I only have mini monitors, but they are in a fairly small room. Your question implies an interest in amount of bass rather than quality of bass, but I think both are vitally important. I'm sure that some of the suggestions above will be of help, especially speaker placement and listening chair placement for deep balanced bass. However, I have a suggestion which has not yet been mentioned.
I recently added isolation under my turntable and improved my LP cleaning regimen. The cleaning seems to have lowered the system noise floor, increasing dynamics and frequency extension, both up and down. The isolation seems to have focused the added information being extracted from the grooves resulting in a more articulate, detailed and richer bass sound, with considerably more impact. Acoustic bass is now sounding much closer to what I hear from very good, coherent full range systems.
I continue to be startled by both the quantity and quality of bass improvement that these two changes produced. And the best thing is that they were not expensive to implement.
I recently added isolation under my turntable and improved my LP cleaning regimen. The cleaning seems to have lowered the system noise floor, increasing dynamics and frequency extension, both up and down. The isolation seems to have focused the added information being extracted from the grooves resulting in a more articulate, detailed and richer bass sound, with considerably more impact. Acoustic bass is now sounding much closer to what I hear from very good, coherent full range systems.
I continue to be startled by both the quantity and quality of bass improvement that these two changes produced. And the best thing is that they were not expensive to implement.