Digital Designs (DD) 1000a series subwoofer. i bought this 5 years ago, had it in my old truck for 2 and took it out when i sold it and got the taco. so its been sitting in my room for 3 years. still works, i took it to a local audio shop and had it tested just to be sure. if u know anything about car audio, you know these things sound awesome in ported box. i only ran 400W and it put out alot of bass. WILL NOT SHIP!