two pyle sub woofers in a truck book with tweeters, box was maybe 16 inchs wide, powered them off a 300watt dual amp i think (~30 for the sub, ~30 for the amp)(sold amp for 30)
then i bought a 12 inch kicker with a 700watt crunch amp (~65 for the sub, ~55 for the amp) (sold for 125 and bought my current car speakers)
two old school 10 inch kickers (150rms ea) powered by a ~2k watt lazner (subs were free, amp was free) <- first subs i blew, switched from Scosche RCA's to Monster RCA's and 2 minutes later smoke
two 10 inch kicker comps (got these for free) powered by a 1100watt crunch amp (traded lanzar amp with a boss 15inch sub for these)(sold for 300 and put toward my current computer)
then i traded my brother for a rockford p2d4-10 sub in a kenwood basstube (~50)
bought two infinty ten inch subs powered by a boss amp (~50)(sold for 80)
currently using a alpine 12inch sub powered by an MB quart amp (~60 for the sub ~130 for the amp)
and i think i've had other subs/amps that i've just thrown away