Can anyone tell me if this sub is a SSD 15 or a Q 15

[PTbruiser 0]

[Godsmack 361]

my instincts say Q

[NB50 206]

my instincts say Q

X2 the backplate/pole vent looks like a Q.

[ABXX49 20]

I agree with the previous two posters, my vote goes Q!

[lee 2]

Also looks like it has the bp option aswell

[ford302redneck 15]

Thats a Q.