Good sub for 1.2 cubic foot box?

[CT_SRT 10+ year member]

So im worried that my mag might have blown because something is sounding incredibly weird inside of it. So does anyone have any ideas for good sub more spl than sq for under 300 that could take 1200watts, and work with my ported 1.2^ foot box?

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[tex512 10+ year member]

HD3 but its a little over 300 gets loud with 1200 watts and will be ok in that box