romnation

I realize how dangerous this could be if something else were to generate a sound at the full volume of the output, but would this work theoretically without damaging the speakers? Running straight from a DAC without volume control (such as Bryston BDA-3) straight into an amp only amp with only high level inputs. If I use only the volume control in say foobar2000, would this be possible?

I have a CAPS server, and I was just curious, is it best to leave the machine powered on 24/7 or is using sleep mode when not at the machine okay? I know many devices like preamps, dacs, etc, sound better when left powered on 24/7, so I was wondering how this relates to music servers.