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Pictures of Your Portable Rig (part XVI) - Page 63

post #931 of 13896
Quote:
Originally Posted by Achmedisdead View Post

Those 'phones are beautiful, RAFA beerchug.gif

 

Thank you sir.

post #932 of 13896
Quote:
Originally Posted by rudi0504 View Post


... as transport dx 100 or my iPhone 4 S can not compete again
AK 100.

Honest technical question: If you have an external DAC doing D/A conversion, would the transport have any impact on sound quality? I've often wondered that and I'm not sure if I'm overlooking anything, but I would have assumed that the transport is merely providing digital infomation to the DAC.

post #933 of 13896

I gotta admit I was wondering the same thing.

post #934 of 13896
Quote:
Originally Posted by sepinho View Post

Quote:
Originally Posted by rudi0504 View Post


... as transport dx 100 or my iPhone 4 S can not compete again
AK 100.

Honest technical question: If you have an external DAC doing D/A conversion, would the transport have any impact on sound quality? I've often wondered that and I'm not sure if I'm overlooking anything, but I would have assumed that the transport is merely providing digital infomation to the DAC.

Believe it or not, it is somehow possible. It depends on the interface between the transport & the DAC source.

I'm on my iPhone Tapatalk now but if you guys search for Shigzeo's review of the early Go-DAP 4.0 with firmware 1.04, you'll notice he did measurements of (something, can't remember what now) vs the CLAS as transports out to external DAC.

The very same iDevice, depending on whether it's using the Go-DAP or CLAS, outputting to an external DAC/Amp sounded quite different. The Go-DAP sounded quite dull. VentureCraft issued a firmware update v2.0 to improve the situation & did a commendable job but still couldn't match the CLAS.
post #935 of 13896
Quote:
Originally Posted by turokrocks View Post

Honest technical question: If you have an external DAC doing D/A conversion, would the transport have any impact on sound quality? I've often wondered that and I'm not sure if I'm overlooking anything, but I would have assumed that the transport is merely providing digital infomation to the DAC.

 

 

Anybody can help?

posted  :

http://www.head-fi.org/t/633511/pictures-of-your-portable-rig-part-xvi/930#post_8985711


It sure can. If the timing is off it can lead to sound degradation (jitter).

post #936 of 13896
post #937 of 13896
Quote:
Originally Posted by AnakChan View Post

Here's Shigzeo's link on it with graphs, etc
http://www.touchmyapps.com/2012/05/18/cypher-labs-algorhythm-solo-vs-venturecraft-go-dap-unit-4-0-digital-output/

Thank you AnakChan (it will take me sometime to process all the info in the above link), but what is your personal take on this?

post #938 of 13896
Quote:

Honest technical question: If you have an external DAC doing D/A conversion, would the transport have any impact on sound quality? I've often wondered that and I'm not sure if I'm overlooking anything, but I would have assumed that the transport is merely providing digital infomation to the DAC.

 

 

Amarra / Audirvana users would state that a Mac OS X-powered device using Amarra / Audirvana will deliver a cleaner PCM audio stream than the stock software.

http://www.audiostream.com/content/media-player-qa-q6-it-more-beneficial-handle-upsampling-media-player-or-dac

http://www.amr-audio.co.uk/large_image/MAC%20OSX%20audio%20players%20&%20Integer%20Mode.pdf

 

"Modification philosophy":

http://soundcheck-audio.blogspot.co.uk/2011/11/touch-toolbox-30.html

post #939 of 13896
Quote:
Originally Posted by turokrocks View Post

Thank you AnakChan (it will take me sometime to process all the info in the above link), but what is your personal take on this?

 

I've personally heard the Go-DAP at fw 1.04 and fw 2.0 and even noted in my review (at 1.04) that it sounded flat :-

http://www.head-fi.org/products/venturecraft-go-dap-4-0/reviews/6781

 

All I can say is that I heard a difference between the Go-DAP and the CLAS but as you probably know me, my audio techie skills are still in its infancy so I couldn't explain why I was hearing the difference. Shigzeo helped in educating me in that. But note that I'm hearing 2 explanations :-

 

1) jitter (which you just gave)

2) Go-DAP's awkward 44.1kHz -> 48kHz upsampling (from VentureCraft themselves)

 

fw 2.0 doesn't fix the constant upsampling but somehow "works around" the flat/dull sound.

 

 

Quote:
Originally Posted by turokrocks View Post

 

 

Amarra / Audirvana users would state that a Mac OS X-powered device using Amarra / Audirvana will deliver a cleaner PCM audio stream than the stock software.

http://www.audiostream.com/content/media-player-qa-q6-it-more-beneficial-handle-upsampling-media-player-or-dac

http://www.amr-audio.co.uk/large_image/MAC%20OSX%20audio%20players%20&%20Integer%20Mode.pdf

 

"Modification philosophy":

http://soundcheck-audio.blogspot.co.uk/2011/11/touch-toolbox-30.html

 

 

I can tell you I've heard the difference between iTunes & Audirvana+ too for the very same track file. Again, I can't explain but can just say I've heard the difference. A+ is now my default player (but integrated to iTunes).

 

Anyhow, kinda drifting away from the pictures thread. Feel free to PM me or redirect me to another thread about this conversation. Though OT here, it's nevertheless interesting.

post #940 of 13896

kind of pic of my transportable rig - or at least the player wink_face.gif

 

 

 

1000

post #941 of 13896

Look forward to seeing this thread Christmas day :P

post #942 of 13896
Quote:
Originally Posted by marko93101 View Post

Look forward to seeing this thread Christmas day :P

 

Good point. wink.gif

post #943 of 13896

 and 

post #944 of 13896
Quote:
Originally Posted by nc8000 View Post


It's designed to be like that so it'll be fine. Sysconcept make some of the best optical cables around but make absolutely certain that your communication is 110% accurat as they will not admit to any mistake

 

It's designed to handle that much tension? (look at the photo). How about the jacks on the player/amp? Seems like one that's half an inch longer would be perfect.

post #945 of 13896

1000  MERRY CHISTMAS AND A HAPPY NEW YEAR TO ALL HEAD FI MEMBERS.I do enjoy the Tera Player!!!

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