1. Product Overview
The EPOS Sennheiser IMPACT SC 630 is a premium single-sided wired headset designed for professional use, offering wideband audio and an ultra noise-cancelling microphone. It features ActiveGuard technology for acoustic shock protection, ensuring clear communication and user comfort in busy environments.
Key Features:
- Premium single-sided wired headset optimized for Microsoft Lync.
- Comfortable fit designed for all-day wear with a solid sense of quality.
- Built to deliver superb sound, stunning aesthetics, and long-lasting durability.
- Ensures crisp and clear conversations for both speaker and listener, even in noisy environments.
- Crafted with high-end materials for maximum durability and design quality.

Figure 1: Front view of the EPOS Sennheiser IMPACT SC 630 headset, showing the single earcup, headband, and microphone boom.
2. What's in the Box
Your EPOS Sennheiser IMPACT SC 630 package includes the following items:
- Headset
- Quick Guide
- Safety Guide
- Leatherette Ear Pad(s)
- Protective Case
- Magnetic Holder
- Cable Clip (mounted on headset)

Figure 2: The headset with its in-line call control unit, which is part of the included components.
3. Setup Instructions
Follow these steps to set up your EPOS Sennheiser IMPACT SC 630 headset:
- Connect the Headset: Plug the 3.5 mm jack connector of the headset into the corresponding audio port on your PC or compatible device. Ensure the connection is secure.
- Adjust the Headband: Place the headset on your head. Adjust the headband by sliding it until the earcup rests comfortably over one ear and the headband is stable.
- Position the Microphone: Gently bend the microphone boom to position the microphone approximately 1-2 cm (0.4-0.8 inches) from the corner of your mouth. The microphone features ultra noise-cancelling technology, so precise positioning is important for optimal voice clarity.
- Initial Sound Check: After connecting, perform a sound check to ensure both audio output and microphone input are working correctly. Adjust volume settings on your device as needed.

Figure 3: The headset showing the flexible microphone boom, which can be rotated for optimal positioning.
4. Operating Instructions
The IMPACT SC 630 headset is designed for intuitive operation:
- Wearing the Headset: The single earcup can be worn on either the left or right ear. Rotate the microphone boom to ensure it is positioned correctly, regardless of which side the earcup is on.
- In-line Call Control: The headset features an in-line control unit for managing calls and audio. This unit typically includes buttons for:
- Answer/End Call
- Volume Up
- Volume Down
- Microphone Mute
- ActiveGuard Technology: This technology protects users from acoustic shock by instantly limiting sudden sound bursts to a safe level.
- Microphone Mute: Press the mute button on the in-line control to temporarily disable the microphone. Press again to unmute.

Figure 4: Close-up of the in-line call control unit, showing the buttons for call management and volume adjustment.
5. Maintenance
To ensure the longevity and optimal performance of your headset, follow these maintenance guidelines:
- Cleaning: Use a soft, dry cloth to clean the headset. For the leatherette ear pads, a slightly damp cloth can be used, but ensure they are completely dry before use. Do not use harsh chemicals or abrasive cleaners.
- Storage: When not in use, store the headset in its protective case to prevent dust accumulation and physical damage. Avoid storing in extreme temperatures or high humidity.
- Cable Care: Avoid sharp bends or excessive pulling on the cable. Use the provided cable clip to manage excess cable and prevent tangling.
- Ear Pad Replacement: The leatherette ear pads are replaceable. Refer to the EPOS website or contact support for replacement parts.

Figure 5: The headset with an ear pad detached, illustrating its replaceable nature for maintenance.
6. Troubleshooting
If you encounter issues with your headset, try the following solutions:
- No Sound/Low Volume:
- Ensure the 3.5 mm jack is fully inserted into the device's audio port.
- Check the volume settings on your computer/device and the in-line control unit.
- Verify that the headset is selected as the default audio output device in your operating system's sound settings.
- Microphone Not Working:
- Ensure the microphone is not muted via the in-line control unit.
- Check the microphone input settings on your computer/device and ensure the headset microphone is selected.
- Reposition the microphone boom closer to your mouth.
- Poor Sound Quality:
- Ensure the 3.5 mm jack is clean and free of debris.
- Test the headset with another device to rule out a device-specific issue.
- Check for any software updates for your audio drivers.
- Discomfort During Wear:
- Adjust the headband for a looser or tighter fit.
- Ensure the ear pad is correctly seated on the earcup.
If the issue persists, please refer to the support section or contact EPOS customer service.
7. Specifications
| Feature | Detail |
|---|---|
| Model Name | IMPACT SC 630 |
| Connectivity Technology | Wired |
| Headphones Jack | 3.5 mm Jack |
| Ear Placement | On Ear |
| Form Factor | On Ear |
| Noise Control | Active Noise Cancellation (Microphone) |
| Control Type | Volume Control, Integrated Remote Control |
| Cable Feature | Retractable |
| Material | Plastics |
| Color | Black |
| Item Weight | 77 Grams (2.72 ounces) |
| Product Dimensions | 7.91 x 2.36 x 6.02 inches |
| Compatible Devices | PC |
| Manufacturer | EPOS |
| Item Model Number | SC630 |
| UPC | 393457351307, 615104237049, 840064403559, 809394436521 |
8. Warranty and Support
EPOS products are built to high standards and come with a manufacturer's warranty. For specific warranty details, including duration and coverage, please refer to the warranty card included with your product or visit the official EPOS website.
For technical support, troubleshooting assistance, or to inquire about replacement parts, please visit the EPOS Store on Amazon or the official EPOS support portal.





