I'm not sure if this particular subwoofer lends to being ported. I'd need to see the "TS Params" to tell you that. With the parameters, its easy to build a ported box. However, you can't just poke a hole in a sealed box and call it done. Typically a ported box will be much larger than a sealed box, and require a port of significant length and area. You can get very high sound quality in a properly designed and built ported box - but the majority of (almost every) ported boxes I've heard are either the wrong size, ported way too high, or holding a sub that was much more suited for sealed.
So in your case, I would leave it alone.
