Choosing the best audiocablefor soundbars for clear TV sound

A soundbar can only sound as good as the connection feeding it, so the cable matters more than most buyers expect. This guide compares seven best audiocablefor soundbars options across HDMI, optical and AUX, explains which connection suits each TV and soundbar, and helps you avoid buying a cable that cannot carry the sound format you want.

Quick verdict: the best audiocablefor soundbars at a glance

Start with HDMI when your TV and soundbar both have an HDMI ARC or eARC port, because that single cable carries sound from the TV and lets the TV remote control the volume. Choose optical when HDMI is not available or is already in use, and keep a 3.5mm AUX cable for older equipment, a computer or a simple stereo connection.

Our pick for most soundbar owners is the Zeskit Maya, because it is a certified Ultra High Speed HDMI cable with 48Gbps bandwidth and eARC support, so it covers Dolby Atmos from a modern TV without a second cable. If your TV and soundbar only need 4K at 60Hz, the Monoprice cable is the more sensible HDMI choice, while optical buyers should start with the Cable Matters cable.

How we selected the cables in this guide

Every cable in this guide is a real product sold in the United States, with published specifications from its manufacturer or a retailer listing. We compared connection type, bandwidth, supported audio formats, connector type, length options and build, and we left out cables whose specifications could not be checked.

This guide is based on published manufacturer and retailer specifications. It does not claim testing of its own, and it does not rank cables by review scores, because scores use different methods and change with each update. Instead, each pick earns its place for a clear reason: the strongest HDMI cable for Atmos, the best HDMI cable for gaming, the most reliable budget HDMI cable, a simple spare, two optical options with different format limits, or an analog cable for older gear.

The best audiocablefor soundbars by connection type

HDMI, optical and AUX solve different problems, so the order below follows the connection most buyers should check first. HDMI comes first for modern TVs, optical follows for older sets and spare ports, and AUX closes the list for analog sources that have no digital output at all.

Zeskit Maya Ultra High Speed HDMI cable: certified 48Gbps for eARC and Atmos

The Zeskit Maya is the strongest HDMI pick in this guide, and that is why it leads the list for a modern soundbar. Zeskit lists it as a certified Ultra High Speed HDMI cable with 48Gbps bandwidth, support for 4K at 120Hz and 8K at 60Hz, and eARC, variable refresh rate and Dolby Atmos support.

For a soundbar connected through HDMI eARC, bandwidth and certification matter because the cable must carry high-quality audio back from the TV as well as video to it. The Maya lists HDCP 2.2 and 2.3, Dolby Vision, DTS:X and Dolby TrueHD among its supported features, and its lengths run from 1.5 feet to 23 feet in the listings checked, with a 5-foot version used as the reference here. The connectors are standard HDMI male to male, so the cable fits the HDMI eARC port on a TV and the HDMI port on a soundbar without an adapter.

Buy it if your TV and soundbar both support HDMI eARC and you want Dolby Atmos without worrying about the cable. Skip it if your TV only has standard HDMI ARC and 4K at 60Hz, since a certified 18Gbps cable covers that setup and the extra bandwidth will go unused.

Belkin 8K Ultra High Speed HDMI 2.1 braided cable: 48Gbps for gaming and high refresh rates

The Belkin 8K Ultra High Speed HDMI 2.1 Braided Cable, model AV10176BT2M-BLK, is the pick for a soundbar setup that also serves a games console. Belkin lists speeds up to 48Gbps, support for 4K at 120Hz and 8K at 60Hz, variable refresh rate and HDR, including Dolby Vision and HDR10.

For a living room where a PlayStation 5 or Xbox Series X connects through the TV or the soundbar, a 48Gbps cable keeps the video path open for high refresh rates while the audio path feeds the soundbar. The braided version is sold in 1-metre and 2-metre lengths, with the 2-metre version used as the reference here, and it uses standard HDMI Type A male connectors at both ends. Its PET braided jacket is a practical detail in a busy TV unit, where cables are pulled, bent and tucked behind furniture.

Buy it if you play console games at 4K and 120Hz and want one cable that covers video and sound together. Skip it if you only watch streaming TV at 4K and 60Hz, or if you need a length longer than 2 metres, since this braided version is only listed in 1-metre and 2-metre options.

Monoprice Certified Premium High Speed HDMI cable: reliable 18Gbps for 4K at 60Hz

The Monoprice Certified Premium High Speed HDMI Cable, product 15428 in the 6-foot version, is the reliable mid-tier HDMI pick in this guide. Monoprice lists 18Gbps bandwidth, 4K at 60Hz, HDR, HDCP 2.2 and HDMI 2.0, with each length tested and certified by an HDMI Authorized Test Center.

For most soundbar owners, 18Gbps is enough, because it carries 4K video at 60Hz and the compressed Dolby Atmos and Dolby Digital 5.1 formats that streaming services use over HDMI ARC. Monoprice lists support for up to 32 audio channels and a 1536 kHz audio sampling rate, and the 6-foot cable uses 30AWG wire with a CL3 fire rating, which suits in-wall installation. Other lengths are listed from 3 feet to 30 feet, so a longer run to a wall-mounted TV is available in the same range.

Buy it if your TV and soundbar use HDMI ARC, you stream at 4K and 60Hz, and you want a certified cable without paying for 48Gbps bandwidth. Skip it if you need 4K at 120Hz, 8K, or lossless Dolby Atmos over eARC, since those need a 48Gbps Ultra High Speed cable instead.

Amazon Basics High-Speed HDMI cable: a simple spare for everyday soundbars

The Amazon Basics High-Speed HDMI Cable in the 6-foot version is the simple spare pick in this guide. Amazon Basics lists 18Gbps bandwidth, 4K video at 60Hz with 2160p resolution and 48-bit per pixel color depth, plus Ethernet, 3D and Audio Return Channel support.

For a second TV, a bedroom soundbar or a replacement for a lost cable, this is the least complicated option here. It is a standard HDMI male to male cable, it connects Blu-ray players, streaming devices, consoles and computers to TVs and soundbars, and it is sold in multi-packs, so keeping a spare in a drawer is easy. Its 18Gbps limit is the same as the Monoprice cable, so it covers the same 4K at 60Hz streaming and ARC audio use, but it does not cover 4K at 120Hz or 8K.

Buy it if you need a straightforward HDMI cable for a standard ARC setup and you want a spare at the budget tier. Skip it if you need eARC with lossless Atmos, a certified premium label, or a long in-wall run, since those cases call for the Zeskit or Monoprice cables above.

Cable Matters Premium Optical Audio cable: braided Toslink for optical soundbars

The Cable Matters Premium Optical Audio Cable, model 120001-6 in the 6-foot version, is the first optical pick in this guide. Cable Matters lists a fiber optic Toslink cable with metal connectors, a braided jacket and a thick PVC outer layer, in lengths from 3 feet to 35 feet.

For a soundbar with an optical input and a TV with an optical output, this cable carries digital audio without electrical interference, because fiber optic cable is not affected by electromagnetic interference in the same way as copper cable. The listing describes support for uncompressed PCM audio and compressed 5.1 and 7.1 surround sound, including Dolby Digital Plus and DTS-HD, and it connects TVs, Blu-ray players, consoles and soundbars with a standard Toslink port. It is not compatible with mini-Toslink or 3.5mm optical ports, so check the port shape before buying.

Buy it if your TV or soundbar lacks a free HDMI port, or if you want a durable optical cable for a fixed setup. Skip it if you want Dolby Atmos, since optical cannot carry Dolby Atmos at all, and choose HDMI eARC instead when Atmos matters.

FosPower Optical Digital Audio cable: a second optical option with clear format limits

The FosPower Optical Digital Audio Cable, model FOSCBL-2026 in the 6-foot version, is the second optical pick in this guide. FosPower lists Toslink male to Toslink male connectors, a fiber core, 24K gold-plated conductors and ferrules, a nylon braided jacket and a 6MHz transmission frequency bandwidth.

For an optical setup, the FosPower cable is useful because its published limits are stated plainly. It supports uncompressed PCM audio and compressed 5.1 and 7.1 digital surround sound, including Dolby Digital Plus and DTS-HD High Resolution Audio, and FosPower states that it does not support Dolby TrueHD and DTS-HD Master Audio. That limit matters for Blu-ray owners, who should use HDMI for those lossless formats, while streaming and broadcast viewers will not miss them. The cable is also listed in longer lengths, including a 50-foot version, for a soundbar placed far from the TV.

Buy it if you need a straightforward optical cable and you want its format limits stated before you buy. Skip it if you need Dolby TrueHD, DTS-HD Master Audio or Dolby Atmos, since optical cannot carry those formats and HDMI is the right connection instead.

UGREEN Braided 3.5mm AUX cable: analog stereo for computers and older gear

The UGREEN Braided 3.5mm AUX Cable, model 50363 in the 2-metre version, is the analog pick in this guide. UGREEN lists a 3.5mm stereo male to male cable with 24K gold-plated plugs, aluminium housings, enamelled pure copper conductors, double shielding and a nylon braided jacket.

For a soundbar with a 3.5mm AUX input, a computer, a phone or an older music player, this cable carries left and right stereo audio with no digital setup at all. UGREEN lists a pull test rating of 50kg and a bend lifespan of more than 10,000 bends for this model, which matters for a cable that is plugged and unplugged often. It is a 3-pole stereo cable, so it carries stereo audio only and not a headset microphone, and it cannot carry surround sound or Dolby Atmos.

Buy it if your source has only a 3.5mm output, or if you want a simple wired connection from a computer to a soundbar. Skip it if your TV and soundbar both have HDMI or optical ports, since a digital connection carries surround sound and keeps the volume control on the TV remote.

What to check before you buy an audio cable for a soundbar

A cable is a small purchase that can cause a large annoyance, so check the ports before you order. Look at the back of the TV and the soundbar, note which ports are free, and measure the distance between them, including the route the cable will take around a stand or a wall mount.

How to match the best audiocablefor soundbars to your TV ports

Start with the ports, not the cable, because the ports decide which formats are possible. HDMI eARC is the first choice for a modern TV and soundbar, standard HDMI ARC is next, optical follows for older sets, and 3.5mm AUX is the fallback for analog sources and computers.

For a TV with HDMI eARC, choose a 48Gbps Ultra High Speed HDMI cable such as the Zeskit Maya or the Belkin cable, so Dolby Atmos from streaming and Blu-ray is not limited by the cable. For a TV with only HDMI ARC or optical, an 18Gbps HDMI cable or a Toslink cable covers Dolby Digital 5.1 and compressed Atmos, while a soundbar with only a 3.5mm input needs the UGREEN AUX cable and will play stereo only.

HDMI, optical and AUX: what each connection can and cannot carry

The connection decides the sound formats, so a cable cannot add a format the port does not support. HDMI eARC carries the highest-quality audio, including Dolby Atmos from Dolby TrueHD, while standard HDMI ARC carries compressed Atmos and Dolby Digital 5.1, and optical carries Dolby Digital 5.1 and stereo but cannot carry Dolby Atmos at all.

AUX is different again, because it is analog stereo only, with no surround sound, no Dolby format and no remote volume control through the TV in most setups. That makes it the right choice for a computer or a phone, and the wrong choice for a home theater, where HDMI or optical keeps the sound digital from the TV to the soundbar. When in doubt, use the highest digital connection both devices share.

Length, build and the mistakes buyers often make

Measure the run before you buy, because a cable that is too short is useless and a cable that is far too long leaves slack behind the TV unit. A 3-foot or 6-foot cable suits a soundbar under the TV, a 10-foot cable suits a soundbar on a separate stand, and a run over 15 feet needs a cable rated for that length.

The common mistakes are easy to avoid. Do not buy a mini-Toslink cable for a standard Toslink port, do not expect optical to carry Atmos, do not buy a 48Gbps cable for a TV that only supports 4K at 60Hz, and do not forget to remove the protective rubber tip covers from an optical cable before plugging it in. Check the TV audio output setting after connecting, since some TVs keep their own speakers on until the output is changed.

Frequently asked questions about audio cables for soundbars

The questions below cover the doubts that come up most often before a purchase, from whether HDMI is always better than optical to which cable fits a common TV and soundbar. Each answer follows the same rule as the rest of this guide: it states what the specifications support, and it names the case where the answer changes.

Is HDMI always better than optical for a soundbar?

Yes, for a modern TV and soundbar, because HDMI eARC carries Dolby Atmos and lets the TV remote control the soundbar volume, while optical cannot carry Atmos and needs a separate remote or the soundbar remote. Optical is still a good choice when HDMI is not available, when the HDMI port is already in use, or when an older TV has no ARC port at all.

Do I need a 48Gbps HDMI cable for my soundbar?

You need a 48Gbps cable only when your TV and soundbar both support HDMI eARC with lossless Dolby Atmos, or when a console needs 4K at 120Hz through the same path. For streaming at 4K and 60Hz over standard HDMI ARC, a certified 18Gbps cable such as the Monoprice or Amazon Basics cable is enough, and the extra bandwidth will not change the sound.

Can I use a 3.5mm AUX cable with a soundbar?

Yes, when the soundbar has a 3.5mm AUX input and the source has a 3.5mm output, such as a computer, a phone or an older music player. The sound will be stereo only, with no surround sound and no Dolby format, so use HDMI or optical instead when both devices offer a digital port and you want surround sound for movies.

Conclusion

Start with the Zeskit Maya for HDMI eARC and Dolby Atmos, or the Monoprice cable for a reliable 4K at 60Hz ARC setup. If HDMI is not available, the Cable Matters optical cable covers most soundbars well, and the UGREEN AUX cable handles computers and older gear. Check your ports and measure the run before you choose.