Sorry, been extremely busy this weekend and have had limited online time. Ranger does give a valid point, and yes we do have to make our specs more middle of the road as they are not set to anyone's specific vehicle, but what the individual subs are naturally comfortable in. The enclosure sizing I suggested on our site, is just that, a suggestion, not a requirement. The Gcon may have a smaller motor, BUT it is very close to the original Icon (for a couple of dollars less I might add), so motor strength is not really an issue. The Gcon does prefer a slightly larger then average (no Vega large), but where many 12's will hover in the 2.0 range, the Gcon 12 is good in the 2.25ish area for most needs. Hope that helps.