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Question

USB powered DAC to LN40A630 via Wiselink port?

by highstream99 / February 11, 2013 11:45 AM PST

I'm exploring the idea of hooking a DAC to the Samsung LN40A630 TV to use with a couple of external speakers. The DAC in question is powered via USB, such as from a USB port on a computer. Since the Wiselink port is USB, I'm guessing it would work as a power source, but I figure it's worth asking first. Do I have that right? It would be a passive connection, i.e., I wouldn't be otherwise accessing Wiselink except as a power source.

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All Answers

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Answer
Re: USB powered DAC to LN40A630 via Wiselink port?
by Samsung_HD_Tech Samsung staff / February 12, 2013 12:05 AM PST

Hi highstream99,

It should work just fine, but I'd be cautious of expecting too much power from there ports; they weren't designed for the purpose you'd be using them.

HD Tech

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Re: USB powered DAC to LN40A630 via Wiselink port?
by highstream99 / February 13, 2013 3:13 AM PST

Thanks, I test it and report.

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Re: USB powered DAC to LN40A630 via Wiselink port?
by highstream99 / February 13, 2013 3:30 AM PST

Power yes, but Wiselink recognizes USB storage only. Unless someone else has come up with a method...

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Answer
Should be enough power to power the DAC
by R. Proffitt Forum moderator / February 13, 2013 4:08 AM PST

But that's not exactly what you wanted to know. As there is no PC or support for a device like (link to follow) then can you reveal why you can't use the usual optical or minijack output to the stereo or such?

USB DAC example at http://www.amazon.com/Virtual-5-1-surround-External-Sound-Card/dp/B000N35A0Y/

Optical to Analog convertor example at http://www.amazon.com/ViewHD-Optical-Converter-Simultaneous-Headphone/dp/B007KXI2R8/

http://www.samsung.com/ca/consumer/tv-video/tv/lcd/LN40A630M1FXZC-spec notes an optical output.
Bob

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Re: USB powered DAC to LN40A630 via Wiselink port?
by highstream99 / February 13, 2013 9:46 AM PST
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For the TV side, do I need S/PDIF or TOSLINK?
by highstream99 / February 13, 2013 10:06 AM PST

Since I'm not familiar with digital optical connections and the manual doesn't identify which type the digital optical audio out is, I better ask. S/PDIF or TOSLINK - or are they the same? The Audioengine side is S/PDIF. Thanks,

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Read ...
by R. Proffitt Forum moderator / February 13, 2013 10:28 AM PST
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For the TV side, do I need S/PDIF or TOSLINK?
by highstream99 / February 13, 2013 11:31 AM PST
In reply to: Read ...

Thanks for clarifying that and all your helpful replies! Now with a digital cable, the question would be whether my cable remote volume control will be recognized when the TV's internal speakers are muted. See my other thread, especially where the problem gets clarified toward the end (link below). So far using RCA interconnects off the TV's audio out port, and with the internal speakers muted in Settings, the remote's volume control isn't recognized. Only using the headphone port has worked, because that one mutes the internal speakers by default. See http://forums.cnet.com/7723-13973_102-585405/ln40a630-controlling-volume-of-external-speakers/?tag=StickyWin_1360639545882;createThreadPopup.

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So far.
by R. Proffitt Forum moderator / February 13, 2013 1:02 PM PST

That's all I know. I don't have access to such a set to test all this out but my guess is the volume control is in the amplifier since nothing I know about SP/DIF is about volume control. Just moving the bits over. To change the bits on the fly for volume would induce a delay and well, that's what we see complaints about all the time. If you need to learn more, google "Lip Sync Issues."

Hopefully what I supplied helped a little.

Bob

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