This is the D4 15" cvr.This thing is in like new condition and wangs hard. I was running it off my a8000t and it took it no prob. Great sub for the price. $100 shipped within 48 states. Paypal only. Here is the thread i made in ca.com. Take a look there and post here if your interested or post there. I dont care i just want to sell. it. Oh yeah i bought it new like 4 months ago now.