The short answer
If you only need more ports and the TV handles the audio, a powered HDMI switch is the cheapest answer. If you want better sound too, route sources through a soundbar or receiver with HDMI inputs, which also removes any dependence on ARC. Avoid unpowered switches for 4K HDR, which is where most complaints come from.
Modern TVs often have three or four HDMI ports, and only one or two of them support the full bandwidth needed for 4K at high frame rates. Add a console, a streaming stick, a Blu-ray player and a computer, and you run out quickly. There are three ways out, and they suit different situations.
Option 1: an HDMI switch
A small box with several inputs and one output. Cheap, simple, and the right answer when the only problem is port count.
What to check:
- It must be powered. Unpowered switches that draw from the HDMI signal struggle at 4K HDR and produce intermittent blackouts and sparkles. The power supply is the single biggest quality difference.
- Bandwidth rating. For 4K at 60Hz you need 18Gbps. For 4K at 120Hz, which matters for current consoles, you need 48Gbps and an HDMI 2.1 switch.
- Automatic switching behaviour. Useful when it works and irritating when it switches away from what you are watching because another device woke up. A manual button and a remote are worth having.
- HDR and Dolby Vision pass-through, which cheaper switches sometimes drop silently.
The limitation of a switch is that all audio still goes to the TV, and the TV then has to send it onward to a soundbar over ARC. If ARC is where your problems are, a switch does not help.
Option 2: a soundbar with HDMI inputs
Many soundbars have one or two HDMI inputs plus an output to the TV. Sources plug into the soundbar, video passes through to the TV, and audio is taken directly at the soundbar.
This is a better arrangement than ARC for those sources, because audio never depends on the TV negotiating correctly. It also means the soundbar receives the original audio format rather than whatever the TV chooses to pass along, which can matter for surround formats.
The limitation is input count. Two inputs is common, which may not be enough, in which case a switch in front of the soundbar is a reasonable combination.
Check whether the soundbar’s HDMI input supports the video you need before routing a console through it. A soundbar with an HDMI 2.0 input will cap a console at 4K 60Hz even if the TV supports 120Hz. Where that matters, connect the console to the TV directly and use eARC for its audio.
Option 3: an AV receiver
The traditional answer: four to seven HDMI inputs, full surround processing, speaker outputs and comprehensive switching. It is also large, expensive and requires speakers.
A receiver makes sense if you want genuine surround sound with separate speakers, if you have many sources, or if you want a single device controlling everything. It does not make sense purely to gain HDMI ports, where a switch costs a fraction as much.
If you buy one, check the HDMI specification carefully. Receivers are kept for a decade and HDMI standards have changed several times, so a receiver that cannot pass what your console outputs becomes the bottleneck of the whole system.
Which to choose
Count what you actually need connected at once
Devices that are rarely used can share a port with a manual swap, though nobody enjoys that.
Identify the most demanding source
Usually a current games console. The switch, soundbar or receiver must support what that device outputs, or it becomes the limit.
Decide whether audio is part of the problem
If ARC is working fine and you only need ports, buy a switch. If ARC is unreliable, route sources through the audio device instead.
Check the TV's port capabilities
Not every port is equal. Put the most demanding device on the best port directly, and put less demanding devices through the switch.
Buy cables rated for the bandwidth
An Ultra High Speed cable for anything 4K above 60Hz. Cables are a common cause of problems blamed on the switch.
Common problems and what causes them
- Black screen when switching inputs: the handshake is failing. Usually an unpowered switch or a marginal cable.
- Audio dropping out intermittently: often a bandwidth issue, sometimes CEC conflicts between multiple devices trying to control each other.
- The switch changing input by itself: automatic switching reacting to a device waking. Disable auto-switch if the box allows it.
- HDR not working through the switch: the switch is not passing the metadata, or the TV port’s enhanced mode is not enabled.
- Everything turning on at once: CEC cascading through the chain. Disabling CEC on devices you do not need it for usually settles it.
Adding a switch adds a device to the HDMI chain, and every additional connection is a place for the handshake to fail. If your setup is already unreliable, fix that first rather than adding another component to an unstable chain.
The cheap alternative nobody mentions
If one of your sources is a streaming stick, consider whether you need it at all. A modern TV or a games console already runs the same apps, and removing a device is cheaper and more reliable than switching between more of them. The same applies to a Blu-ray player used twice a year, which can share a port with something else.
Do HDMI switches reduce picture quality?
A good powered switch rated for your resolution does not. Cheap unpowered switches cause dropouts, sparkles and failed handshakes, particularly at 4K with HDR.
Can I use an HDMI splitter instead?
No. A splitter sends one input to several outputs, which is the opposite of what you need. A switch takes several inputs to one output.
Will a switch work with eARC?
Generally not in the direction people want. ARC and eARC run from the TV back to an audio device, and most switches pass signal one way only. Use a switch for sources and handle audio separately.
Is a receiver worth it just for more ports?
No. A receiver is worth buying for surround sound with separate speakers. For ports alone, a switch costs a fraction as much and takes no space.
Why does my switch cause a black screen on some devices?
The HDCP handshake is failing, often because the switch is unpowered, the cable is marginal, or one device in the chain does not support the content protection version required.
Deciding quickly
Need ports only, sound is fine: powered switch rated for your most demanding source. Need ports and better sound: a soundbar with HDMI inputs, which also removes ARC from the equation for those sources. Want real surround with separate speakers and many devices: a receiver. In all three cases, put the console on the TV’s best port directly and route the less demanding devices through the switching.
