Im selling my IA DP 21 I have had it for about a month now and its just too loud. Its in perfect shape its a 2 ohm 1500 watt rms 3000 max i have been running 1200 watts to it since i got it and its still not broken in. Will sell with box its a ported 9.0 cu foot box tuned to 36 hz. I had brains surgery a few months ago ( crashed my dirtbike) and my doctor is saying that its probally not a good idea to be up around 150db lol. So i guess ill listen Best offer takes it will ship the sub buyer pays cost to ship should be around 60 70 bucks depending on area I live on LI so if u live anywhere near pickup is available and you can get the box too. Best offer.. any question or an offer >>>>>>>>>> email me elemntsk8terboi@hotmail.com