If you like the S3/5 I strongly suggest you find either a pair of s3/1p (6.5" woofer, vented) or, interestingly, a pair of the now-discontinued SC3 center channels set on edge as a l/r pair (TWO 5" woofers flanking that tweeter, vented). Both these designs have a full +5 to 6dB increase in sensitivity due to the bigger/more drivers, and far better bass extension than the baby S3/5. Thus you won't have to get a bigger amp. I use the 1p as a stereo pair with the SC3 as a center as a front trio in my secondary HT system, and the stage is completely seamless. Either setup lists for $1400/pr, not much more than the S3/5, and are a MUCH better choice than the new lower efficiency S3 SE (too bright!).
Cheers.
Cheers.