1. Introduction
This manual provides detailed instructions and information for the Springfield Speaker FS-A 2 x 6.5-inch Speaker/Subwoofer Replacement Spider. This component is designed for speaker repair and restoration, specifically for applications requiring a 6.5-inch outside diameter spider with a 2-inch voice coil opening. Proper installation is crucial for optimal speaker performance and longevity.
2. Product Overview
The speaker spider is a critical component in a loudspeaker, responsible for centering the voice coil within the magnetic gap and providing the necessary restoring force for cone movement. The Springfield Speaker FS-A replacement spider is manufactured to precise specifications to ensure compatibility and reliable performance in speaker and subwoofer repair applications.
Figure 1: Springfield Speaker FS-A 2 x 6.5-inch Replacement Spider. This image displays the circular, corrugated fabric component designed to center the voice coil and provide suspension for a speaker cone.
3. Specifications
The FS-A replacement spider features specific dimensions and stiffness characteristics to match various speaker and subwoofer repair requirements.
| Specification | Value |
|---|---|
| Model Number | FS-A |
| Inside Diameter | 2 inches (50.8 mm) |
| Outside Diameter | 6 1/2 inches (165.1 mm) |
| Stiffness Rating | "D" (on a scale of A-F, where F is the stiffest) |
| Inner Mounting Feature | 1/4-inch tall vertical lip to hug the voice coil former |
| Manufacturer | Springfield Speaker |
Note: Stacking of this spider is not recommended for typical applications.
4. Setup and Installation
Replacing a speaker spider requires careful attention to detail and proper tools. It is recommended that this procedure be performed by individuals with experience in speaker repair or by a qualified professional. Incorrect installation can lead to damage to the speaker or poor audio performance.
4.1 Required Tools and Materials
- Appropriate adhesive (e.g., speaker repair glue, epoxy)
- Shims for voice coil centering (if not using a dust cap method)
- Utility knife or razor blade
- Cleaning solution (e.g., isopropyl alcohol)
- Small brushes or applicators for glue
- Protective gloves
4.2 Installation Steps
- Preparation: Carefully remove the old spider, cone, and voice coil from the speaker frame. Clean all surfaces thoroughly, ensuring no old adhesive or debris remains on the voice coil former, speaker frame, or cone attachment points.
- Voice Coil Centering: Insert the new voice coil (if replacing) or the existing voice coil into the magnetic gap. Use shims to center the voice coil precisely within the gap. The voice coil must move freely without rubbing.
- Spider Placement: Position the FS-A replacement spider over the voice coil former. The 1/4-inch vertical lip on the inner diameter of the spider should align with and hug the voice coil former. Ensure the spider sits flat on the speaker frame's mounting surface.
- Adhesive Application (Inner Diameter): Apply a thin, even bead of appropriate adhesive around the inner diameter of the spider where it meets the voice coil former. Allow the adhesive to cure according to the manufacturer's instructions. Maintain voice coil centering during this process.
- Adhesive Application (Outer Diameter): Once the inner adhesive has cured sufficiently, apply a thin, even bead of adhesive around the outer diameter of the spider where it meets the speaker frame. Press firmly to ensure good contact and allow to cure.
- Cone Attachment: After the spider adhesive has fully cured, attach the speaker cone to the voice coil and the outer surround to the speaker frame, following standard reconing procedures.
- Final Check: Once all adhesives are cured, carefully remove the shims. Gently press on the cone to ensure the voice coil moves freely without any rubbing or resistance.
5. Operating Considerations
After installation, allow the speaker to operate at moderate volumes for an initial break-in period (typically several hours) before subjecting it to high power levels. This allows the new spider and other suspension components to properly flex and settle, optimizing performance and extending lifespan.
6. Maintenance
The FS-A spider is a durable component designed for long-term performance. No specific routine maintenance is required for the spider itself. However, general care for your speaker system is recommended:
- Avoid exposing speakers to extreme temperatures or humidity.
- Protect speakers from physical impact or punctures.
- Ensure proper amplifier gain settings to prevent over-excursion of the speaker cone, which can stress the spider and other suspension components.
7. Troubleshooting
If issues arise after replacing the spider, consider the following common problems and solutions:
- Voice Coil Rubbing: This indicates improper centering of the voice coil. The speaker cone will produce a scratching sound when moved. This typically requires disassembling the speaker and re-centering the voice coil with shims before re-gluing the spider.
- Weak or Distorted Sound: Could be due to improper adhesive application, leading to a loose spider, or incorrect voice coil alignment. Re-inspect all glued joints and voice coil movement.
- No Sound: Check all electrical connections to the voice coil. Ensure the voice coil is not shorting against the magnet structure.
For complex issues, consulting a professional speaker repair technician is advised.
8. Warranty and Support
Springfield Speaker products are manufactured to high standards. For specific warranty information or technical support regarding the FS-A replacement spider, please refer to the official Springfield Speaker website or contact their customer service directly. Keep your purchase receipt as proof of purchase.
For additional resources and product information, visit the Springfield Speaker Store.