A dual voice coil (DVC) design is a configuration commonly used in loudspeaker drivers, particularly subwoofers. It involves a speaker driver with two separate voice coils wound on a shared former (the cylindrical structure that holds the voice coils), each connected to its own set of terminals. Each voice coil is wound with its own wire, and they are physically separated but located on the same former. The former is connected to the speaker cone, which moves in response to the electrical signals applied to the voice coils.
Advantages:
- Wiring Options: The primary advantage of a DVC design is the flexibility it offers in wiring configurations. With two voice coils, a DVC driver allows for different wiring options, such as parallel or series wiring, which can provide various impedance options and make it easier to match the driver to an amplifier's power capabilities.
- Increased Power Handling: A DVC driver can handle more power compared to a single voice coil driver of the same size and construction. The dual voice coils can distribute the power more evenly, allowing for higher power handling and reducing the risk of overheating or damage to the voice coils.
- Wiring Versatility: Dual voice coil drivers allow for greater flexibility in system design when utilizing multiple drivers of the same type. They can be wired in series or parallel to achieve different impedance configurations, making them compatible with a wide range of amplifiers and system setups. This flexibility makes DVC drivers suitable for multi-driver setups, bridged amplifiers, or applications requiring specific impedance matching.
- Improved Bass Management: DVC drivers are commonly used in subwoofers where precise bass management is required. The dual voice coils allow for better control over the subwoofer's response, enabling fine-tuning of parameters such as impedance, power handling, and sensitivity to optimize bass performance in a given system.
- Increased Complexity: DVC drivers have a more complex construction compared to single voice coil drivers. This complexity can result in higher manufacturing costs and potentially make them more prone to certain mechanical issues, such as coil misalignment or coil-to-coil interference.
- Slightly Higher Mass: The presence of two voice coils and their associated components can slightly increase the overall mass of the driver. While this may not be a significant concern in most applications, it can have an impact in certain scenarios where minimizing the weight or achieving maximum efficiency is critical.
- Limited Applicability: Dual voice coil drivers are primarily used in subwoofers and bass-specific applications.
Main Page