B/W 702 s3

I have the 703S3 and I went through a few amps before I liked the sound of them.   I agree with you they sounded “ok”.   One day my buddy brought his Macintosh amp and they sounded totally different.   I ended up going with a Passlabs x150.8 and they sound awesome.   B/w speakers need really powerful amps to sound good.   Powerful I mean high current.   Don’t think the Rotel is doing it for you.  I later added two Rel subs and they sounded even better.   Having said that the pass labs had them plenty of bass.  They subs just increased the sound stage. 

I had a similar experience with my Martin Logan 20i - they sounded just "okay" and no "punch".  So, I've decided to sell them - and moved them into a small room and temporarily connected to a vintage Pioneer SA-9800 (100 WPC).  It was like I got an upgrade to a much better pair of speakers, and I actually still have them to this day. 

In summary - I would say a more powerful amp and some full-er range speakers should solve all the issues - and we only live once.

Having owned a Rotel amp and being familiar with the B&W signature sound, there may be a synergy issue. My Rotel tended to be on the bright side and most of the B&W's I've listened to seem to be a bit bright as well. Some of the others who posted suggested a sub and I also think that will help. Despite being a bit bright, B&W's are also very revealing and provide excellent soundstages and detail. If I was to switch anything out, it would be the amp. 

I have a pair of Fyne F-72s with 8" woofers, and they were lacking in punch at the low end.  Still are, but I added two Rythmik FS12e subs, and that made a HUGE difference in the sound, even beyond the lower bass register; it was a definite transformation.  I am not familiar with the Rotel line, but I am driving my Fynes with two Odyssey Kismet mono blocs--which I will soon have converted to stereo to vertically bi-amp the speakers, and the sound quality is superb ... again, with the two subs.

Thank you all for your great comments and advice.  Let me tinker with placement.  They are toed in a bit.  Clearly my room is not ideal.   Very open and the entire right side is glass windows.  Tried to load a picture and can't get it to post.  The 702 s3's are ported downward and not out the back, I am not sure that is an issue. I am not sure the Rotel gear is all that great, I am kind of deep into the Rotel gear and would hate to move on at this point.  

As for adding a sub or two, would you recommend mono or stereo subs.  I do have a mono sub jack on the Rotel RC 1590 MII

Again, thank you all-great stuff!