Assuming Both were ran in optimum ported enclosures, running off a SAZ-1500d @1ohms (i know way too much power, gain would be set correctly don't worry), which would you choose and why? Looking for more SPL than SQ, and this will be a daily beater setup.

I'm looking between the upcoming sa-15 and 15" SSD w/BP power, I understand the sa-15 isn't out yet, but judging by the specs which would you prefer? Obviously the SSD is rated at 800rms vs 600rms for the SA, but it seems like the Sundown is very underrated... I think it would run at 800rms fine.

So far the differences I can find is the 2.5"(SA) coil vs. 3"(SSD), the SSD has a slightly lower FS (29.6 vs 30.9) as well as Qts (0.41 vs 0.60), while the SA15 has a larger Mms (308.4g vs 288g)... I understand the FS but am clueless to all the other numbers, what exactly do higher/lower Qts and Mms numbers tell you about a woofer? I read the terminology sticky but still don't understand the real world implications of these numbers..

Thanks in advance!

SA-15 specs gathered from here

SSD specs gathered from Fi website

Edited September 11, 201015 yr by bimmerboy

Either one would be a great choice! And if I'm right, I think the qts helps determine if it will like a sealed or ported box better