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Can someone tell me why they aren't using optical and coaxial for outputting

audio instead of limiting it to HDMI? The bandwidth specification of both optical

and coaxial is 125Mbit/s (right or wrong?). So why force consumers buying

HDMI equipped receivers when they already have the technology capable of

producing it. I use HDMI for audio and video and I can't push on this issue. I am

just wondering why
 

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Easy: Toslink & the S/PDIF standard does not support it. So, no S/PDIF capable devices 'already have the technology.' This has nothing to do with cable bandwidth. HDMI is the current interface standard; S/PDIF is obsolete from an engineering point of view.
 
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