My take is that Noble100 (Tim) is the "smartest man in the village" with educated insight. I look to see more of his posts. If the penchant of the OP is excellent bass response in a small speaker, I will offer two alternatives: Joseph Audio Pulsars or Dynaudio C1 speakers... pretty flat down to the low 40 hz realm. I recall hearing the Pulsars at an audio show driven by a Rogers tube amp (!) and the bass response from these stand mount speakers was astounding, with gut-wrenching bass response. Ditto for Dyn's. The JA Pearls go down to 25 hz, but are +$20K and are hulkingly large speakers.
As Tim cogently informs us, your goals of having smallish speakers with the bass response that is your goal defies the laws of physics. I personally would not need a subwoofer for the Pulsars or C1's in a modestly-sized room as I am a lover of sublime mid-range response, but the addition of one or two REL subs to a pair of fine stand mount speakers will fulfill your needs very nicely, but still get you response only to the mid 30s hz. I use a REL T-7 with my Spatial Audio M4 Holograms and it rounds out the LF response extremely well.
