I'm going to throw out some questions to you so that I can understand your situation better:
1) What are you doing with speaker placement? I mean with both the B&W and Velodyne subs. The lack of punch--especially if you are crossing over at 100--sounds to be like a speaker placement issue. Your Rotel model doesn't have room correction, so you may have some room issues.
2) 100 is a high crossover. I'm not super-familiar with your LRC setup, but if the speakers don't go down below 100, then my strong hunch is that the source of your 2-channel dissatisfaction is with your speakers and not your AVR.
3) If your room is as large as I think it is (can you confirm size and distance that you sit from the mains?), then I think your speakers simply cannot move enough air in your current space.
In my particular case, I was running Revel M22 for years paired with a Revel B15 sub (I'd use crossover settings between 80-50). They are absolutely fantastic speakers and a killer 2.1 channel setup for stereo. However, I too felt like I was missing something in stereo listening but had no complaints in 7.1 multichannel. When I spoke to a local dealer and a few others, they clued me into the fact that the speakers were likely too small for my setup--I'm in a large room and sit 14 feet from the speakers. Piano especially did not have the weight and depth that I know a "real" piano does.
I played with placement and that helped but I noticed that moving closer made a difference; however when I upgraded my speakers to full-range Revels, all that went away. Wow and I mean WOW what a difference. Now, I had speakers that were able to move enough air and really fill the room. 2-channel has never sounded better and I have absolutely no upgrade itch for the first time in years and years.
So, in your particular case, I have a funny feeling that the issues you are experiencing are a combination of placement and speaker model within your particular room environment and that by exploring those issues more, you may get closer to what you feel you are missing.
1) What are you doing with speaker placement? I mean with both the B&W and Velodyne subs. The lack of punch--especially if you are crossing over at 100--sounds to be like a speaker placement issue. Your Rotel model doesn't have room correction, so you may have some room issues.
2) 100 is a high crossover. I'm not super-familiar with your LRC setup, but if the speakers don't go down below 100, then my strong hunch is that the source of your 2-channel dissatisfaction is with your speakers and not your AVR.
3) If your room is as large as I think it is (can you confirm size and distance that you sit from the mains?), then I think your speakers simply cannot move enough air in your current space.
In my particular case, I was running Revel M22 for years paired with a Revel B15 sub (I'd use crossover settings between 80-50). They are absolutely fantastic speakers and a killer 2.1 channel setup for stereo. However, I too felt like I was missing something in stereo listening but had no complaints in 7.1 multichannel. When I spoke to a local dealer and a few others, they clued me into the fact that the speakers were likely too small for my setup--I'm in a large room and sit 14 feet from the speakers. Piano especially did not have the weight and depth that I know a "real" piano does.
I played with placement and that helped but I noticed that moving closer made a difference; however when I upgraded my speakers to full-range Revels, all that went away. Wow and I mean WOW what a difference. Now, I had speakers that were able to move enough air and really fill the room. 2-channel has never sounded better and I have absolutely no upgrade itch for the first time in years and years.
So, in your particular case, I have a funny feeling that the issues you are experiencing are a combination of placement and speaker model within your particular room environment and that by exploring those issues more, you may get closer to what you feel you are missing.