sorry about that i have been busy all day upgrading my wiring system to 4 gauge. i am very very impressed with the subs. i believe they are more of an SPL sub, but i don't really have much to compare to except for my last kenwood tornados, some kicker l7's, some alpine type s, and other subs in that area. The SQ is better then decent in my opinion...and i only have them in a stupid prefab for now because i am building my own box and couldnt wait to hear them so i bought a prefab for now. In the prefab...the SPL is amazing...it beats my friends 2 12" kicker l7's in a durango...and mine are in a buick. that tells you something there. I am not very very satisfied with the SQ but that will be fixed when i build my own sealed enclosure. I got mine from my local shop...I paid $310 for each. They are rated at 400w...but i am sending them 600+ a piece and seem like they could probably take more. I believe these are very very nice subs. If you have any more questions....ask away