They don't need to be cranked to sound good. The tone is coming from the preamp.
If people are at the other side of the house then you'll be fine with running the volume just below 1. Sounds good at this level, though there is a quite a volume jump from 0 to 1. Have to dial this in a bit carefully. At whisper quiet levels with someone sleeping or studying in the next room, it's not ideal.
Volume knob between 1-2 is easily enough to piss other people off living in the same house. Unless you are on a large property or alone, above 2 is out of the question.