ED a3-250 or a2-300 subwoofer

i am upgrading subwoofer and am liking the ED I mentioned above, anyone have suggestions which one would be better for a room approx 14x14 or so.

Also, any other suggestions for subwoofer that can compare to those and go down to 18hz in the same price range.....

thanks a bunch for the help...
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I use it more for Home Theater..... my speakers are all ported, should I stick with ported subwoofer???

So you think 10 inch would be not as good as 12 it seems???

Do you have any other suggested subwoofers in the price range to look at???

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