I owned an A2-300 for about a year before I bought an eD A7s-450 (free shipping on that as well.
The BIC sub is good....but it doesn't even begin to compare to the A2-300. Period. One of my good friends has a BIC and it's a really good sub...but it neither goes as low, plays as loud, or is as accurate as the A2-300.
The free shipping is legit. If they can ship my 140+ lb A7s-450 from Iowa to Florida, your 75lb A2-300 will ship for free in the CONUS.
Further, the 200 watt rating on the eD sub is an RMS rating of actual tested wattage delivered to the driver at rated impedance...it outputs dynamic power up to 500-700 watts (per eD's design staff; I asked). I am confident that you will be quite happy with an A2-300 (you'll forget about the $15 extra....guaranteed). If there is a wait, it's worth it.
I sold my A2-300 to my buddy who used to sell BOSE and was a huge BOSE fanboy. Not anymore.
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He loves the damn thing.
As for my A7s-450, it's an amazing sub and can't be compared to any sub in its price range save for possibly the Epik Empire. I used to just leave the sub off while watching TV, but the A7s-450 is so accurate and musical...I leave it on all the time now. Can't get enough.
I have also owned HSU Research (Original VTF-2 w/ 10" driver) and was utterly pleased with its performance (sold it to my brother who uses it in his bedroom and loves it). However, for value, HSU has been eclipsed by Epik and Elemental Designs. HSU's quality cannot be called into question, so please don't misconstrue my comments. I have also heard several SVS subs for brief sessions in other people's rooms and they sounded fantastic as well (great mid-bass impact). Their value I would equate to HSU...very good, but, as I stated before, they too have been eclipsed in value by Epik and eD.