Why does the SSD drop off so much

[Silverbane 0]

How come it drops off so bad at 60 Hz where other subs do not?

http://bigbassman.realmofexcursion.com/sub/ssd.htm

[NDMstang65 403]

Just one given scenario and one given install...only reason we did the 12 challenge is to give a basis in a given application for all different woofers.

Put that same box in your car, it'l act completely different.