This is a pretty good box. The frequency response is much more linear than a ported box. I used a TS-W3001D2 (high power but requires a smaller box due to Pioneer's "air suspension system." Even though the box isn't the loudest thing in the world (500 watt BASH amp), it's in a bedroom so it doesn't need to be. For that purpose, it sounds good and is plenty loud. The only thing I would be cautious of is the connector. It seems a little brittle and I'm not sure how it would fare if it was left to bounce around in a trunk.
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