Real Sub-bass if more felt than heard. Think earthquake.
Someone explain human hearing of subbass......
I remember my old Pioneer receiver having a "loudness" switch, which basically emphasized the lowest frequencies when playing at low volumes. Is our hearing not as sensitive to subbass frequencies at low volume? If so, how do you equalize this? High end preamps have no equalizer, does this mean you necessarily will not get decent bass at low volume levels?