Yea they are dual 4's, i liked those old 8000's back in the day they were pretty bad ass.
I love these 9500's for daily subs, they will pound all day long and sq is great, they take the 1500's like a champ, barely get warm at all when really pushing 'em, but they are no Spl woofer that's for sure. I've never been able to get great #'s out of them. I've had this pair since '05 in 5 diff vehicles and boxes. And the nice thing about 'em is that no matter how you tune the box they will always pound the low notes. You can get much better woofers for less money though, only reason I bought these was because I got the pair for $400 back in '05 when they first came out.