If the dac has a volume control, in theory yes, but you would be using 2 pre-amps - the one in the dac plus the one in the LFD. You would have to preset the LFD volume, say at 50% and then play with the volume on the dac.
Not a very good idea sound wise, but it should work. Typically, you would set the volume on the dac to 100% or bypass it altogether.
Not a very good idea sound wise, but it should work. Typically, you would set the volume on the dac to 100% or bypass it altogether.