Subwoofer experts...help me decide!

[ghebert]

I was hoping to get a Paradigm Seismic 12, but my dealer confirmed they are now discontinued and Paradigm no longer has any in inventory. They recommended its successor, the Sub 12.

I wanted to get the Seismic 12 as it was a smaller cube sized sub and am now wondering if I should get the Sub 12 which is a bit bigger or go for another cube-type sub like the Sunfire True Subwoofer EQ 12. I can get the Sub 12 from my dealer, but would have to look online for Sunfire as there are no dealers in Canada to my knowledge.

Talking purely about performance and not price/size, which would you pick?

Thanks in advance