I've experimented some more with different curves in my MLP -- to me this preference does change
slightly depending on the particular speaker, treble quality, bass extension and quality, xo points, and usual listening volume... For example with the KH120 I can have the treble on neutral (or even be boosted) and be fine, but the LSR305, shelving of the treble is an absolute
must. This is the latest "curve(s)" that I am liking for both music and movies nearfield over the desk:
Currently, at my higher crossover point config setting of 120Hz, I changed my (base)
Reference Volume to 100%. Meaning, the loudness DSP comes into effect automatically when volume is set lower than 100%. Originally, when I had my xo at 80Hz, I preferred to have this around 70%.
My normal listening volume is still at 70% or ~74dB (see cursor at the red line).
Right now, I am listening to
Muse's "Hysteria" on Spotify at full volume -> routed to JRiver's WDM driver and playing at 15% volume. At this very low listening volume, the music still sounds extremely balanced from bass to treble.
I can still hear music at 10% volume, too, but it's so low that you can't really appreciate it even with the aid of DSP. If you want to tone down the effects of the loudness DSP, just lower your Reference Volume to maybe 70% or 60% etc. -- or even turn it off with a click of a button. I have not explored other software e.g. Foobar2000, but they may have a dynamic loudness DSP (plugin?) too...