General discussion

Connecting IPTV to Home theater system

Nov 7, 2007 9:00PM PST

I have got IPTV recently connected. This is run through a set top box AmiNET125 (

The set top box ( a router) is connected to the AV in of my TV. I have a Philips Home theater system. Earlier I had connected the TV to this system through audio out and TV in. But when the set top box is connected through AV in this does not work.

The set top box has a SPDIF digital output. But the home theater system does not have a SPDIF in. But it has two Audio in sockets for connecting a VCR or other devices.

My question is can I connect the SPDIF output to these Audio inputs? Will it work? I suppose I need a special cable with SPDIF on one side and two RCA connections on the other? Are they available?

From what I saw, SPDIF cables are expensive. I thought I should check up before spending money on such a cable.


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just use the regular red/white rca
Nov 8, 2007 1:58AM PST

audio connections. Even if there was a way to do what you want (not), you wouldnt benefit at all. As for the day you are able to use SPDIF, Monoprice sells em for about $3. They are good quality. Not expensive. Thick beefy insulation, and beefy metal rectangular terminals.

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How to use RCA
Nov 8, 2007 2:12AM PST

The set top box has only a SPDIF output jack. Will the RCA jack fit that? I did not try for fear of damaging something.

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Which cable
Nov 8, 2007 2:24AM PST

I am confused by the variety of cables at Can you tell me a cable name which will serve my requirement?


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No RCA jack on the box?
Nov 8, 2007 3:39AM PST

then you got problem. SPDIF are digital where rca is analog and you HTIB is analog only (right?).

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HTS is Digital
Nov 8, 2007 3:02PM PST

No RAC socket in the set top box. There is only a SP DIF digital output socket. According to the manual this is to be used with an external decoder and amplifier.

The AV output of the set top box is connected to the TV with a component cable.

The Home theater system is a digital amplifier with Dolby 5.1 surround sound. Dolby Digital pro logic II. The Aux in - 500mV TV in - 250 Mv.

Both the inputs are standard two pin RCA.

Now the Aux is connected to my satellite radio receiver.

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Without being there, I can't place my brain as to..
Nov 9, 2007 12:10AM PST

what you got exactly. The problem is not the HTIB but the lack of proper connection; sounds like what you have may already being in used.

This is for your info; the regular audio stereo jacks are color red and white and is usually located in pairs. There is also another audio connection that uses RCA jack..and that co-ax audio (which is digital but not in pair.).

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Problem solved
Nov 9, 2007 8:36PM PST

The set top box was connected to the TV with a composite cable, one for Video and two for Audio. I unplugged the Audio connections from the TV and gave it to the Home theater Audio inputs.

And Hey Presto! Problem solved.

Thank you for the responses.

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