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Join Date: Oct 2006
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Since you have a sub(s) this implies to me you use digital circuitry inside the Marantz AV7703, at least for bass extraction out to the sub(s). [also DSP is used for Audyssey room correction EQ and speaker channel delays, "distances"] so this means if you connect an external DAC via analog connections the Marantz will re-digitize that incoming signal via an ADC in order to apply these digitally based adjustments.
So you aren't fully bypassing the internal DAC plus you are now passing through two DACs, and an ADC, whereas incoming digital signals to the Marantz [i.e., no use of an external DAC] would avoid these extra steps.
All these added steps may introduce added hum, hiss, distortion, and frequency response errors. Hopefully this added noise will be too low to notice.
"Pure Direct" will bypass this digital stuff for the analog inputs on the Marantz but then you have no sub out for stereo content, no distance correction, and no Audyssey room correction EQ, I think.
In A/V reproduction accuracy, there IS no concept of "accounting for personal taste/preference". As art consumers we don't "pick" the level of bass, nor the tint/brightness of a scene's sky, any more than we pick the ending of a novel or Mona Lisa's type of smile. "High fidelity" means "high truthfulness", faithful to the original artist's intent: an unmodified, neutral, accurate copy of the original master, ideally being exact and with no discernable alterations, aka "transparency".
Last edited by m. zillch; 04-06-2020 at 06:34 PM.