I know that you’ve said several times that you don’t want to “feel” the bass, you just want to support the bass. In critical listening it is important not to notice a subwoofer present, but the fact is the artist may have inserted underlying deep bass via a synthesizer that you are unaware that it even exists. I’m not sure what music you listen to, but if it is jazz and classical, there won’t be deep bass that you will feel (but upper bass may give you a bit more definition or slam), unless you listen to pipe organs. I’m not sure how deep your speakers go with solid output, but if it’s in the mid 30 Hz range, that will cover most instruments and I understand your desire to support that.
Obviously, I can only tell you what I was looking for. I like classical, and I really like pipe organ music. I also like many artists that use synthesizers to get their message across. I too did not want to notice that a subwoofer was present, yet I wanted to find out what I was missing. Turns out, I was missing more than I ever thought possible with the music I play. And 16 Hz pedal notes you will FEEL (and will hear cycle separation with good subs). For other genres that incorporate synthesizers, a whole new world was opened for me. And yes, I wouldn’t know a subwoofer was present because I cross my sub over very low. I was only looking to reproduce what my speakers could not. Your usage may be similar or quite different, but in order to hear an improvement in such a large volume, don’t go too small or too cheap.
Music area: Magnepan 3.6, McIntosh MC2205 amp & C48 preamp, SVS SB13-Ultra, Oppo BDP 95, dbx 3BX, and assorted equipment.
Movie area: EMP Tek E5Bi (were rebadged to R5Bi), RBH/EMP Tek R55Ti, PSA S3000i, Denon X2000, Oppo BDP 83.