Subwoofer DD AUDIO Red Line 612e D4 30cm 2x4Ω 1800 Watt sub auto spl 30 cm auto
DD AUDIO 608F-D4 8" 3000W DUAL 4-OHM SUPER TUNED SUBWOOFER ALTOPARLANTE BASSO NUOVO | eBay
Digital Designs DD Audio subwoofers. http://www.caraudioempire.eu/subwoofers /digital-designs-subwoofers | Car audio installation, Car audio systems, Car audio
9912b (ESP): 1500w to 2500w - 12 Inch Power Tuned Subwoofer - DD Audio