The subs sound equivilent to a sealed 12 getting 300 watts, I figure they get up around 125db. The rest sounds like coax'es off an aftermarket HU, overall not bad for under 500 bucks CDN$.
Nothing compared to my old setups though, I have some plans in the works for possibly an extended cab S10 or an older model Chevy half ton that will include a 1200watt sub amp and a couple 12's then some components off a smaller 4channel then a Pioneer or Kenwood HU.