Monoprice S/PDIF (Toslink) Digital Optical to Digital Coaxial (RCA) Audio Converter
Product # 2948
UPC # 844660029489
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My Toshiba tv has a coaxial output and my surround sound has a digital toshlink input. will this device solve my problem?
Karim B
on Aug 4, 2019
BEST ANSWER: I used this adapter to connect a digital DVD player to an analog sound board at our church, and it worked perfectly. I'm not really sure what you're trying to do. Are you trying to hook the TV to the receiver? If so, then you shouldn't have a problem since most receivers are equipped with both a coaxial and a toshlink connection , and they are both digital. Obviously you do have a problem however, or you wouldn't be trying to fix it. Maybe someone else can provide the info you need. Good luck! PS Have you tried using a regular yellow video cable (not a TV coaxial) to connect the TV to the receiver?
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- JUDITH V on Aug 4, 2019
- Purchased on Dec 1, 2018
BEST ANSWER: I used this adapter to connect a digital DVD player to an analog sound board at our church, and it worked perfectly. I'm not really sure what you're trying to do. Are you trying to hook the TV to the receiver? If so, then you shouldn't have a problem since most receivers are equipped with both a coaxial and a toshlink connection , and they are both digital. Obviously you do have a problem however, or you wouldn't be trying to fix it. Maybe someone else can provide the info you need. Good luck! PS Have you tried using a regular yellow video cable (not a TV coaxial) to connect the TV to the receiver?
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- JUDITH V on Aug 4, 2019
- Purchased on Dec 1, 2018
You’re incorrect. The coax on your tv is most likely an input, not an output. It’s rare for the digital output on a tv to be coax (which looks like RCA) rather than optical (toslink). Verify the labels of the ins and outs before purchasing a cable or adapter.
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- Aaron R on Aug 4, 2019
- Purchased on Aug 28, 2018
This unit has optical in and coax out. It works for an Xbox I have connected from optical to a coax into a soundbar. It works perfectly. I think they sell a unit with coax in optical out which I think is what you're saying you need.
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- David J on Aug 4, 2019
- Purchased on Mar 7, 2019
Yes, it should work just fine for both S/PDIF and AC3 (Dolby Digital 5.1) -- that's how I use it from my Set Top Box to my pre-pro.
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- Tip J on Aug 4, 2019
- Purchased on Jan 17, 2019
No, you need https://www.monoprice.com/product?p_id=2947
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- Robert B on Aug 4, 2019
- Purchased on Nov 7, 2018
No, it will not. You will need to buy the reverse...which is Monoprice Product # 2947.
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- Ray on Aug 7, 2019
- Purchased on Sep 14, 2018
This transforms optical into coax. You want the opposite. So I'd say, no.
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- Richard M on Aug 4, 2019
- Purchased on Jan 18, 2019
No.. you need the coaxial in to optical out
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- Joyce B on Aug 4, 2019
- Purchased on Oct 9, 2018
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Will the coaxial out be in stereo or mono?
Corey B
on Apr 13, 2018
BEST ANSWER: Both the input and output are S/PDIF digital signals. The input is S/PDIF Digital Optical and the output is S/PDIF Digital over Copper (Coax cable with RCA/Phono connectors). S/PDIF carries a stereo digital signal. You can use only one of the two channels, of course, for mono. BUT the RCA output is not an analog signal, it will have to be attached to a S/PDIF digital input on another device!
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- Kevin P on Apr 13, 2018
- Purchased on Aug 22, 2017
BEST ANSWER: Both the input and output are S/PDIF digital signals. The input is S/PDIF Digital Optical and the output is S/PDIF Digital over Copper (Coax cable with RCA/Phono connectors). S/PDIF carries a stereo digital signal. You can use only one of the two channels, of course, for mono. BUT the RCA output is not an analog signal, it will have to be attached to a S/PDIF digital input on another device!
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- Kevin P on Apr 13, 2018
- Purchased on Aug 22, 2017
If you are trying to convert S/PDIF digital audio signals into ANALOG mono, you may want to see this product, Monoprice #6884 https://www.monoprice.com/product?c_id=104&cp_id=10423&cs_id=1042302&p_id=6884&seq=1&format=2
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- Kevin P on Apr 13, 2018
- Purchased on Aug 22, 2017
My TV's S/PDIF coax connection is screw type, but your digital optical audio converter end requires different type of coax connector, is there a mixed end coax cable? Otherwise I'm out of luck purchased this converter or buy a new TV.
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- David N on Jan 7, 2019
Both Signals are Digital. So yes, stereo. But if you connect the RCA to an analog input, it will not work. Just one uses light (Toslink) and the other electrical signals (Digital Coaxial (RCA))..
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- Rickster on Apr 13, 2018
- Purchased on May 26, 2017
Neither, it's still in digital form. You need to convert it to an Analog signal. You will need to use the #6884, as long as the signal isn't encoded in 5.1
Monoprice Digital to Analog Audio Converter
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- Lyle F on Apr 13, 2018
- Purchased on Oct 31, 2017
It will be stereo. Actually it will send all surround channels if thats what you have coming out the optical digital out.
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- James F F on Apr 13, 2018
- Purchased on Apr 19, 2017
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What size and type is the power plug that plugs into the device? Due to my TV setup, I want to use a USB to power adapter to power this device, rather than plugging the included power plug into the wall. I will plug the USB to power adapter into the TV's USB and then directly into this device.
New User U
on Jan 7, 2018
BEST ANSWER: The power is supplied by a 110v-6v AC/DC adapter with a center hole pin output. It is doubtful that you could use USB 5v power source. There is no USB cord supplied. Robert
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- Robert W on Apr 18, 2019
- Purchased on Jun 6, 2018
BEST ANSWER: The power is supplied by a 110v-6v AC/DC adapter with a center hole pin output. It is doubtful that you could use USB 5v power source. There is no USB cord supplied. Robert
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- Robert W on Apr 18, 2019
- Purchased on Jun 6, 2018
It is a power adapter with 110-120v plug receptacle on one end and a small round female terminal on the other
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- Carmine M on Apr 17, 2019
- Purchased on Jul 8, 2018
That would work. Unplugged the USB power source into my cable box just because of the location.
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- jason l on Apr 17, 2019
- Purchased on Nov 27, 2018
6V. Not sure of plug size. Maybe 2.3mm. Might work but USB is only 5v.
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- Corey B B on Apr 16, 2019
- Purchased on Nov 24, 2018
Adapter output is 6volt 300mAmp
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- Shaddrick S on Apr 17, 2019
- Purchased on Apr 26, 2018
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Is there a light indicator?
A shopper
on Jan 23, 2017
BEST ANSWER: No there isn't a light indicator. This product has worked perfectly for me. I ran a a toslink cable from an Apple TV to the convertor, then a digital coaxial cable on to my DAC. The DAC's toslink connection was being used by my Macbook, thus the need for the convertor. This device did exactly what it's supposed to do and performed flawlessly.
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- Eric R on Jan 24, 2017
- Purchased on Jul 5, 2016
BEST ANSWER: No there isn't a light indicator. This product has worked perfectly for me. I ran a a toslink cable from an Apple TV to the convertor, then a digital coaxial cable on to my DAC. The DAC's toslink connection was being used by my Macbook, thus the need for the convertor. This device did exactly what it's supposed to do and performed flawlessly.
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- Eric R on Jan 24, 2017
- Purchased on Jul 5, 2016
No. The only way to know it is working is to look at the optical output.
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- Kit L on Jan 27, 2017
- Purchased on Jun 29, 2016
There are no indicator lights on this product.
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- Mr. A on Jan 24, 2017
- Purchased on May 6, 2016
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How do I hook it to my cable box , tv, DVD and sound bar? I know I run the optical cable to the plug on one end, but what do I plug in the other end?
A shopper
on Sep 5, 2018
BEST ANSWER: This is if you have a toslink optical output from your dvd, cable box, game console etc( square-ish looking plug) and you have run out of toslink sockets on your reciever, and all you have are coax optical inputs( round rca plug - dunno if you need a special cable or not, used monoprice for both. I’m assuming your tv/sound bar is the final output, and there is no reciever in between. So- look at the back of your dvd player/ cable box. There should be a digital audio out, if you’re not using HDMI for connecting, your sound bar/tv may have a digital audio IN, either toslink or coaxial. If you wanted dolby digital/dts and you couldn’t use Hdmi to whatever, you could use this. Hope that helps..jb
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- John B on Sep 5, 2018
- Purchased on Apr 7, 2018
BEST ANSWER: This is if you have a toslink optical output from your dvd, cable box, game console etc( square-ish looking plug) and you have run out of toslink sockets on your reciever, and all you have are coax optical inputs( round rca plug - dunno if you need a special cable or not, used monoprice for both. I’m assuming your tv/sound bar is the final output, and there is no reciever in between. So- look at the back of your dvd player/ cable box. There should be a digital audio out, if you’re not using HDMI for connecting, your sound bar/tv may have a digital audio IN, either toslink or coaxial. If you wanted dolby digital/dts and you couldn’t use Hdmi to whatever, you could use this. Hope that helps..jb
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- John B on Sep 5, 2018
- Purchased on Apr 7, 2018
I used this converter to take an older sound system which required a coaxial input connection (RCA) to connect to a newer device which uses a toslink output. You can use this converter on any device which OUTPUTS audio through a Toslink connection but your INPUT device (sound system) has no Toslink but uses RCA/coaxial. Note: this is a one-way connecter, you can't reverse the connection.
Good luck
Good luck
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- Richard P on Sep 6, 2018
- Purchased on Dec 6, 2017
Hello, The output from your cable box or DVD player for sound will be carried by the optical cable to this device and this device will convert optical audio to coaxial. The only reason you need this device is if you have an older digital to audio converter that accepts only coaxial input.
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- Burbank Glendale Dental G on Sep 5, 2018
- Purchased on Sep 12, 2017
A digital coaxial cable or an RCA cable.
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- Frank S on Sep 7, 2018
- Purchased on Dec 11, 2017
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How long is the Power Adapter Cord? Thanks.
Lex G
on Apr 18, 2017
BEST ANSWER: The power adapter cord is 6 feet in length.
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- Shannon R on Apr 18, 2017
- Purchased on Jun 12, 2016
BEST ANSWER: The power adapter cord is 6 feet in length.
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- Shannon R on Apr 18, 2017
- Purchased on Jun 12, 2016
The power adapter cable is 6 feet long.
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- Shannon R on Apr 18, 2017
- Purchased on Jun 12, 2016
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What voltage does the adaptor run on?
A shopper
on Sep 27, 2017
BEST ANSWER: It comes with a 12 VDC output switch mode voltage regulated power supply with 120 VAC North American power cord.
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- Ira W on Aug 3, 2018
BEST ANSWER: It comes with a 12 VDC output switch mode voltage regulated power supply with 120 VAC North American power cord.
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- Ira W on Aug 3, 2018
12 VDC as others have said with an output of 6V at 300mA. (Yet, device says input of 6V at 250 mA)
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- Ray on Oct 20, 2018
- Purchased on Sep 14, 2018
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Is anyone getting "discrete" Dolby Digital 5.1 passed through this? I believe I'm only getting 2-channel PCM and thus my AVR is outputting it as Dolby Pro Logic IIx. My AVR indicator light is showing PCM. (I'm running a Roku 4400R through this device and I do have the Roku set to output Dolby Digital and not Dolby Digital(+)Plus or plain stereo.)
Ray
on Nov 1, 2018
BEST ANSWER: Yes, I am getting Dolby Digital 5.1 through my cable STB's optical output to my pre-pro's coaxial input. Depending on how you have your system configured, the problem may be that your TV is indicating to the Roku via EDID information over HDMI that it only has two audio channels and thus the audio format out of the Roku is being output as stereo PCM. If I switch my pre-pro's input to the output of my smart TV when watching through the STB's HDMI, the audio format out of my smart TV is stereo PCM. But if I am watching an Amazon Prime show or an OTA channel that is in 5.1, the audio format out of my smart TV is Dolby Digital 5.1.
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- Tip J on Apr 29, 2019
- Purchased on Jan 17, 2019
Thanks. I think Roku senses that I am using both the HDMI out and the S/PDIF out at the same time (one to send video to my projector and the other to send audio to my AVR) and Roku modified firmware to limit the 'channels' out the S/PDIF for some reason....which really bums me out.
BEST ANSWER: Yes, I am getting Dolby Digital 5.1 through my cable STB's optical output to my pre-pro's coaxial input. Depending on how you have your system configured, the problem may be that your TV is indicating to the Roku via EDID information over HDMI that it only has two audio channels and thus the audio format out of the Roku is being output as stereo PCM. If I switch my pre-pro's input to the output of my smart TV when watching through the STB's HDMI, the audio format out of my smart TV is stereo PCM. But if I am watching an Amazon Prime show or an OTA channel that is in 5.1, the audio format out of my smart TV is Dolby Digital 5.1.
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- Tip J on Apr 29, 2019
- Purchased on Jan 17, 2019
Thanks. I think Roku senses that I am using both the HDMI out and the S/PDIF out at the same time (one to send video to my projector and the other to send audio to my AVR) and Roku modified firmware to limit the 'channels' out the S/PDIF for some reason....which really bums me out.
Yes, you should be getting true Dolby Digital and not PCM. I would look at the source to be pass through and not PCM
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- Laurentiu N on Nov 5, 2018
- Purchased on Aug 27, 2018
I bought mine for audio, did not work so I threw it away
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- Erich K on Nov 6, 2018
- Purchased on Aug 21, 2018
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Are rca and digital coaxial the same jack?
A shopper
on Apr 29, 2019
BEST ANSWER: Yes, digital coax uses the "RCA phono" jack. It's often colored orange to differentiate it from an analog audio port (though not on this device). I've never had a problem using an RCA audio cable to connect digital coax ports.
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- Clifton K on Apr 30, 2019
- Purchased on Dec 13, 2018
BEST ANSWER: Yes, digital coax uses the "RCA phono" jack. It's often colored orange to differentiate it from an analog audio port (though not on this device). I've never had a problem using an RCA audio cable to connect digital coax ports.
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- Clifton K on Apr 30, 2019
- Purchased on Dec 13, 2018
Yes. The digital coax cable is usually thicker wire to handle more data, like for 6.1 7.1 audio tracks.
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- Art S on Apr 29, 2019
- Purchased on Aug 25, 2018
Yes, the vast majority of audio components use an "RCA" jack for a digital coaxial input.
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- Tip J on Apr 29, 2019
- Purchased on Jan 17, 2019
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Will it decode DTS signal from my Samsung Bluray?
A shopper
on Dec 20, 2016
BEST ANSWER: Hello, thank you for your question. Yes this will be able to work with a DTS signal from a Blue-ray player. I hope this helps, and of course if you have any more questions feel free to contact us!
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- Jeff M Staff on Jan 17, 2017
BEST ANSWER: Hello, thank you for your question. Yes this will be able to work with a DTS signal from a Blue-ray player. I hope this helps, and of course if you have any more questions feel free to contact us!
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- Jeff M Staff on Jan 17, 2017
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I ordered this, but actually need the optical in to coax out converter. I'm wondering if they are the same product, meaning will the sound travel either way?
A shopper
on Mar 1, 2017
Monoprice S/PDIF (Toslink) Digital Optical to Digital Coaxial (RCA) Audio Converter
Monoprice Digital Coaxial (RCA) to S/PDIF (Toslink) Digital Optical Audio Converter
BEST ANSWER: Thank you for your question. The signal will only transmit in one direction. The converters will indicate which port is for input and which port is for output.
The Digital Coaxial (RCA) will be the input and the S/PDIF (Toslink) will be the output on PID 2947.
The S/PDIF (Toslink) will be the input and the Digital Coaxial (RCA) will be the output on PID 2948.
The Digital Coaxial (RCA) will be the input and the S/PDIF (Toslink) will be the output on PID 2947.
The S/PDIF (Toslink) will be the input and the Digital Coaxial (RCA) will be the output on PID 2948.
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- Mark P Staff on Apr 9, 2017
BEST ANSWER: Thank you for your question. The signal will only transmit in one direction. The converters will indicate which port is for input and which port is for output.
The Digital Coaxial (RCA) will be the input and the S/PDIF (Toslink) will be the output on PID 2947.
The S/PDIF (Toslink) will be the input and the Digital Coaxial (RCA) will be the output on PID 2948.
The Digital Coaxial (RCA) will be the input and the S/PDIF (Toslink) will be the output on PID 2947.
The S/PDIF (Toslink) will be the input and the Digital Coaxial (RCA) will be the output on PID 2948.
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- Mark P Staff on Apr 9, 2017
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Is there a limitation on how far you can run the digital coax output after the conversion? I would like to run it to another room about 75 feet away....
A shopper
on Aug 17, 2019
BEST ANSWER: Thank you for your question.
50' is the usual distance you can get from this converter.
50' is the usual distance you can get from this converter.
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- Tyler C Staff on Sep 20, 2019
BEST ANSWER: Thank you for your question.
50' is the usual distance you can get from this converter.
50' is the usual distance you can get from this converter.
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- Tyler C Staff on Sep 20, 2019
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I need to go from a new tv optical out to in ceiling speakers that connect through rca left/right inputs, will this work?
A shopper
on Aug 11, 2022
BEST ANSWER: There is only one RCA output and the RCA output is sending a digital signal. So if your system decodes RCA digital signals, then it will work.
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- Lawrence L on Aug 11, 2022
- Purchased on Nov 13, 2021
BEST ANSWER: There is only one RCA output and the RCA output is sending a digital signal. So if your system decodes RCA digital signals, then it will work.
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- Lawrence L on Aug 11, 2022
- Purchased on Nov 13, 2021
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Needs Female rca/male rca coax cable? Where is it available?
A shopper
on Aug 15, 2018
I have a pair of Active (powered) speakers with RCA in and DAC built in. Would like to connect a television to it with better quality sound than the RCA out on the TV. Will this help?
David B
on May 17, 2021
So, this has a DC power supply. I would IMAGINE that the wall power plug would be able to handle EITHER the US power system OR the European one (clearly in the latter case a converter plug would be required) and NOT a voltage transformer. Can someone please confirm that the voltage rating on the plug itself says something like: 110 - 230 volts?
WILLIAM K
on Nov 13, 2021
Is this a passive adapter? i.e. does any logic happen on the S/PDIF signal or is it straight through? If it is being converted somehow, what bitstream/pcm formats are supported?
A shopper
on Mar 6, 2024
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Rated 3 out of 5
It works but isn't well made
I bought one of these years ago and it failed so I tossed it in my parts bucket.
I recently opened it to see what went wrong and it is one of the lowest quality electronic boards I have seen in years. It looks like something from the 1970s.
Hopefully the board quality has improved from when this was originally introduced.
I recently opened it to see what went wrong and it is one of the lowest quality electronic boards I have seen in years. It looks like something from the 1970s.
Hopefully the board quality has improved from when this was originally introduced.
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June 7, 2022
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Rated 5 out of 5
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Rated 5 out of 5
Quick, easy interface
This unit was easy to install and does exactly what is advertised to do.
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September 20, 2021
New User U
Rated 5 out of 5
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Rated 5 out of 5
works as expected
Tv has audio optical output but audio system had only audio coax input. This did the conversion as desired.
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Rated 3 out of 5
Worth the price
The connectors are very particular with which kind of cables used. Your customer service person was excellent.
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Rated 5 out of 5
works as expected; enabled capturing VOX ToneLab LE optical output via coax SPDIF
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Rated 5 out of 5
Toslink Optical to Coax converter
This unit works very well. I had a situation where Toslink was going through too many feed-throughs. The optical reflection back and forth at each interface caused the signal to be corrupted, and lost. Going coax through the feed-throughs solved the problem.
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Rated 2 out of 5
Ok for the $$$
This converter is cheap, it works ok, it is not good enough to use in a high quality hifi, but it is ok for some uses.
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Rated 5 out of 5
Fantastic
Great price, works for converting audio for older AV receiver (make sure you get both pieces for conversion). I didn't want to shell out $400-800 for a new AV receiver, this will give you the audio out from your TV to the receiver.
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