4K60Hz HDMI Audio Extractor Splitter Converter to Optical and 3.5mm and AUX Adapter Supports 2.0 and 18Gpbs Bandwidth Digital DTS PCM HDR10

I wanted to be sure the box was passing the 5.1 signal correctly so ran test tones for each channel through my Bluray player's HDMI port. When the switch is set to 5.1CH the extractor's optical output appears to be discrete 5.1 channel Dolby Digital output just as you'd get directly out of of the player's optical out. When I switched it to 2CH, the output changed to stereo PCM with the 5.1 channels appearing to be encoded to Pro Logic but I can't be 100% sure if it was the extractor encoding them or the player without further testing. I will follow up with more later. My only complaint with this unit is you can feel the circuit board moving side to side when you unplug the HDMI cables. This was remedied by taking the cover off one side and putting a piece of double sided tape on the edge of the board to take up the slack. Overall nice quality unit and package, comes with almost everything you need to hook it up besides the 5V power supply. After using this over a year, I've found one possible issue. I have never seen it pass Pro Logic encoded stereo AC3. For example MAX seems to stream all audio AC3 out of the Roku but some of their content has only stereo L/R signal present in the 5.1. There should be a tag to tell my processor to Pro Logic decode the L/R channels but this never happens. It's possible that it could be an issue with the content's encoding, but since I've never seen this format come out of this box, I'd tend to think it's the box. I guess you could set the switch over to 2ch to resolve, so not a big deal. Another workaround would be to temporarily set the streaming device output to stereo only. UPDATE 5/31/25: I have used this little box for nearly 3 years but I am replacing it with a switcher that extracts audio. I could still recommend this unit, but at this point you probably want an extractor that is compatible with the ARC standard, as some current televisions don't provide an option to pass standard HDMI audio formats. Why this is?? idk, it's pretty stupid imo. But if you buy a TV that has ARC audio out only then this device won't work for you.

Using this device to drive an older Bose V30 audio system from a new Roku Ultra. The Bose can't pass 4K video, so I use this box to split out an optical audio stream the Bose can cope with. Works just fine; video passthrough of 4K UHD is perfect, audio is 5.1 as advertised and sounds great, and the audio sync is actually an improvement over the previous Roku (which had its own optical-out). I'm powering it with an old Samsung phone charger rather than plugging into another device for power, and that's sufficient. I do miss the days when standards didn't change every five minutes and you could count on a piece of equipment to work and play well with others indefinitely. But since I can't have that, at least there are devices like this one to get you around the compatibility issues.

Works great. Tried another one that didn't work at 60 Hz with 4K resolution, but this one definitely does. No complaints. Edit: the sound out of this isn't as good as it could be. It's a little tinny, compared to the USB sound card and the headphone jack in my HDMI monitor.

The setup was pretty easy, at first my Mac did not like the video output, it only showed HD. I was getting a bit upset. I went back and reconnected the box to my setup, I used a better HDMI cable and it seemed to have been the trick. Now the output video is 4K at 60hz and I was able to connect a soundbar w. subwoofer to my Mac.

Plugged it in and it worked just fine. Was able to access my 4k hdr on my Xbox and everything. After a week hdr quit working. I unplugged it and did everything I could think of and it still won't let me use 4k hdr. But the sound works. Disappointed

Why did you pick this product vs others?: Exactly what i needed and worked perfectly. The projector had only auxiliary output but Bose smart ultra needed optical input for Audio. Got this adapter and it works like a gem. Roku stick as HDMI input, Hdmi output goes to projector for video and Optical output goes to Bose. All works like a charm. Highly recommended, go for it if you have the same scenario as mine.

Extremely well assembled, if there are any cons I’ll add them but so far it’s great and pulling sound from an HDMI split source into optical signal - PS5 sounds like it needs to 👍

The product was good. I used it for my Xbox Series X to control the volume on an external device. The picture quality was as described with little-to-no lag. However a couple months later, it randomly broke. The screen flickers with 90% of the time being blacked out. The sound still works but no display. Now, I am left with a broken device and having to replace this product. Overall, the product worked well when it did but now it is another eco-waste.

Does exactly what it is supposed to do. Seems to retain sufficient audio quality

Great.

Easy to setup and functions as it should.

This device works great on my projector paired with a ps5, my biggest problem is that every once in a while the screen will suddenly cut out for a few minutes or freezes completely. I have paired the splitter to an optical out, new micro usb with power adapter, and an HDMI 2.1 input. Verry hard to find help for this issue. Update. Just messaged the seller about my issue and emedietly they sent out a new device! Works much better and no issues, the replacement came super fast and the seller was willing to replace withing the 12 month purchase date with no strings attached.

It does the job, splits the audio off from my blue ray player so I can play the sound on my surround speakers. However, it didn't come with a power cord. I don't have any Micro-B cables anymore which was quite an annoyance.