Is there a difference in Audiuo quality for inexpensive optical cables? - AVS Forum
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post #1 of 9 Old 10-15-2011, 08:02 AM - Thread Starter
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Just wondering if there is a major difference between an optical audio cable that I can get on ebay for $5 vs the $40 brand name cables?

Cable Quality? - connector fittings? durability?
Audio Performance? - if so, would I even notice it on a $400 HTIB system?

It's not going long distance, less than 6 feet.

Current Setup:
I have a Home Theater Audio Receiver system that has HDMI passthrough. Currently the BluRay and the PS3 HDMI interfaces go into the Receiver and then HDMI from the Receiver Stereo to the TV. I want to run the BluRay HDMI directly to the TV and run optical audio from the BluRay to the Home Theater Stereo.

Before anybody asks "why" optical instead of HDMI.. There are two reasons...

1. We don't always want to watch movies with the stereo on.

2. When watching BluRay, HTIB video passthrough seems to flicker from time to time and BluRay NEVER has that problem when we run HDMI straight to the TV. We figured out with the PS3 that is we disable the "Deep Color" setting, there was no flickering, but our BluRay player does not have a setting to disable the Deep Color Output.

So... does anybody have any input on getting an inexpensive Optical Audio cable?
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post #2 of 9 Old 10-15-2011, 08:10 AM
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At <6'... no problem.
http://www.monoprice.com/products/pr...seq=1&format=2
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post #3 of 9 Old 10-15-2011, 08:31 AM
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Quote:
Originally Posted by Ratman View Post

At <6'... no problem.
http://www.monoprice.com/products/pr...seq=1&format=2

Second that. I have that same cable in a 25' length running through my walls. Works perfectly.
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post #4 of 9 Old 10-15-2011, 08:35 AM - Thread Starter
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Quote:
Originally Posted by WilliamZX11 View Post

Second that. I have that same cable in a 25' length running through my walls. Works perfectly.

Awesome!

Thanks guys... just placed my order
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post #5 of 9 Old 10-15-2011, 03:42 PM
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As noted in your identical thread in another forum, using optical means you won't get lossless codecs or multichannel PCM.
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post #6 of 9 Old 10-15-2011, 04:46 PM
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Quote:
Originally Posted by BIslander View Post

As noted in your identical thread in another forum, using optical means you won't get lossless codecs or multichannel PCM.

How noticable do you think that is with a $400 HTIB? He will still get Dolby or DTS 5.1.
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post #7 of 9 Old 10-15-2011, 05:11 PM
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I personally don't find much difference between lossless and the high bitrate lossy codecs on Blu-ray, even on considerably better systems. But, when a person asks if there's a difference between two optical cables, I think someone should mention there's an actual difference in the audio codecs supported by optical and HDMI.
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post #8 of 9 Old 10-17-2011, 10:05 AM - Thread Starter
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Quote:
Originally Posted by BIslander View Post

As noted in your identical thread in another forum, using optical means you won't get lossless codecs or multichannel PCM.

Ok, With my $400 HTIB (Insignia, built by Onkyo), I CAN tell a difference from DD/DTS to DD-TrueHD/DTS-Master, mostly in the quality of the bass and quieter sounds.

But I CANNOT tell the difference from LPCM to DTS-Master and DD-TrueHD... (other than the obivous increase in dB)

I was under the impression that Optical could transmit DTS-Master and DD-TrueHD... so is that not the case??? I lose the HD audio all together???

If so... what are my affordable options?
New HTIB is NOT an option... solution must be less than $100.

HDMI splitter???
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post #9 of 9 Old 10-17-2011, 12:14 PM
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Quote:
Originally Posted by RedJamaX View Post

I was under the impression that Optical could transmit DTS-Master and DD-TrueHD... so is that not the case??? I lose the HD audio all together???

Sorry, but optical does not support lossless codecs or multichannel PCM. So, when playing a TrueHD or dts-MA track, the optical output will be DD 5.1 or DTS and a multichannel PCM track will be downmixed to stereo.

Quote:


If so... what are my affordable options?
New HTIB is NOT an option... solution must be less than $100.

HDMI splitter???

I don't know that there's a solution if you don't want to route HDMI through your surround system. You could try using HDMI splitters from each device - feeding one leg to the HTIB for audio and the other leg to the TV for video. Or, you could use component video from each device to the TV and use the HDMI connections just for audio.
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