevent tangling and prolong its lifespan.
Warranty and Support
For warranty information, technical support, or service inquiries, please refer to the seller's official website or contact their customer service directly. Keep your purchase receipt as proof of purchase.
