[quote name='pbaleiras' timestamp='1320252934' post='1424425']
Thanks for the answers...
Alexclaber - so.... The freq range from sp212 its similar to "regular" 1x12, right?!?
Cheers
[/quote]
A generic neo 1x12 at full tilt maybe, he said 'maximum' output. The smart power I would guess is tuned very low so the isobaric loading has a point, so it probably has a lower extension, but will also have a mess somewhere in the mids/highs because of the loading, although maybe it already rolls off before there due to the drivers, basically the distance between the two drivers puts them out of phase from the time it takes for sound to get from one to the other. The maximum is the same because the speaker can only travel so far back and forth.
There is huge variety in the range of non-neo 1x12s just because there are many more non-neo drivers about, and many more years of cabs having been put on the market, some predating the design knowledge that neo era stuff benefits from. Basically there isn't a typical 12" sound, but you can sort of generalise about a typical neo 1x12 due to there being fairly limited scope for them.