Below is my response to Kuja's post, which he copied from here 1:1 to my DIY-Audio thread.
> Hi Kuja. > > I just read a bit about the Naim DAC. > > The Naim DAC (2600 + 3500 for ext. PS) is a very special animal. > It runs a Sharc processor and plenty of storage inside . The whole > stream will be stored, the sample rate analysed and then reclocked. > No PLLs are used just 10 different fixed frequencies. > > Great design, as far as I can see. I'm not sure if there is another > design like that out there. They really intended to get the input > jitter out. > > My expectations would be that the DAC should not show any difference, > doesn't matter what you feed!! > Naim even recommends Toslink, which proved to be inferior to SPDIF-Coax > in many other occasions, to avoid ground loops. > > The only question then would be why a Touch sounds different in > different configurations? And equal on local operation to the DACs > internal USB operation. > > I can't answer that. Assuming the DAC does a close to perfect > reclocking, > the only explanation might be that after applying my Toolbox (at the > grade you've done it) is not working bit-perfect anymore. > > There is one more: If I understood it correctly the Naim DAC kicks in > an ASRC on rather instabil inputs. That one might cause different > results. The question is then what would be the instabil input. > > > It is really hard to tell. What I can tell is that TT2.0 is by far not > the end of the story. As you can read over here tweaking the network > makes a huge difference. Turning the screen off is considered by many > one of the major tweaks. And of course I don't want to talk about the > stuff I still got under testing. > > I just had the chance too listen quickly to the Meicords ethernet > cable > btw. Those cables cause again a better resolution on rather standard > DACs. > > > I also listened quickly to a TT2.0(sw only)-Touch->BigBen->Antelope DAC > setup the other day. The Big Ben reclocked the stream. > The Big Ben setup seemed to be better ( I just listened a track or two) > on the first glance then the basic TT2.0-Touch->Antelope setup. But > please don't nail me on that. That was my first impression. > > As I always say. The key issue is to find a DAC which kills the > incoming > jitter. All my mods and audiophile SW players will become obsolete if > that happens. I'm more than looking forward to it. > > > And - if I want to go the SD-card route I go for the EC-Designs > solution or similar like Bunpeis player. > > My goal is to go for an iPad controlled audiophile network solution at > best price/performance ratio. So far I'm more then pleased with the > result. > > > I always said, proper reclocking or slaving the PC or transport to the > DAC plus galvanic isolation will supposedly be the best solution of > all. > I guess Naim did a big step into that direction. They even found a > great clocking mechanism to avoid PLLs. It's time for others to > follow. > > Cheers Let see how the discussion continues. -- soundcheck 'soundcheck's Touch Toolbox 2.0' (http://soundcheck-audio.blogspot.com/2011/01/soundchecks-squeezebox-touch-toolbox-20.html) || 'soundcheck's Touch Toolbox - Beta Blog' (http://soundcheck-audio.blogspot.com/2011/01/soundchecks-tt-beta-blog.html) ------------------------------------------------------------------------ soundcheck's Profile: http://forums.slimdevices.com/member.php?userid=34383 View this thread: http://forums.slimdevices.com/showthread.php?t=84742
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