Using a 5.1 surround, mostly with the "Home Theatre" sound option, I usually have to turn the volume up for ED. When playing late, I tried the "Night" sound option, and... The Bass almost exploded; I'm sure all the neighbourhood woke up (I Was using the Basic Discovery Scanner)
BTW, there's probably too much bass in the Basic Discovery Scanner sounds (At least compared to the other ones): If I turn the bass/volume to an acceptable level for the discovery scanner, I barely hear the bass of my FSD/Boost. I think the three sounds should have comparable levels of Bass
Using analog cables, and the MB embedded soundcard (Realtek ALC1150 I think)