A Tale of Two Cambridge Audio Edge Amps

The only reason for 2 parallel stereo DACs is if you have 4 ears. And two amps, 4 speakers. Go for it.

I would retire the noisy PC. And have. A lowly Node outperforms it.

Well they share the exact same amplification stage.  If you have no other way to control volume (e.g., not intending to use a preamp), then I'd say get the Edge A for that reason alone (don't use PC).

Obviously you'd not be using both the external DAC and the DAC of the Edge A. Try both independently (when using the external DAC run the DAC's output to analog inputs (RCA or XLR) of the Edge A, not to the digital input.  My guess is your external DAC will perhaps sound better but you never know.

I own the Edge W and like it very much, paired with the Edge NQ streamer/dac/preamp.

Good insights. 

Kren0006, since the Edge W and Edge A share the same amplification stage, the only difference in both would be the DAC section. The current Denafrips DAC is quite the performer , judging not just by positive reviews but personal experience with it has been one of the reasons to dip my toes in the audiophile world. 

Now, I do plan to hang onto streaming directly over my pc to the DAC/Int Amp, the addition of the volume control on the Edge A was practical advantages over limited control over volume from the pc, which can be slow and inaccurate for the most part. 

Either way, the SQ of the amplification stage in both configurations is what is most important. Paying a bit extra for the volume control and remote functions for pure convenience purposes in the future may be worth the extra investment. 

Personally I think you'd improve the sound of your system by moving away from the PC and investing in something like a Lumin U1 Mini with the Sbooster power supply. The Lumin has a proprietary volume control that people are using to replace expensive high-end preamps to good effect. 

Then I'd get the Edge W and drive it straight from the Lumin, assuming you're OK with one source. To my way of thinking, that resolves two weaknesses and ought to sound fantastic.

I love Cambridge gear!