They trade extension for efficiency. What you want in your sound is additional bass. For that, you need to use the right tool for the job, which is a sub. That said, you can reinforce the bass of your current speakers by moving them closer to room boundaries, at the risk of adding a boomy character to the sound. Experiment with placement to see if you can get a better overall sound. Another thing to consider is the placement of your seating. It's also possible you are sitting in a position that engenders a large null at some important bass frequency. You can test this by moving around the room during play to see if other positions are "better". Turn off Audyssey during this process.
All that said, no matter how you set it up, those speakers will never be able to plumb the depths of bass that a good sub can.
It's a VIRTUAL channel unless stated otherwise.
Last edited by RayGuy; 03-29-2020 at 12:32 PM.