Rec'd my Xcon 10D2 back in October and finally got the car install done yesterday and all I can say is ....Damn . I have the Xcon in a 1.2cuft^3 sealed box and it sounds amazing. I know it'll need some time to break in, but this little monster sounds tits . I replaced a Phoenix Gold TIElite12D to reduce some weight, but the Xcon actually weighs more than the Elite and seems to be more efficient as I was running the ELite off a PG TI1200.1 and the Xcon is currently runnin' off a JL Audio 500/1v2. Great sub for the money and couldn't be happier, thanx again SSA.