Digital/coax cables vs HDMI cables for sound - AVS Forum
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post #1 of 4 Old 01-09-2013, 10:05 PM - Thread Starter
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I bought the Onkyo Ht-RC460 and replaced a 5-year old Ht-SR800 that couldnt do any kind of HDMI processing or upconversion. I used a coax cable for the cable box and an optical cable for my DVD player. With the Rc460, I was wondering which option would sound better: continuing to use the optical/coax cables or running sound and video thru HDMI. I read somewhere that running through HDMI would support Dolby Digital Plus, TrueHD, and DTS HD. I want to make sure I'm getting the best possible sound with my new receiver, so if I need to scrap the optical/coax cables and run everything through HDMI I'm willing to do that. Thanks!
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post #2 of 4 Old 01-09-2013, 11:00 PM
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You'll get the same sound from your cable box and DVD player as you would with HDMI. But if you have a Blu Ray player and discs you'll be able to get TrueHD and DTS-HD with HDMI audio. Optical and digital coax cannot decode lossless audio.

Do you have a Blu Ray player or just DVD?

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post #3 of 4 Old 01-10-2013, 05:47 AM - Thread Starter
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Just a regular DVD player, thanks! Later I plan to get a Blu-Ray so I'll change the audio to HDMI. Also, what about Xbox 360?
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post #4 of 4 Old 01-10-2013, 07:35 AM
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Xbox does not have lossless audio. So, there's no sonic advantage to HDMI. But, why bother with all the extra cabling and input switching when HDMI carries both audio and video?
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