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what is the diference of S/PDIF


redbelo
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Every time you go from analog to digital or digital to analog there's a conversion (ADC/DAC) from a voltage based signal to a bunch of 0's and 1's or vice versa. Each conversion takes time (latency) and slightly degrades the signal, though whether or not that degradation is perceptible is a topic of some debate. 

 

Guitar to Helix = 1 DAC

Helix to Line Out (XLR or 1/4") = 1 DAC

 

S/PDIF eliminates that second DAC.

 

FWIW - I can't tell a difference in audio quality, and consider the added latency to be negligible. YMMV.

 

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ya

3 minutes ago, rd2rk said:

Every time you go from analog to digital or digital to analog there's a conversion (ADC/DAC) from a voltage based signal to a bunch of 0's and 1's or vice versa. Each conversion takes time (latency) and slightly degrades the signal, though whether or not that degradation is perceptible is a topic of some debate. 

 

Guitar to Helix = 1 DAC

Helix to Line Out (XLR or 1/4") = 1 DAC

 

S/PDIF eliminates that second DAC.

 

FWIW - I can't tell a difference in audio quality, and consider the added latency to be negligible. YMMV.

 

but how i do the connection ? from the coax or xlr to the optical that the APOLLO requires ?

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3 hours ago, redbelo said:

what is the diference of S/PDIF and the line out ? I assume S/PDIF is digital , but isent the XLR digital  also ?  what is the diference ?

 

 

You may want to read this if you are not familiar with S/PDIF:

 

https://www.hardwaresecrets.com/everything-you-need-to-know-about-the-spdif-connection/

 

hope this helps / makes sense.

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