Optical Out or HDMI (ARC) - which is best for me? - AVS Forum | Home Theater Discussions And Reviews
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post #1 of 4 Old 03-11-2020, 03:56 AM - Thread Starter
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Optical Out or HDMI (ARC) - which is best for me?

Hi all,

I have a Samsung RU7470 4K Smart UHD TV. Connected into it are an antennae cable (roof aerial), a Virgin Media V6 box (HDMI 1) and a Home Theatre PC (HDMI 2). I want to add a Soundbox (probably either the Q Acoustics M2 or Cambridge Audio TV5 v2).

I had assumed that optical out from the TV to the Soundbar would be the logical choice, but then I read that HDMI (ARC) would keep things synchronised. Both Soundboxes have a HDMI (ARC) socket and the HDMI 3 socket on the back of my TV is marked HDMI 3 (ARC), so I could use this. But ARC seems to refer to an upstream *and* downstream communication, whereas mine is only from the TV to the Soundbox.

I would like the following:
1) Turning the TV on/off will turn the Soundbox on/off.
2) Adjusting the volume using my TV remote adjusts the Soundbox volume.
3) I want the audio from the Soundbox and the Video from the TV to be in sync.

I didn't think that (3) would even be an issue, but it seems it may be.

Can anyone advise what I should use to connect the TV to the Soundbar? I'm rather confused.

Thanks, Paul
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post #2 of 4 Old 03-13-2020, 05:17 AM
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Quote:
Originally Posted by chobbney_1234 View Post
Hi all,

I have a Samsung RU7470 4K Smart UHD TV. Connected into it are an antennae cable (roof aerial), a Virgin Media V6 box (HDMI 1) and a Home Theatre PC (HDMI 2). I want to add a Soundbox (probably either the Q Acoustics M2 or Cambridge Audio TV5 v2).

I had assumed that optical out from the TV to the Soundbar would be the logical choice, but then I read that HDMI (ARC) would keep things synchronised. Both Soundboxes have a HDMI (ARC) socket and the HDMI 3 socket on the back of my TV is marked HDMI 3 (ARC), so I could use this. But ARC seems to refer to an upstream *and* downstream communication, whereas mine is only from the TV to the Soundbox.

I would like the following:
1) Turning the TV on/off will turn the Soundbox on/off.
2) Adjusting the volume using my TV remote adjusts the Soundbox volume.
3) I want the audio from the Soundbox and the Video from the TV to be in sync.

I didn't think that (3) would even be an issue, but it seems it may be.

Can anyone advise what I should use to connect the TV to the Soundbar? I'm rather confused.

Thanks, Paul
I connected my sound bar using an optical cable. I can turn the tv/sound bar on/off, volume, input with one (tv) remote. Used the HDMI ARC and the sound bar on/off was unreliable. Weird!
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post #3 of 4 Old 03-13-2020, 05:33 AM
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Either is fine, they are both digital signals, personally I'd probably go with HDMI and if that doesn't work switch to SPDIF optical.
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post #4 of 4 Old 03-13-2020, 06:16 AM - Thread Starter
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Excellent. Thanks for the help. I'll try HDMI first.
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