At 2 meters. 6.5 ft distance, 67 dB, peak 84 dB:
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Same song, I didn't change the volume on the DAC/Amp, 3.5 meters, 11.5 ft, 69 dB , peak 87 dB:
View attachment 343309
It's a little, but not much, louder than my normal listening volume. I just wanted to test at different distances. It's the same dB then. The small differences can
probably can be attributed to that app accuracy, plus if I affected the microphone (that regarding top , the peak value). I can do a lot more measurements and draw an average value, but I think this shows that distance in a normal listening room (if my room is), you don't need to increase the volume to experience the same loudness at a longer distance.