Does Wilson Sophia Sound good at low volumes?

As I recall, the Fletcher-Munson curve mapped the sensitivity of the human ear, frequency on the horizontal axis and volume on the vertical. As volume decreases, the ear is less sensitive to the low and high end of frequency plot as volume decreases. The "loudness" circuit on some receivers is designed to compensate for this decreased sensitivity at low volumes, increasing the low bass and high treble. For a time, Yamaha even made some receivers with a "loudness" control that was a rotary knob. The idea was you would turn the volume up as loud as you were likely to listen, and then decrease the volume of sound by turning down the "loudness" control...which changed the equalization to increase the low bass and high treble roughly along the Fletcher-Munson lines as the control was turned.