JL HD900/5 VS Zed Audio Levathian III

Rectorna

Hey everyone,
I'm looking to purchase a new amp since I just sold my old one. I am running a 2 way active setup up front with some Focal 165 V30 components and them one sub. Right now I have an Infinity Kappa 120.9w but I am getting ready to purchase either a Polk SR 124 or a JL 12w6.
Which of those subs would be better. I can get the SR for sound 200 used or 300 new for a single voice coil one. And I can get the JL for about 350 from an authorized dealer. I have also looked at a hertz Mille sub but didn't really look into it too much.
Also which of those amps do you think would be better for my setup. Size doesn't matter. The price for the Zed is 788 and the JL is 659 shipped from an authorized dealer.
I am also open to suggestions but not else has interested me because the Audison voce 5.1k which is a bit more than I am looking to spend even with dealer pricing.

Any help would be great!

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