#191's inverse-distance gain replaces the linear fade for a positioned stereo sound rather than adding to it, so it is as loud as a mono sound at the same distance (both curves together left it some 7 dB quieter at 40 units and 15 at 60), and it is the fade the reverb send takes back out, so the reverb follows the 3D room rolloff as a mono sound's does. A 3D sound is not cut off at the tag's maximum distance either: none starts past it.