I have had this in my car about three weeks now, just never got around to posting it.
As stated, I have a Sa-8 v.2 in what I thought was a .72 cu ft box tuned to around 33 hz. Realized after building that it was .64 or so around 36 hz. Forgot the displacement of the sub(anyone say newb? Haha). I was told to try some polyfill to see if that would help, so I did that and it seems to have tuned it a little lower. Doesn't bottom out on all but 2 songs I have now. This box does unfortunately have some port noise(didn't round the edges), so a rebuild will happen next week. My gf did say she wanted more, so I'll be upgrading to two sa-8 while I'm at it.
Right now I have:
H/u: Kenwood Exeleron KDC-x396
Sub Stage: Sa-8 V.2
Amp: Aq 1200D
Wire: 4g wire
Mids/Highs: Crescendo pwk-6/Unsure yet
Sub Stage: 2 Sa-8 V.2
Amp: Sundown 1500(hopefully),100.2(unsure)
Wire: All 1/0 gauge
Big 3, extra battery
Enough talking, here's pics.
Unfortunately I don't have any of it installed in my car. Might do a video, I'm not sure yet. I do get a lil itty bitty paper trick though with my window cracked.