well dont let me steer you to one direction or another... I prefer to have u lookat both sides equally and look at the pros and cons
for example for me this is what I came up with
A2-300 and the STF-2
low freq stability,,, reputable company,,,, loud ,, recommended by many
cost,,, looks,,, additional cost for dual set up ,, will I really be able to playit to its potential (townhome living )
cost, cost for duals, appearance,, decent to good reviews (happy owners ),, good frequency response for being a budget sub,,, better than what I had originally
might not be as great as the A2-300/STF-2..
to my surprise the PA-120 was much better than what I expected,,, (I went into it expecting just the absolute minumum ) ... and my dual set up... was WAY more than what I expected.... was expecting a 3dB gain across the board.... it was more like 6dB gain a huge diference...
im sure I would have been happier with the A2-300/STF-2... but that would mean spending more for the sub itself and then extra for a piano gloss finish
everyone has their reasons