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Gear / Technical Help => Cables => Topic started by: danlynch on December 29, 2010, 08:33:59 PM

Title: Digital Coaxial to Digital Mini-Plug Cable?
Post by: danlynch on December 29, 2010, 08:33:59 PM
I need this combination to connect my R-44 digitally to my new Cakewalk USB Laptop Audio interface.
I see a ton of digital mini to optical cables available, but don't see anywhere this combination that I need.
Is this cable possible, and does anyone have a lead?
Title: Re: Digital Coaxial to Digital Mini-Plug Cable?
Post by: twatts (pants are so over-rated...) on December 29, 2010, 08:43:40 PM
http://www.ramelectronics.net/audio-video/custom-audio-and-video-cables/rca-to-3-5mm-s-pdif-cables/custom-spdif-cable-digital-audio-3-5mm-to-rca/prodSPDIF.html
Title: Re: Digital Coaxial to Digital Mini-Plug Cable?
Post by: danlynch on December 30, 2010, 01:14:15 AM
Thanks.  I guess my searching skills are bad.  I've been looking for days for that cable.
Title: Re: Digital Coaxial to Digital Mini-Plug Cable?
Post by: jbell on December 30, 2010, 07:10:04 AM
Is this an RCA > optical cable?
Title: Re: Digital Coaxial to Digital Mini-Plug Cable?
Post by: twatts (pants are so over-rated...) on December 30, 2010, 09:55:45 AM
Is this an RCA > optical cable?

No, its an RCA > 1/8 TRS.  Some stuff uses TRS SPDIF connections, the Denecke AD-20 is one methinks...

To go RCA > Optical, you'll need to Digital Format Converter, like the Hosa ODL-276a...

Terry
Title: Re: Digital Coaxial to Digital Mini-Plug Cable?
Post by: OOK on December 30, 2010, 01:47:50 PM
I am absolutely positive you can buy a RCA female to male mini TRS adapter at Rat Shack.....probably like 3$....you just need to supply you own quality RCA cable which most of us all already have...Yep you can see link..

http://www.radioshack.com/product/index.jsp?productId=2062459&numProdsPerPage=60

And here it is in gold....

http://www.radioshack.com/product/index.jsp?productId=2102693

OOK
Title: Re: Digital Coaxial to Digital Mini-Plug Cable?
Post by: goodcooker on January 02, 2011, 02:42:26 PM
I have one of these that I bough with my AD20 many years ago. It was made by ToddR and is a nice piece of work. I haven't used it in years. If you're interested send me a PM.

Caveat - I'm on an extended business trip for a few more weeks and couldn't send it till after the 14th of Jan so if you're in a hurry...
Title: Re: Digital Coaxial to Digital Mini-Plug Cable?
Post by: ArchivalAudio on January 21, 2011, 02:05:00 AM

And here it is in gold....

http://www.radioshack.com/product/index.jsp?productId=2102693

OOK
I got one of those  which is RCA- > (to) 1/8" TS Gold model # 274-897
for my Denecke AD-20 for SPDIF (Coax) out.
works great!
anyone wanna buy my AD-20 ?  ;D
Title: Re: Digital Coaxial to Digital Mini-Plug Cable?
Post by: willndmb on January 21, 2011, 03:03:32 PM
never realized you could pass the dig signal thru the adapter like that
Title: Re: Digital Coaxial to Digital Mini-Plug Cable?
Post by: F.O.Bean on January 22, 2011, 05:51:30 PM
never realized you could pass the dig signal thru the adapter like that

Me neither, I always used those Hosa digital adapter boxes to convert coax[digital]>mini-plug[digital]
Title: Re: Digital Coaxial to Digital Mini-Plug Cable?
Post by: danlynch on January 30, 2011, 02:02:12 AM
http://www.ramelectronics.net/audio-video/custom-audio-and-video-cables/rca-to-3-5mm-s-pdif-cables/custom-spdif-cable-digital-audio-3-5mm-to-rca/prodSPDIF.html

Got this a few weeks ago.  Finally tried it out going from the R-44 coaxial out into the Roland Cakewalk UA-1G mini-plug digital in, and all I got was white noise.
RCA analog jacks work fine with the interface, so its not an equipment problem. 
Not sure what is causing this problem, other than the possible need for an adapter.
Title: Re: Digital Coaxial to Digital Mini-Plug Cable?
Post by: Fried Chicken Boy on February 01, 2011, 02:56:59 AM
From what I understand, the coaxial (RCA) and fiber-optic (TOSLINK, mini-plug) S/PDIF are not compatible via just a cable.  The coax passes an electrical signal and the optical passes the signal with, well, light waves hence why the original ADAT format was called "lightpipe"; as a side note, ADAT uses the same TOSLINK cable but the protocol is not compatible with S/PDIF (8-channel vs. 2-channel).  Unfortunately, unless someone else knows better and has made it work successfully, you'll need a converter to get the coaxial to play nice with the optical.  There's a thread here > http://taperssection.com/index.php?topic=134329.0 (http://taperssection.com/index.php?topic=134329.0) about converters (the HOSA gets high marks) and I believe you will also need a TOSLINK to optical mini-plug cable.  You should be able to find a cheap cable with a Google search.  Let us know how it works out.

Edit: another more recent thread here about converters > http://taperssection.com/index.php?topic=140240.0 (http://taperssection.com/index.php?topic=140240.0)