What's your room like? Size, finishes, setup? Small/square/hard with loudspeakers/listening positions near walls are all bad.
Suggest reading Floyd Toole's "Sound Reproduction" (either/both editions) to learn how loudspeakers/subwoofers behave in-room. Toole is recognized as one of the world's leading acousticians. Virtually every room has severe bass peaks/dips. Multiple carefully placed subwoofers is the best way to address the issue.