Center dash speaker for 18+ shaker pro?

[Tyeayo1]

So I've searched and the consensus at one point was to replace the center speaker with a polk db351....however they no longer make em and I can't find one anywhere.

What is a comparable alternative? Both in terms of size/depth and impedence? I would prefer sticking with the 2ohm impedence and have it as close to plug and play as possible.

Thanks gents!

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