As the title states, dual 1 ohm, FI SSD 10" flatwind coils, traded it from Billabong, beautiful condition, looks new. I am considering selling it, or trading it. I dont really know what theyre worth, supposed to handle 1k watts. Beautiful sub as you all probably know. If we trade, Id have to get something of equal value, and it needs to be a sub with either a single 4 ohm, or a dual 2 ohm, dual 8 ohm if its something odd lol. I need a final resistance of 4 ohms, you get the picture. I can get photos if needed, its sitting in my closet, but I dont want to take them until I have some interest.