Anyone shopping for a 4K monitor knows they're not cheap. With a packed pixel army, you can stretch your screen size well past 30 inches without having pixels so large that you can see them. And the best graphics cards, whether from Nvidia's RTX 40-series or AMD's Radeon RX 7000-series, make a move to 4K even more tempting.īut that image quality comes at a steep price. If you want that support, look for a long active HDMI cable, an HDMI-over-Ethernet extender, or another wired HDMI option.In addition to being the highest resolution you can find in a good gaming monitor these days, going 4K also offers the ability to expand to bigger displays while retaining a sharp image. As we said above, no wireless HDMI system supports high dynamic range video, so you cannot get the full Ultra HD experience, via streaming or Ultra HD Blu-ray disc, if you go the wireless route. In most cases, we don’t think the step up to 4K is necessary when you’re sending video to a secondary TV, but it may be helpful when you’re sending video to a projector, since projectors deliver a much larger image, where the improved resolution might be noticeable. Some newer wireless HDMI systems support a 4K resolution but only up to 30 frames per second (we talk about how this might affect performance with our budget pick). Resolution: Pretty much every wireless HDTV system available now can transmit up to 1080p/60 video (1080p resolution at 60 frames per second) from whatever HDMI source you send to it, including HD media streaming devices, Blu-ray players (2D and 3D), cable or satellite boxes, and gaming consoles. And you can power both the transmitter and receiver through USB, so you don’t need to position them near power outlets. But when it has a clear path, the Blackbird Pro system delivers a great-looking picture and supports 7.1-channel audio. (Monoprice hasn’t been clear about this update, so much of the online documentation still says the maximum resolution is 1080p/60, but our tests confirmed that it works with 4K.) The Blackbird Pro’s wireless technology differs from that of our other picks and requires line-of-sight between the transmitter and receiver, so this system works only as an in-room option, and you will experience stability issues if obstructions sit between the two boxes. This system has been our budget pick for years, and a recent upgrade has made it even better: It now supports video signals with a resolution up to 4K/30 Hz. If you’re looking for an easy, affordable way to wirelessly transmit an AV signal across a room-perhaps from a Blu-ray player to a front projector that’s mounted on the back wall or the ceiling-we recommend the Monoprice Blackbird Pro 16049. If you don’t need the HDMI output and the second HDMI input, you can save $50 and get the Nyrius Aries Home instead. Because the Aries Home+ is so full featured, it costs a bit more than most competitors. The transmitter has two HDMI inputs to connect multiple sources at once, as well as an HDMI output to pass those signals through to a nearby TV. The Aries Home+ also supports infrared pass-through, so you can control your source device when it’s located in another room. Plus, this system boasts the widest array of features, including support for 7.1-channel surround sound (most of these systems support only stereo audio) and the ability to power the receiver unit through your TV’s USB port so you don’t have to plug it into a power outlet. In our tests, the Nyrius Aries Home+ consistently delivered the most stable, reliable wireless signal and offered great picture quality overall. Unfortunately, that’s what you get from many wireless HDMI video transmitters, especially if you’re trying to send the AV signal wirelessly over a long distance, through multiple walls. There’s nothing worse than sitting down to watch TV and having the video signal freeze, flash on and off, or disappear entirely.
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