low bass response

And of course your room layout is not very good to be frank as pointed out by many. All I will say about that is take a look at my system and you will see how much I put in the value of equipment placement and room acoustics. Obviously you can afford good stuff, no reason not to spend some of it on room layout and acoustics. It's not as easy as buying expensive equipment but the results are much more satisfying.

Your thoughts are all appreciated. Some of us don’t have flexibility with space, and make the most of what we have….

@jw944ts You have a very good setup. Ravel go down to 23 Hz at 3db. So you should get good low frequency response. First you need to measure frequency response of your system from the listening position using Stereophile Test CD or similar with test tones. You can use radio Shack meter to measure frequency response. This should give a very good idea whether you are getting a good bass response or not. Room modes play a significant role in the low frequency reproduction.

Also identify some source material that contains low frequency information. For example, I use Wishing Well track on One Night in Vienna by Peter Scott and Richard Schönher that has a drum in the middle of the sound stage that goes from start to finish. Another one is Wrecking Ball by Emmylou Harris. If your room is not shaking, then you have a low bass problem and may have to consider room treatment.

A slim little tower will have bass issues as well as baffle step issues making for a thin bright sound.