SPDIF to RCA Analog
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Joined: May 2008
Posts: 37
enthusiast
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OP
enthusiast
Joined: May 2008
Posts: 37 |
Hiya,
I'm trying to send audio from my 2 Denon receivers and my Shaw cable box to my Whole House Audio system.
I have a bunch of ethernet in the walls, but going analog to analog gives me a bit of hum, so I would like to go Digital thru the length.
That is, Output from my sources via the SPDIF connector, then convert the SPDIF to RCA Stereo right next to the whole home theater amp.
Anyone have an idea where I could pick up such a converter?
Thanks for any help or better ideas....
Peter
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Re: SPDIF to RCA Analog
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Joined: May 2002
Posts: 10,654
shareholder in the making
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shareholder in the making
Joined: May 2002
Posts: 10,654 |
Peter, your description of the proposed connections isn't entirely clear. What is the SPDIF connector? The pre-outs from your Denons are analog outputs and hum isn't a problem unless the connecting cables aren't adequately shielded.
-----------------------------------
Enjoy the music, not the equipment.
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Re: SPDIF to RCA Analog
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Joined: May 2003
Posts: 18,044
shareholder in the making
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shareholder in the making
Joined: May 2003
Posts: 18,044 |
Also confused; doesn't your HT receiver have digital inputs?
I am the Doctor, and THIS... is my SPOON!
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Re: SPDIF to RCA Analog
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Joined: May 2008
Posts: 37
enthusiast
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OP
enthusiast
Joined: May 2008
Posts: 37 |
Sorry, should have been clearer....
My Whole Home Audio Amp only has Analog RCA Stereo inputs, so eventually I need to get the audio to that amp in analog form.
I have Ethernet in the walls, so Analog audio over 60 feet gives some noise, and I have a weird grounding loop between the two amps. So, I'd like to go digital.
I have an Optical Digital Out on my Denon, and I also have an Optical to SPDIF converter to get the optical out to SPDIF (Coaxial Digital Out... I think it stands for Sony Philips Digital Interface Format)
So, the connection would go:
Denon Optical > Optical>Coaxial > 60 foot run in walls > ?????? > Analog Input to Whole Home Audio System.
It's the ????? that I need to find, or come up with a better solution.
Thanks!
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Re: SPDIF to RCA Analog
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Joined: May 2003
Posts: 18,044
shareholder in the making
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shareholder in the making
Joined: May 2003
Posts: 18,044 |
Ah, so you need an outboard DAC. Pretty available, although usually at absurd prices because they're targeted at audiophiles.
I am the Doctor, and THIS... is my SPOON!
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Re: SPDIF to RCA Analog
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Joined: May 2003
Posts: 2,185
connoisseur
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connoisseur
Joined: May 2003
Posts: 2,185 |
You can look at muxlab.com for baluns.
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Re: SPDIF to RCA Analog
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Joined: May 2002
Posts: 10,654
shareholder in the making
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shareholder in the making
Joined: May 2002
Posts: 10,654 |
That's clearer, Peter. Yes, that's what SPDIF stands for, but the reason that I questioned it was because I thought that you were thinking of using the Denon pre-outs, which are analog.
The basic premise here appears to be flawed: a digital connection doesn't necessarily help a hum problem. The digital 1s and 0s aren't themselves corrupted by the voltage at the hum frequency, but unless the entire connection is adequately shielded, the hum voltage will ride in and be amplified along with the real signals. If you use the same in-wall wiring which you believe is picking up hum, it'll continue to do so.
-----------------------------------
Enjoy the music, not the equipment.
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Re: SPDIF to RCA Analog
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Joined: May 2008
Posts: 37
enthusiast
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OP
enthusiast
Joined: May 2008
Posts: 37 |
Okay - thanks for both of those posts. I'll see what I can find.
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Re: SPDIF to RCA Analog
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Joined: May 2003
Posts: 18,044
shareholder in the making
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shareholder in the making
Joined: May 2003
Posts: 18,044 |
Not if he's running optical cable.
I am the Doctor, and THIS... is my SPOON!
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Re: SPDIF to RCA Analog
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Joined: Nov 2005
Posts: 1,236
connoisseur
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connoisseur
Joined: Nov 2005
Posts: 1,236 |
Check out Blue Circle Audio. They have a product line called "Thingee" which might do what you want.
M3 and M80
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Re: SPDIF to RCA Analog
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Joined: May 2002
Posts: 10,654
shareholder in the making
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shareholder in the making
Joined: May 2002
Posts: 10,654 |
-----------------------------------
Enjoy the music, not the equipment.
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Re: SPDIF to RCA Analog
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Joined: May 2003
Posts: 18,044
shareholder in the making
|
shareholder in the making
Joined: May 2003
Posts: 18,044 |
I am the Doctor, and THIS... is my SPOON!
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Re: SPDIF to RCA Analog
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Joined: Feb 2009
Posts: 3,466
connoisseur
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connoisseur
Joined: Feb 2009
Posts: 3,466 |
The hum could easily be a ground loop, between the two analog devices at the ends of the cat 5 run. He did mention having an optical out for the S/PDIF. If that was used in anyway, it would break the ground loop.
Though the amount of money to be invested to try sending the digital signal over the same wire, could end up being a real waste, if the hum was something induced by having the cat 5 run in parallel to power lines, and not a group loop.
Pioneer PDP-5020FD, Marantz SR6011 Axiom M5HP, VP160HP, QS8 Sony PS4, surround backs -Chris
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