I see the same thing on a Sony TA-E9000ES.
-50 dB for music CDs (maybe 10 o'clock on the volume dial), and -30 or so for DVDs (maybe 11:30). (I have medium sensitivity speakers.) One issue might be the noise floor of a unit, if it's a function of the volume knob setting. (On the Sony, never noticed that. I wouldn't think it would be a big deal on the Outlaw either.)
Another issue might be low sensitivity speakers combined with underpowered amps. Maybe then you'd see a difference between CDs and DVDs. Distortion and such, or just an inability to play a movie soundtrack as loud as you wanted.
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