Advice to Connect PC, STB, TV and X360 to a A/V Receiver!

nitroman

nitroman

Audiophyte
Hi guys,
I want to connect my PC, my X360 and my TV through a receiver to my speakers.

In order to keep things clear this is what I have:
- Speakers: Jamo S606 HCS3
-Receiver: Pioneer VSX-418-S
-TV Station: Samsung LE40M86BD
-PC(Sound Card): Sound Blaster® X-Fi Platinum - Fatal1ty Champion Series
-Xbox 360: Elite model

Here is how I have set up the connection:
The Xbox is connected to the TV through an HDMI cable.
The TV is connected to the receiver through an optical cable.
The PC is connected to the receiver through a SPDIF cable.

Here are my questions:
1. The Xbox is set on Dolby Digital 5.1. Should I connect the Xbox directly to the receiver to have a direct connection or it’s the same if, first, it’s going through the TV?
(In case some wonder, the solution would be leave the Xbox connected to the TV through the HDMI cable and mute the TV. Then, using the HD AV Xbox cable I would connect only the audio jacks directly in the receiver).

2. The PC is connected to the receiver through a SPDIF (coax) cable. My main concern is that when I run the speakers test from the SB’s software “Rear” is heard in the “Front” speakers too. Now, I’ve read in this post the following: “The thing to remember about digital is that for ordinary, uncompressed sound, it will only carry a stereo signal. So, if you like to use CMSS with your music, or you try the speaker test function, optical/coax is useless as you only hear the front left/right speakers.” I searched the net about this issue, but couldn’t find too much info to get my head clear about this. Is this true in my case? Should I leave the test button alone?
I also read: “PC games usually use technologies like as EAX to create surround sound, not Dolby Digital. So even if your speaker system has a Dolby Digital decoder, it will be of no use when playing games. The EAX processing is done on the soundcard, and the 6-channel sound is output via the analogue (or digital DIN if available). So you still need analogue connections to your digital speakers for games, if you just use an optical/coax cable you will only get the front left/right sound.”
I add that when I play music all speakers seem to sound ok. I haven`t tried (yet) to play a DVD movie to see if the sound is DD or DTS or, in case of games, EAX). To be more precise and stick to the point, I use the PC (more precise, the PC’s sound card) mainly for games. I want to take full advantage of EAX or similar features. I’m afraid that I’ll hear only a 2x stereo or something. So, the question: Is what I quoted above true? Should I use analogue connections or digital in order to have the benefit of EAX and other technologies alike?

3. I have a STB box from my cable TV provider. The STB is connected to the TV through a “SCART” cable (something like in this picture). Remember that the TV is connected to the receiver through an optical cable. Should I leave this like that or should I connect the STB’s audio directly to the receiver for the best sound? (The STB has two audio-out RCA outputs, so I could use them)

4. Taking into consideration what devices I have and what I want has anyone any suggestion for a better connectivity? (I thought about: STB-RECEIVER using 2xRCA cable; X360-RECEIVER using HD AV cable; PC-RECEIVER using OPTIC cable if the quoted stuff doesn’t apply to me OR STB-TV using the SCART cable; TV-RECEIVER using OPTIC cable; X360-RECEIVER using the HD AV cable and PC-RECEIVER using 3 ANALOG (jack-RCA) cables.

Best regards,
Andrew
 
S

santeini

Audioholic Intern
Based on your receiver model, you should connect the x box direct to the receiver via digital in put for audio and composite for video. Your pc connection is correct but i think you must set the pc sound to 5.1 out (you have to do this at the pc) and finally connect the STB to the receiver. Than connect the composite out from the receiver to the tv composite in.If you require the tv to produce the sound from the receiver, connect the L/R tape out of the receiver to the tv.
 
nitroman

nitroman

Audiophyte
I finally managed to make all the connection to use the full output of all the devices. Here is how I set them up:

1. I connected the Xbox to the TV through the HDMI cable for best video results (the TV is MUTE) and, using the Optical/RCA adapter supplied with the Xbox, I connected the Xbox to the receiver through an optical cable.

2. I connected the PC to the TV through an HDMI cable for best video results (I have an 8800GTS 512MB video card and I used an HDMI to DVI adapter). For the audio side I used 3 stereo 3.5 (M) to 2x RCA cables (all the quotes in my first post seem to be true, the sound test works now, also, I can enjoy EAX and all the other technologies that are processed by the sound card (reason for which only the analog outputs must be used))

3. I connected the STB to the TV through the SCART cable for video and I connect it to the receiver through a SPDIF cable (coax digital) (since the STB does all the decoding, there is no need to get the audio signal through the TV and then to the receiver. So, the STB goes straight in the receiver).
I hope this may be of use for others.

Cheers,
Andrew
 

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