Need Helping Findout Out My Subs Model

[Ricardo Perez 0]

I bought 3 10" Fi subs but never could find what model mines were and im just curious to know. All i know is that they are Fi subwoofers.

[jonbearsmt 919]

looks like the old X series too me.

[altoncustomtech 773]

I helped a friend buy a pair of 10's just like this back in 2010 IIRC.  They're the Black Fiday sale X series subs.  The regular old X series subs had silver motors, like the rest of the Fi lineup, these had the black plates.