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I2S, S/PDIF, Toslink connections

In searching for a new DAC the input choices are many. There are several ways in which inputs can be connected to a DAC and this can be compounded when an USB/SPDIF converter is inserted between computer and DAC. I wish to learn more regarding the SQ as afforded by these inputs.

Specific questions:
I am of the understanding that coaxial is superior to toslink when connecting CDP to DAC. Is this true?

What is an I2S connection and what are advantages to this option? Uses an HDMI cable i believe.

Thanks in advance for helping with my understanding.
mesch
cymbop
315 posts
 
Steve, the only _input_ on the OR5 seems to be USB. And there's no USB Out from a Squeezebox Touch.
audioengr
3,282 posts
 
Cymbop - Actually you can stream USB output from SB Touch, but it requires a USB converter with Linux driver compatibility. The HiFace2 will work.

If you wanted to reduce jitter from S/PDIF coax or Toslink, this can be done with a reclocker like the Synchro-Mesh. Unfortunately, there are none with I2S outputs .... yet.

Steve N.
Empirical Audio
item
5 posts
 
Quick update on this. Reassuringly I2s is really catching on. These manufacturers (at least) offer I2S inputs or converters:

  • Pink Faun
  • Sonore
  • Wyred4Sound
  • PS Audio
  • K&K Audio
  • Audiobyte / Rockna
  • Wadia
  • Love Harmony
  • MSB Technology
  • Empirical Audio
  • Northstar Design
  • LKS Audio
  • Ayon
  • Stello
  • Audio Alchemy
  • Perpetual Audio
  • Camolot
  • Aquasound
  • Audio-GD

rja's avatar
rja
2,357 posts
 
Way, way back I used I2S cables on Audio Alchemy gear.
coli
291 posts
 
AES/EBU is the best short of IP audio.
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