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In the past couple years I've seen a few posts where people made the claim that current day AVRs will digitize any input signal that comes into the unit via an analog input for processing.
Is this true? If it is true, can anyone provide some solid evidence to support this claim?
Reason I ask is that I have a late model Marantz AVR and an Oppo 105. When I am listening to music from any source (CD, thumb drive) in any format (wav, MP3, flac) the sound is very different if I let the receiver convert the digital to analog versus if I let the Oppo convert the digital and feed that into the receiver over RCA cables. If the receiver is digitizing the analog signal then running it through it's DSP and amplifying the signal, I would expect the music to sound exactly the same no matter how I had the digital converted to analog. But when I let the Oppo do the D-A conversion the music sounds very different which makes me think that the ARV is only amplifying the analog input signal and passing it through to the speakers.
Is this true? If it is true, can anyone provide some solid evidence to support this claim?
Reason I ask is that I have a late model Marantz AVR and an Oppo 105. When I am listening to music from any source (CD, thumb drive) in any format (wav, MP3, flac) the sound is very different if I let the receiver convert the digital to analog versus if I let the Oppo convert the digital and feed that into the receiver over RCA cables. If the receiver is digitizing the analog signal then running it through it's DSP and amplifying the signal, I would expect the music to sound exactly the same no matter how I had the digital converted to analog. But when I let the Oppo do the D-A conversion the music sounds very different which makes me think that the ARV is only amplifying the analog input signal and passing it through to the speakers.