Can You Use a Soundbar Without an HDMI ARC Port?

We may receive a commission on purchases made from links. As TVs have become thinner, they often come with small built-in speakers that don't provide the best audio quality. For those who want better sound while watching their favorite shows or movies, a soundbar is a simple and effective solution. It's easy to set up and can significantly enhance your audio experience, even if you're using a budget model under $200. However, for the best performance, it's usually recommended to connect the soundbar using the TV's ARC or eARC port, which are part of the High-Definition Multimedia Interface (HDMI) found on most modern televisions.

Using an ARC or eARC port offers several benefits, such as support for high-resolution audio and surround sound formats. But what if your TV doesn’t have an ARC or eARC port, or if you plan to use the soundbar with another device like a PC? You can still use the soundbar without the HDMI ARC port, and here’s how.

Wired Connection Alternatives to HDMI ARC

Soundbars often come with multiple input options to suit different devices and needs. One common option is the optical input port, also known as Toslink or S/PDIF. This is typically your second-best choice after HDMI ARC or eARC. It's relatively easy to use and only requires an optical cable. However, the optical connection isn't as feature-rich as ARC or its more advanced version, eARC. Like HDMI, it sends a digital signal and can handle both stereo and 5.1 surround sound formats like Dolby Digital. But it can't transmit uncompressed surround sound or spatial audio formats like Dolby Atmos or DTS:X.

In addition to the optical port, you might find a 3.5mm auxiliary port, red and white RCA plugs, or an RCA-style digital coaxial input on some soundbars. These are less common in modern models but can be useful if you don’t have access to an optical port and want a wired connection between your TV and the soundbar. Among these, the digital coaxial input is the best option because it supports the same capabilities as an optical connection and can handle a 24-bit/192kHz audio signal, which is higher than the 24-bit/96kHz supported by optical. The 3.5mm AUX and RCA connections, on the other hand, use analog signals and are limited to stereo audio.

Wireless Alternatives to HDMI ARC

In addition to wired options, many soundbars include Bluetooth support, making them compatible with not just TVs but also smartphones, tablets, and computers. If you prefer a wireless connection or don’t have access to one, you can use Bluetooth to connect your TV and soundbar. However, this type of connection is limited to high-resolution stereo sound, meaning you won’t get the full surround sound or uncompressed audio experience. There's also potential for latency, which could cause lip-sync issues during playback.

Some manufacturers, such as LG, Samsung, and Sony, offer Wi-Fi connectivity between compatible TVs and soundbars. This is usually a brand-specific feature. While Wi-Fi has higher bandwidth than Bluetooth and can carry high-resolution audio and compressed surround sound formats, it still falls short of HDMI eARC, which can handle lossless formats. Additionally, Wi-Fi connections can also experience latency, similar to Bluetooth.

Final Tips for Optimal Setup

No matter which connection method you choose between your soundbar and TV, it's essential to adjust the settings on both devices to ensure the correct source and output options are selected. Since menus vary between different TV and soundbar manufacturers, it's a good idea to consult each device's manual for specific instructions. Also, when using connections other than HDMI ARC, you may need to adjust the audio level separately using the soundbar remote, rather than relying on your TV’s volume controls.

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