Mo, my own listening practices for classical music are similar to those Eric describes and I do want to hear pp or ppp moments somewhere around 50dB, for the effect the composer intended. This uses less than a hundredth of a watt, and even on my most dynamic classical recordings the brief peaks are within the capabilities of my receiver, so I need nothing more, since unused headroom is simply that: unused. The highest max I ever measured was 104dB.

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Enjoy the music, not the equipment.