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Thread: Wiring up a home cinema system.....

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    mush-mushroom b0redom's Avatar
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    Wiring up a home cinema system.....

    Hi All,
    Just after a bit of input on this one by minds more experienced than I. I've got a Samsung LCD (UE48B8000) TV connected via HDMI to a Denon AVR-1910 amp.

    The amp is used to switch inputs for PS3/Xbox/PVR/HTPC.

    I've read recently somewhere that as modern TVs do some processing on the video signal it might make more sense to wire the HMDIs direct to the TV and have optical out from the TV to the amp.

    Is there any advantage/disadvantage to doing that? The inlaws swear blind that there's a minor sync issue, but it's not something I've noticed personally.

    Does optical out lose me DTS-HD? Any other reason I should go one way over another?

    Thanks in advance.....

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    Headless Chicken Terbinator's Avatar
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    Re: Wiring up a home cinema system.....

    Quote Originally Posted by b0redom View Post
    Does optical out lose me DTS-HD?
    Yes.
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    Nefarious Networker Dareos's Avatar
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    Re: Wiring up a home cinema system.....

    i get a minor sync issue with my Onkyo and the same TV (i take it you mean UE46D8000 as there is no 48" /pedantic off). There will be an AV sync option somewhere on the Amp, just adjust it by +/- 100 ms or so. Its best to try and sync when listening to sounds rather than speech, like someone knocking on a door, very hard to sync lips with speech.

    awesome tv btw
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    mush-mushroom b0redom's Avatar
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    Re: Wiring up a home cinema system.....

    Whoops, yeah 46, but it's B not D. Mine is a few years old now - one of the first edge lit ones to come out. Every so often I look at the F8500 series....

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    Re: Wiring up a home cinema system.....

    Quote Originally Posted by b0redom View Post
    Does optical out lose me DTS-HD? Any other reason I should go one way over another?
    DTS-HD works over optical, same with DD+, providing the amp and TV are new enough as the original optical standard only supported up to 20 bit 48 KHz, but it was tweaked when HD video took off.

    What optical doesn't support is the lossless DTS-HD Master or Dolby TrueHD formats.

    Although DTS-HD Master is a dual stream of DTS-HD and the additional info to scale up to Master, so would just play as DTS-HD. Dolby TrueHD doesn't run in dual-stream, but is a optional codec so there would be a (possibly DD+) stream for it to play.
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    Re: Wiring up a home cinema system.....

    It's usually better to run everything via the amp and just use the tv as a monitor.

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    Re: Wiring up a home cinema system.....

    Quote Originally Posted by jimborae View Post
    It's usually better to run everything via the amp and just use the tv as a monitor.
    Not being an expert, but I'd have thought the same. Wouldn't the TV do it's post-processing regardless of the source? Just tweak the audio sync on the amp (or turn off some of the post-processing if you aren't upscaling).

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