09-Jul-2019, 10:58
(08-Jul-2019, 20:59)thumb5 Wrote: I vaguely remember hearing a while back that the volume control was arrange so that 0 dB was full rated power when the input levels were at max - for a digital input at least I suppose that's pretty well defined. (I don't think I'm making that up...) Maybe it has some additional gain available to handle lower-level inputs? Another question to add to the growing list for Mathieu, perhaps.
Yes, I also usually listen with the volume control in the range -40 dB to -20 dB, with rare exceptions usually for orchestral music, and I don't think I've ever ventured above -10 dB. My speakers are meant to be 87 dB at 1 m for 2.83 V input and have nominal 4-ohm impedance. If I've got the maths right that means 84 dB at 1 W.
Interesting thought about whether/how the dynamic range indication in Roon might relate to crest factor. It makes me wonder what the DR value would be for the PanSonic track used in the video.
IIRC from 0dB and up on volume control the Devialet DSP applies digital amplification so mathematically changes the input signal to make it ‘louder’. Of course the chances of the input signal clipping over 0dBFS become larger here and thus one’ll see the clipping indicator more often.
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