1. Introduction
This manual provides detailed instructions for installing the Springfield Speaker Infinity 12-inch SM120 Speaker Foam Surround Repair Kit. This kit is designed to restore the performance of your Infinity speakers by replacing deteriorated foam surrounds. Proper installation ensures optimal sound quality and extends the life of your speakers.
Image 1.1: A new foam speaker surround, ready for installation. This component is crucial for speaker cone movement and sound production.
2. Safety Information
Always prioritize safety when working with tools and adhesives. Read all instructions before beginning the repair process.
- Ventilation: Work in a well-ventilated area when using adhesives to avoid inhaling fumes.
- Eye Protection: Wear safety glasses to protect your eyes from debris and adhesive splashes.
- Skin Protection: Avoid direct skin contact with adhesives. Use gloves if necessary. In case of contact, wash thoroughly with soap and water.
- Tool Handling: Use caution when handling sharp tools like utility knives or razors. Keep them away from children.
- Power Disconnection: Ensure speakers are disconnected from any power source before starting the repair.
3. Package Contents
Verify that all components listed below are present in your kit:
- 2 Premium American-made 12" Infinity Foam Surrounds
- 2 Original 3.5" foam-over-screen EMBOSSED Infinity logo dust caps
- Step-by-step installation instructions (this manual)
- 1 Bottle of premium professional-grade adhesive
- 1 Bottle of premium dust cap adhesive
- 2 Adhesive application brushes
- Voice coil shims
Image 3.1: The complete repair kit, showing foam surrounds, adhesives, and application tools.
4. Compatibility
This repair kit is compatible with the following Infinity speaker models:
- Infinity SM-120
- Infinity SM-122
- Infinity SM-125
- And many other 12-inch Infinity speaker models requiring similar foam surround dimensions.
5. Setup and Preparation
Before beginning the repair, gather the necessary tools and prepare your workspace.
5.1 Required Tools (Not Included)
- Utility knife or razor blade
- Small flat-head screwdriver
- Rubbing alcohol or adhesive remover (optional, for stubborn residue)
- Clean cloths or paper towels
- Masking tape (optional, for securing shims)
5.2 Workspace Preparation
- Choose a clean, well-lit, and well-ventilated area.
- Cover your work surface to protect it from adhesive spills.
- Ensure the speaker is stable and easily accessible.
6. Installation Instructions
Follow these steps carefully to replace the foam surrounds on your Infinity speakers.
6.1 Removing the Old Surround and Dust Cap
- Carefully remove the speaker from its enclosure.
- Using a utility knife or razor blade, gently cut and peel away the old foam surround from both the speaker cone and the speaker frame. Be careful not to damage the cone or the voice coil wires.
- If your kit includes new dust caps, carefully cut around the edge of the old dust cap and remove it. This step is crucial for accessing the voice coil and inserting shims. If your kit does not include new dust caps, you may need to carefully pry up the old dust cap or use an alternative method for centering the voice coil (e.g., a test tone). This manual assumes dust cap replacement.
- Thoroughly clean all old adhesive residue from the speaker cone and the speaker frame. Use a small screwdriver or your fingers to scrape off larger pieces, then use rubbing alcohol on a cloth to remove any remaining sticky residue. A clean surface is essential for proper adhesion.
Image 6.1: Example of a repair kit, showing the foam surrounds and adhesive.
6.2 Centering the Voice Coil with Shims
- Gently push the speaker cone down to expose the gap around the voice coil.
- Insert the provided voice coil shims evenly around the voice coil gap. The shims should fit snugly but not force the voice coil. This ensures the voice coil remains perfectly centered during the gluing process, preventing rubbing and distortion.
- Once shims are in place, the cone should move freely up and down without any scraping sounds. You may use small pieces of masking tape to temporarily secure the shims if they tend to fall out.
6.3 Attaching the New Foam Surround
- Apply a thin, even bead of the professional-grade adhesive to the outer edge of the speaker cone where the new surround will attach. Use one of the provided application brushes for precision.
- Carefully place the new foam surround onto the cone, aligning its inner edge with the adhesive. Press down gently to ensure good contact. Allow the adhesive to set for a few minutes as per adhesive instructions (typically 5-10 minutes).
- Next, apply a thin, even bead of adhesive to the speaker frame where the outer edge of the foam surround will attach.
- Carefully lower the outer edge of the foam surround onto the adhesive on the speaker frame. Ensure the surround is evenly seated and not stretched or compressed. Gently press down around the entire circumference to secure it.
- Allow the adhesive to cure for at least 30 minutes before proceeding to the next step. For best results, allow several hours or overnight for full cure.
Image 6.2: Example of professional-grade adhesives used in the repair process.
6.4 Attaching the New Dust Cap
- Once the surround adhesive has sufficiently cured, carefully remove the voice coil shims.
- Apply a thin bead of the dust cap adhesive around the edge of the voice coil opening on the speaker cone.
- Center the new dust cap over the voice coil opening and gently press it into place, ensuring a good seal.
- Allow the dust cap adhesive to cure completely, typically several hours or overnight, before testing the speaker.
7. Maintenance
After successful repair, minimal maintenance is required to ensure the longevity of your speaker surrounds.
- Avoid Direct Sunlight: Prolonged exposure to direct sunlight can degrade foam surrounds over time.
- Clean Gently: If cleaning is necessary, use a soft, dry cloth. Avoid harsh chemicals or excessive moisture.
- Inspect Periodically: Occasionally check the surrounds for any signs of cracking or deterioration, especially if speakers are stored or used in extreme conditions.
8. Troubleshooting
If you encounter issues after installation, refer to the following common problems and solutions:
| Problem | Possible Cause | Solution |
|---|---|---|
| Voice Coil Rubbing/Scratching Sound | Voice coil not centered properly. | This is critical. If the adhesive is still wet, try to re-center the cone using shims. If cured, the surround may need to be carefully removed and reinstalled. Ensure shims are used and fit snugly during installation. |
| Poor Adhesion | Insufficient cleaning of old adhesive; not enough adhesive applied; insufficient curing time. | Ensure surfaces are thoroughly clean. Apply a thin, even coat of adhesive. Allow adequate curing time before handling or testing. |
| Distorted Sound | Voice coil rubbing; surround not sealed properly; damaged cone or voice coil. | Check for voice coil rubbing (see above). Inspect the surround for any gaps or loose areas and re-glue if necessary. If the cone or voice coil was damaged during removal, further repair or replacement may be needed. |
9. Specifications
Key dimensions and product details for the Springfield Speaker Infinity 12-inch SM120 Speaker Foam Surround Repair Kit (Model 2INF12):
- Model Name: 2INF12
- Subwoofer Diameter: 12 Inches
- Foam Dimensions:
- Outer Diameter: 11.1" (282mm)
- Outer Roll Diameter: 10.4" (264mm)
- Cone Diameter: 9.2" (234mm)
- Inner Diameter: 8.83" (224mm)
- Roll Width: 9/16" (14mm)
- Inner Attachment: Angled
- Material: Foam
- Color: Black
- Number of Items: 2 (for two speakers)
- Recommended Uses: Home Audio, Car Audio, Professional Audio
- Item Weight: 1 pound (approximate, for entire kit)
- UPC: 810694023458
10. Warranty & Support
10.1 Warranty Information
Specific warranty details for this product are not provided in the available information. Please refer to the Springfield Speaker official website or contact their customer service for current warranty policies.
10.2 Customer Support
For further assistance, technical support, or inquiries regarding your repair kit, please visit the official Springfield Speaker store or contact their customer service department.
Springfield Speaker Store: Visit Store