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In Reply to: RE: time alignment ... posted by andyr on May 15, 2015 at 23:22:36
Tell us how it goes on the SQ of the DSP units you try out.
I have not yet heard a DEQX, TACT or other high end DSP with good DACs so don't know how to weigh the positive effects of room processing and time alignment against the effects of the digital AD DA loop. My limited experience has not yet shown a net positive relative to PLLXO and physical time alignment.
Follow Ups:
Yes, I was worried too, Satie. Until a mate of mine who has Wilsons and a very high-class vinyl setup tried out the top DEQX rig (the one with an analogue PSU, not a SMPSU) and said that he didn't notice any sonic degradation.
So we'll see if this is so! ;-))
Andy
Satie, it seems like you and I went along parallel trails at times. Once the PLLXO does its good deeds, it is hard to let go of the blessings by allowing DSP in. I've been there and refused to let go of the analog/PLLXO blessings. Which is why the woofers took so long.
Of course, if a room is too challenging to tackle fully in the analog domain, the priorities could be different. Then, DSP could be easily indicated.
Since you have a less common setup, I'll keep this in mind when I write the stuff about the woofers here. Actually, hmmm, don't be surprised if I email you a different version (to spare the others from a longer set of explanations).
I would be happy to see what you were thinking in more detail.
I see that we share many of the same considerations. I can say that my own AD/DA looping on a tascam 800 and the musical fidelity end up sounding so much more like the DAC then what was fed into it (though very good on the MF and good on the Tascam) that there is no way I am convinced this would work for me.
Playing back streaming at 320k was a real let down, but live professional HD uTube recordings do ok and remarkably better than I expected. Converting the 320k PCM into DSD did it a favor in de-edging the sound. But it was not good enough.
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