PROZOR DAC Converter 192Khz Digital to Analog Audio Decoder with Volume Control Support 5.1CH DTS Dolly-AC3 Coaxial SPDIF Toslink Optical to RCA Adapter for HDTV Blu-ray DVD PS3 Home Cinema System

I recently upgraded my main TV to a newer model that has digital audio output, but no analog output. I have an old Dolby ProLogic receiver that works well. I'd like to be able to connect my TV to the stereo for watching movies, but as I do this so rarely I really didn't want to shell out yet more money on a new receiver that won't get much use.This little converter solved my problems. It was able to connect to my TV using the included TOSLINK cable and connected to my receiver using a standard RCA audio patch cable. It's powered by an included USB cable. The manual said it requires a 1A USB port, although it did seem to work just as well in the 0.5A USB port on my TV, however I'll use the 1A so as not to damage it due to low current.Sound quality is good. I didn't notice any distortion and audio came through loud and clear. I don't have my rear speakers set up and I don't have a good test video, so I can't comment on if or how well it converts Dolby DTS to Dolby ProLogic. If I can find a good test video I'll have to try it out, but so far this has done everything I could ask for at an extremely reasonable price.-- UpdateI finally reconnected my rear speakers for my Dolby ProLogic system, and while I do hear sound from the rear speakers, it's nowhere close to what you get from a true Dolby Atmos or Dolby DTS system. However, for the cost of this little box I still feel this is an excellent value and a great device for connecting a digital system to an older analog receiver.

Works as advertised. Perfect with current audio optics. Highly Recommended. No issues at all!!!

I have a Tivo EDGE and it does optical audio output with Dolby or just PCM. But the output setting applies both to the optical output and to HDMI, so if turn off Dolby you are turning it off both for the optical and HDMI audio. I want to use an optical to Bluetooth adapter to work with headphones. I could not find one that accepts Dolby encoded optical input, so I tried this adapter. It works great, good quality components, converts the optical Dolby stream to analog stereo audio, but unfortunately, when I hooked the analog audio into the Bluetooth adapter's stereo input (using an RCA to mini plug cable) I wind up with a lot of power hum in the output to the headphones. Unclear what is causing it, but it's there and it's not there when I turn off the Dolby in the Tivo EDGE so it can drive the Bluetooth adapter.So, I'll keep looking for a Dolby optical input to stereo Bluetooth adapter, and maybe I'll find one, but I did not find the combination of discrete components a good solution.

I ordered one of these and the output was extremely small - barely audible with the output volume at maximum. So I returned it and bought another one. The second one works great with my same setup. The output volume can be controlled and works well at around 75% or maximum level. So, they can build a quality device, but their quality assurance testing before shipment is wholly inadequate, so you might receive one that simply does not work.

When we moved into our new apartment and I introduced the idea of "everything should work with everything" to my wife. She had one stipulation: get rid of the wires, even if that meant getting rid of my beautiful NAD 7225 stereo receiver from 1988. GASP! As it turns out, I had nothing to worry about.I discovered a tiny Bluetooth receiver to connect, using RCA cables, to my old amplifier. Now it was black in play. I found a tiny Bluetooth transmitter to connect to my Roku clicker via mini-plug to transmit to my stereo set. Computers and phones all have onboard Bluetooth capability, and therefore access to the amplifier. However, the challenge turned out to be the broadcasts I was receiving through my DTTV digital antenna connected to my plasma HDTV, which I also won't give up. The input into the TV is via a coaxial port. You see, back in 2005, congress allowed broadcast stations to drop the analog signals they had been sending for free through the airwaves since the 1940s. However, they would have to replace those with free digital versions, daily broadcasts of their one flagship channel, which they had to make available, for free, to anyone using a DTTV antenna. I use the "Antop Mini Big Boy" I got here. Using that rig, I saw every Olympic event I cared to on NBC, for free, in digital quality. The problem is that the only sound output from my old plasma HDTV is through an optical port. I needed to find a Bluetooth transmitter that has an optical input. Prozor seems to have cornered this market, on Amazon, anyway, and the PROZOR 192KHz DAC Digital to Analog Audio Converter with Bluetooth 5.0 Audio Transmitter seemed like just the right tool. I hooked its onboard optical input port to my plasma TV's optical output port and got...nothing. Turns out that when the input is from a "digital antenna," the sound output from the optical port is in "PCM" format (whatever that is). For whatever reason, the Prozor Bluetooth Transmitter can't handle PCM. To make the optical input to the transmitter work, you need to add this, the PROZOR 192Khz Digital to Analog Audio Converter. Now everything is working very well with a couple of drawbacks. Using this rig, I can only change the volume at the stereo amplifier and not any of the remotes. You'll have to get up off the couch now and then. A collateral benefit is that any sound coming through the TV will be sent to the stereo amplifier, whether from the digital antenna, the DVD or the Roku box. You can attach a Bluetooth transmitter to the Roku remote, directly, and in that configuration adjust the volume using the remote buttons and never have to get up, but we almost never use it. That's because the sound coming through the stereo is so much richer and truer than from the TV's on-board speakers, we don't have to make it loud to hear everything, perfectly, clearly, and at a reasonable volume. We use the closed captions much less frequently, too. The second draw back is that having to use this two device system, converting digital to analog, back to digital again and then transmitting it, I suspect there's an increase in lag time. This means that if I stare at the screen like a hawk, without blinking, I think the lip synch is not quite as good. My wife says she doesn't notice a thing, and, that's what really counts. What counts, for me, is that I get to see ballgames I can't get through Roku with HBO and Amazon, which is what we have. We get to see the old movies that are always on broadcast television, all kinds of playoff games, and every kind of award show. And all of this with beautiful sound and completely free.