Nothing replaces moving air. I play my KPA through a 212 in my living room with the TV on or the baby asleep in the same room. I used to have my 5150 and 212 in the living room in my old house and did the same. Modern channel switching amps can usually get down to conversational volumes no problem, especially newer ones like the 5153 50w. And you can compensate with resonance and presence controls at lower volumes to get thump (not boomy) and clarity to taste. Otherwise, good studio headphones and adjust the tones accordingly (as aforementioned).