best SQ sub on a budget? (DIYMA, wGTi, etc)

[1990dtgl98]

Hey all. I'm looking to add an amp sub in the trunk of my '08 Dodge Charger. Here's some requirements:

-Around $300 bucks max

-Running with a line output converter

-Between 500-1000 watts RMS power handling

-Want to be as light as possible (no 40lbs subs)

-Running in a sealed enclosure

-1 cu^ft enclosure (smallest footprint as possible)

-Great SQ, decent output

So, with those requirements, what would you recommend? I want great SQ, but also want something that will get pushing as it is a huge trunk and big car. So some mirror rattling would be nice.

I'm thinking of the the following:

-Boston SPG-555 (can get it through work for this price)

-Stereo Integrity Mag v4

-JBL w12GTi

-DIYMA R12

-Boston G512 (??)

-Fi Q

Anyone else have sub choices? Or can recommend one of those?

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