It would help if the receiver had multiple choices of LF cut off frequencies. My Technics is rather useless, 200, 150, and a 100 Hz are my only 3 choices so integrating a sub for music is noty possible for me. But for those of you who have receivers that can adjsut the cuttof in steps of 10 Hz from around 50 to a 150 Hz, one should be able to integrate the sub with the speakers properly in terms of music.
For HT, my towers speakers are set to small and I don't care if the sub runs a little on the hot side