There's no doubt your room is too small. The 3.1s have 10-inch side-firing woofers that really need some space away from the side walls that your room simply will not be able to provide. If you had a way to control the bass it might be different. Otherwise you are setting yourself up for a miserable situation.
The 3.1s sound great (although they do need lots of power which is a serious downside) but in my experience, so do their Strada units, which are basically the midrange drivers and ribbon tweeters freed from those 10-inch woofers. Couple those with the Gallo subwoofer - or any other number of quick subwoofers - and you'd have a hell of a system, though admittedly not as cheap...
My advice - consider other alternatives. There are a few good ones in your price range.
The 3.1s sound great (although they do need lots of power which is a serious downside) but in my experience, so do their Strada units, which are basically the midrange drivers and ribbon tweeters freed from those 10-inch woofers. Couple those with the Gallo subwoofer - or any other number of quick subwoofers - and you'd have a hell of a system, though admittedly not as cheap...
My advice - consider other alternatives. There are a few good ones in your price range.