For me, having a flat response down to at least 30hz is also for hearing the space the music was recorded in. I like listening to a lot of live recorded jazz tracks and such and find the low bass replays the resonance of the particular room of the performance. i.e, one live jazz album I have sounds as if it was played in a venue in a high rise building on a windy day. There is just that low frequency resonance that you get in such a building. Or I was once listening to a track of a choir in an old large church and there must of been a truck passing the road outside the church. It had that unique sound of outside traffic noise passing through the thick stone walls of an old church.
Maybe some people think such sounds will subtract from the music... but to me it adds to the sense of 'being there'. And individual tracks have their unique character that regard.
Maybe some people think such sounds will subtract from the music... but to me it adds to the sense of 'being there'. And individual tracks have their unique character that regard.