Devialet pro and Chord technology

[Jean-Marie]

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I do not know how internally 1000Pro handle digital and analog signal input and to which extend the dac chip is involve with analog input.Would be interesting to find out.

The Devialet runs all analog inputs through an ADC, by default at 24bits/96kHz (which i believe you can configure to 24/192 in the configurator if I remember correctly) and then handle them as any other digital stream or input.

The ADC -> DAC operation is fully transparent except that low pass filter around 48kHz to avoid aliasing (96kHz if you use 24/192), so I am not surprised that the Devialet lets any characteristics of the analog sources connected to it faithfully flowing through. 

Jean-Marie

We have communicated before and I value and respect your knowledge about high end audio.  Since this topic has come up again, let me rehash the issue.  If the chord Dave and M scaler work so well with the 1000 pro, would it be safe to assume that so will the dCS Vivaldi Upsampler? Thank you

Yes it would for whatever happens in the frequency range below 48kHz (or 96kHz depending on how you configure it) and to the SNR and THD corresponding to 24bits which is around 144dB.

After that it is a matter of opinion, some people are convinced that what happens beyond those frequency matter, other don't (I belong to the group that considers that what happens beyond the bandwidth of the ear is at best irrelevant and at worse detrimental if improperly handled, but be aware that this position is not universally accepted within high end audio).

I am also of the opinion that the ADC and DAC stages of most equipment (unless grossly mis engineered) is absolutely transparent to the ear and therefore what matters are the filters and the analog stages of the equipment. 

This is what make de Devialet a unique amplifier and if the dCS Vivaldi Upsampler is bringing you benefits, I would assume that they are coming from the analog and/or filtering stages and therefore would faithfully be carried through by using the Devialet as a pure amplifier. 

it would be ideal if you could test it on your own system before taking the plunge, because at the end of the day, what really matters is the perception that we have within our environment. 

Jean-Marie