Rockford Fosgate 4″ Voice Coil Dual 4 Ohm

Rockford Fosgate 4″ Voice Coil Dual 4 Ohm

The Rockford Fosgate 4″ dual 4 ohm voice coil 4-layer aluminum wire, precision-wound on a black anodized aluminum former to ensure superior heat dissipation. The black anodized finish not only enhances thermal conductivity but also boosts durability and corrosion resistance, contributing to long-lasting performance. Additionally, the use of aluminum wire further enhances heat dissipation while reducing overall weight, making it ideal for high-performance audio applications. Because of its lightweight nature, the voice coil moves faster and more responsively, which improves efficiency and delivers precise, dynamic sound reproduction. Furthermore, aluminum’s excellent conductivity, relative to its weight, ensures effective power transfer with minimal loss. Although it is less dense than copper, its reduced mass improves the voice coil’s speed and transient response, ultimately contributing to crisp, detailed audio performance.

Adhesives for Subwoofer Repair and Reliability

To ensure long-lasting reliability, this voice coil is constructed using a high-temperature adhesive capable of withstanding extreme temperatures up to 500°F. As a result, it performs well under demanding conditions and has earned customer trust. By contrast, competitors’ coils often fail due to inferior adhesives.

When repairing a subwoofer, it’s essential to use the correct adhesive for each component to ensure proper bonding:

• Voice Coil to Spider and Cone: Black rubber CA glue provides a strong, flexible bond for these critical connections.

• Surround Lip to Frame: Use L3890 black rubber glue, which maintains flexibility to handle the inherent vibrations in subwoofer operation.

• Dust Caps and Lead Wires: Likewise, L3890 glue is ideal for securing dust caps and dressing lead wires, ensuring they remain securely in place during use.

Using adhesives formulated specifically for speaker repair is crucial. They are designed to withstand the unique stresses and vibrations experienced by subwoofer components. Therefore, always follow the manufacturer’s guidelines to ensure optimal performance and longevity.

Soldering Aluminum Voice Coil Wires

Soldering aluminum voice coil wires can be challenging due to aluminum’s natural oxide layer, which hinders standard soldering methods. Thus, to achieve a reliable bond, it’s essential to use both a flux and solder specifically designed for aluminum.

For best results, we recommend our Ultra Gold Flux Soldering Kit, which is formulated to effectively disrupt the oxide layer and facilitate a strong connection between aluminum components. Otherwise, attempting to solder without these specialized materials may result in weak joints or even complete connection failure. Therefore, investing in the appropriate soldering kit is essential for ensuring the durability and performance of aluminum voice coil repairs.

Custom made for Rockford Fosgate Power HX2 & T2 Series

• Former Height: 4.1″  (104.1mm)
• Winding Width: 1.97″  (50mm)
• Outer Diameter: 4.148″  (105.4mm)
• Inner Diameter: 3.965″  (100.7mm)
• Impedance: Dual 4 Ohm
• Layers: 4
• Former Material: Black Anodized Aluminum
• Wire Material / Type: Flat Aluminum