DD Audio 8" Dual Voice Coil subwoofer
 
Overview 
The 500 series is one of the best performing subs you can find in its power class. With a highly efficient design, the 500 series can easily be driven to high output levels on as little as 150-400 Watts. When compared to the 200 Series the 500 Series uses a longer coil, more powerful motor and the suspension is designed to handle higher transient peaks. These are very versatile subs that work well in sealed enclosures while providing the extra energy and control needed for vented enclosures applications.
 
Any DD Audio Product bearing the Marine Grade logo incorporates water resistant features enabling it to be used in applications where moderate exposure to moisture will not result in damage to the product. 
Marine Grade products are not waterproof, and submersion or excessive moisture exposure may result in product failure. DD Audio Marine Grade products are not certified for saltwater environments.
 
Features
• EROM surround
• High-temp, 2.0”, voice coil
• Double Layer Deep bass, high excursion spider system
• Unique glass fiber and natural pulp cone
• Back plate coil gap venting
• Extended pole piece
• DD stamped steel basket (508-512)
• DD cast basket (508)