Well i thought i had my mind correct on the RE X.X.X. 15 but i took a look at the new Adire Brahma 15 Mark 2 and that thing is beastly and it looks like the Brahma 15 is a triple stacked magnet and the RE xx.x 15 only has a double stacked. Which one is better quality that will last me a long time with my Hifonics BX1500D
they are both top of the line you prob wont notice a difference between the two. The Brahma is a great sub but with that amount of power you wold need a small sealed enclosure where the RE would handle that amount of power all day long and possably still be hungry. Also look into ascendant audio they are right up there with both of those subs and a bunch cheaper