DD Audio - Custom under the seat OR center console subwoofer enclosure? Which one would you choose? 🤔🤔 | Facebook
DD Audio - Six DD REDLINE 506 Subwoofers in a Chevy... | Facebook
DD Audio 506d Product Preview - YouTube
DD Audio - NOW AVAILABLE: The 506 is the newest addition to the DD Redline 500 Series. It packs big sub performance features into a tiny 6.5 inch profile. With it's over-sized
506d: 150w to 400w - 6 Inch Power Tuned Subwoofer - DD Audio