Baldr
Sponsor: Schiit Audio
- Joined
- May 14, 2011
- Posts
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Funny how Hifiberry offers galvanic isolation for 5 bucks, whereas Mike suggests "galvanic isolation solutions can cost in the $500-nearly $2000 range". Is it possible Hifiberry's galvanic isolation is poorly done?
That's why I said the $5 likely isn't worth it, if Mike is saying good isolation costs 100 times that amount.
I have edited my above post re galvanic isolation to stress that those comments and costs were proper to USB sockets only.
The output of the Raspberry Pi is S/PDIF. Proper S/PDIF design for prosumer and above digital out gear uses transformers, which give you inherent galvanic isolation. Although I have no idea which transformer Raspberry Pi uses, many such lower end designs use ethernet transformers, which are ubiquitous and cheap.
So the clarified response:
S/PDIF galvanic isolation can be had for a very low production cost.
USB2 galvanic isolation is significantly more complex to properly accomplish, and therefore much more expensive.
Sorry for the confusion!
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