HDMI Splitter 1 In 8 Out 4K 60Hz Premium Quality 4K Ultra HD, HDMI Splitter for Multiple Monitors Duplicate/Mirror by J-Tech Digital [JTD4KSP0108]

I use this on a NVR to split the video to a 4k TV and a 1080p portable display. And it works flawless. No issue with audio or video quality.

Second edit: I contacted the company about the problem and they were going to immediately send me a new one and I was supposed to get it by a certain date. Days and it was never sent out. Then they were going to overnight it. I didn’t get it overnight. I got it, three days later than what they promised.. I installed the new one today. It worked on one TV with a picture, but I didn’t even bother with a second TV to see if I got a picture because the sound didn’t work, I called them again today.. The one that I received today wasn’t the same as the one that I was trying to replace it was from a sister company. They are going to try to replace it, but I’m not sure which one if I’m getting from Service or the sister company which had a plug that was too big for my power strip, and I really had to waste plug space because of it. They can’t overnight it The second replacement I’m not really very happy with his company. They’re going to send it by ground.Edit. I purchased this May 17, 2024 and today is August 4, 2024 and it died today. I’m very unhappy. I hope it has a warranty longer than 2 1/2 months, And I hope it can be replaced quickly.I purchased another highly rated unit. It didn’t work at all and their customer service was nonexistent. This unit worked perfectly. It was easy to set up. I have a TV and cable box in my living room, and my bedroom shares the same wall, it just seemed crazy to pay for another Cable box. I bought a long HDMI cable and put the splitter in.. I bought a splitter along time ago, that eventually died, so I could watch TV in my bedroom. I can change the channel with the remote app in my phone. If I want to watch TV in the bedroom while I’m working around the house as well as in the living room, I can do that. I also can watch TV in bed and have the TV in the living room turned off. It’s great and works perfectly!

The visual signals are fine, but sometimes (about 20% of the time) the audio cuts out and requires a replugging in of the main source device that is being split, in order to restore it. Sometimes, you have to cycle the power of this device entirely.

Finally, a device that actually passes through the signals the way they’re meant to be. I’ve bought other devices on Amazon that claimed to be 4K Dolby Vision but then they mess up the audio. This device not only passes Dolby Vision HDR 10 but passes all of the digital audio as it receives it. Specifically I was looking for LPCM pass-through to my amplifier. The other ones would butcher up the signal of this one passes it all the way through. Haven’t tried the other supported audio for him as but claims to do a lot of high and audio formats.

Wanted to stream my Roku to two different TVs in my basement. This worked perfectly. The only hiccup was that the splitter needs its own power supply and I was out of spots on my power strip. Once I sorted that, I plugged the splitter into the power supply, then plugged the Roku stick into the input side of the splitter, then lastly plugged two HDMI cables I had into the splitter outputs and plugged the other end of the cables into my TVs. Viola - both now show what’s on the Roku simultaneously.

It works for me. I have two external monitors with different resolutions but most of the splitters sold here have to have the two external monitors the same resolutions. So read descriptions carefully. Also I plugged my earlier splitter into a modified sine wave power source on my directors cart and it fried the unit. It needs a pure sine wave.

HDMI splitters are critical, esp. if you're hosting a Super Bowl party and need your HD 720 p projector AND LCD TV working in parallel off of one input device. So I went with the J-Tech, based on reviews. I'm fully aware of the "hand-shaking" approach, where powering the splitter, plugging input and output devices, and powering the input and output devices should be done in a specific sequence in order to assure a) great splitting of the video and b) splitting of the audio. Well, going by this sequence (1. Power up splitter, 2. Plug in input device, 3. Plug in one of the output devices, 4. Plug in the other output device, 5. Power on input device, 6. Power on output devices), it worked like a charm. I've also done the following sequence and everything worked fine: 1. Plug in input device, 2. Plug in one of the output devices, 3. Plug in the other output device, 4. Power on the splitter, 5. Power on input device, 6. Power on output devices. BEAR IN MIND that the instructions oversimplify, so mind the "hand-shaking" for the order of inputting devices and powering stuff on.But here's the kicker... day of the Super Bowl THE SOUND WENT KAPUT. The video split, but no audio coming out of the TV OR from the projector. NO AUDIO FROM THE OUTPUT DEVICES.Luckily, that week as a backup, I bought the Sewell Direct splitter (http://www.amazon.com/gp/product/B007WR0CHU/ref=oh_details_o03_s00_i00?ie=UTF8&psc=1). It works with one hiccup: No matter HOW you do the handshake (and I've heard that it could be because of splitting between a Sony LCD TV and HD projector), audio will ONLY come out of the TV and not out of the projector. Whatever, I could live with that. I used this same Sewell splitter last year for the Super Bowl and had the same result (split the video, but not the audio). But after hooking the TV to a sound system, it made no difference.So...1) Why the J-Tech just stopped working by not providing ANY audio from any output device on the 4th day, I have no idea.2) The lesser of the two evils would be the Sewell, because at least I'm still getting audio out of the TV, while getting great picture quality on the TV AND HD projector3) In case you're wondering, my input device was my FiOS box. Just FYI, the Sewell works great with a Roku as the input device too.4) A few weeks in, Sewell is still working as mentioned before. Agreed, it stinks that the audio doesn't split. But best to have audio from the TV and no audio from the projector as opposed to NO AUDIO AT ALL.