yes, yes, yes - i would love to get a first hand review of the SO!!! i'm sure it would be a fun experiment for you too... i guess, if you have the means, i wouldn't mind seeing the SPL/Freq chart... maybe even a direct comparison to the Full Ranger... of course, the drivers would need to be mentioned as well...
did your friend scale the SO up to 18's too???
is there any way to get any plans from that person???