I have a 12" Fi Audio BL sub for sale. It is the Dual 2 Ohm version rated for 1000 Watts RMS. I had this sub in a 3.6 ft^3 ported enclosure tuned to 40 Hz and it hit VERY hard. I bought this about 10-12 months ago and it still looks like the day I bought it. I garauntee this sub is in perfect...