Best Soundbars for TCL 55R615 Roku TV: 7 ARC-Friendly Picks (2026)

The TCL 55R615 is a 55-inch 4K Roku TV from 2018, and its built-in speakers are the weak point of a strong picture. This guide compares seven best soundbars for tcl 55r615 options that connect through the TV's HDMI ARC port or optical output, so you get clearer dialogue and real bass without paying for an eARC connection this TV cannot use.

Quick verdict: the best soundbars at a glance

If you want one short answer, start with the Hisense HS5100 for a complete 5.1 system that is Roku TV Ready, or the TCL S55H if you want a same-brand bar with a wireless subwoofer. The Samsung HW-B750F is the best ARC-native 5.1 package, while the Sony HT-S100F and Roku Streambar SE suit buyers who want a simple single bar.

Our pick for most 55R615 owners is the Hisense HS5100, because it is the only pick here that ships as a full 5.1 system and is made to work with a Roku TV. If you prefer a single bar with a subwoofer, the TCL S55H and the Samsung HW-B750F are the next choices, in that order.

How we selected the best soundbars for tcl 55r615

Every model in this guide is a real product sold in the United States, with published specifications from its manufacturer. We compared channel layout, included hardware, sound formats, HDMI and optical connections, and width against a 55-inch TV, and we ranked ARC and optical compatibility ahead of eARC-only features this TV cannot use.

This guide is based on published manufacturer specifications and independent review coverage. It does not claim testing of its own, and it does not rank products by review scores, because scores use different methods and change with each update. Instead, each pick earns its place for a clear reason: the most complete Roku TV system, the same-brand Atmos bar, the best ARC-native 5.1 package, the strongest bass at its tier, the slimmest subwoofer, the clearest dialogue, or the simplest streaming bar.

The best soundbars for tcl 55r615 for a 55-inch Roku TV

Seven bars cover very different rooms and budgets, so the order below follows the decision most 55R615 owners face first: a complete surround system, a bar with a subwoofer, or a simple single bar. Each section states what is in the box, which connection it uses, and what it gives up.

Hisense HS5100: the complete 5.1 system for a Roku TV

The Hisense HS5100 is the most complete system in this guide, and that is why it leads the list for the 55R615. It ships as a 5.1-channel system with a wireless subwoofer and two rear speakers, so it is the only pick here that gives you real surround sound in one purchase.

Hisense lists a 540-watt total for the HS5100, with a 6.5-inch wireless subwoofer and rear speakers that wire to the subwoofer rather than to the bar. It supports Dolby Digital Plus and DTS Virtual:X, connects through HDMI ARC, and is Roku TV Ready, which means it is designed to work with the Roku TV remote and on-screen menus on a TV like the 55R615. There is no native Dolby Atmos, so height effects are simulated rather than delivered by up-firing drivers.

Buy it if you want a full surround system in one box and you watch movies and sports on your Roku TV. Skip it if your room has no place for rear speakers, or if you want Dolby Atmos, since this system does not offer it.

TCL S55H: the same-brand Atmos bar with a wireless subwoofer

The TCL S55H is the same-brand pick for a 55R615 owner who wants Dolby Atmos and a wireless subwoofer without a complicated setup or extra boxes. It is a 2.1-channel bar from the same maker as the TV, so the remote and setup experience should feel familiar.

TCL lists a 220-watt total for the S55H, with a 5.5-inch wireless subwoofer, Dolby Atmos and DTS Virtual:X, an HDMI eARC port, Bluetooth 5.3 and a width of 31.9 inches. The eARC port works with the 55R615's standard ARC port, but the TV cannot pass the highest-quality Atmos signal, so expect compressed Atmos from streaming apps rather than the full lossless format. AI Sonic calibration and six EQ presets help tune the sound to the room.

Buy it if you want Atmos branding, a real subwoofer and a bar that matches your TCL TV. Skip it if you want true surround speakers, or if you would rather not pay for an eARC port your TV cannot fully use.

Samsung HW-B750F: the ARC-native 5.1 package

The Samsung HW-B750F is the pick for buyers who want a 5.1 package built around the connection the 55R615 actually has on the back. It uses standard HDMI ARC rather than eARC, so nothing in its specification is wasted on a port your TV does not offer.

Samsung lists a 5.1-channel system with six speakers and a 6-inch wireless subwoofer, with Dolby Digital 5.1 and DTS Virtual:X. The dedicated centre channel keeps dialogue clear, the subwoofer adds the low end a bar alone cannot produce, and optional Samsung wireless rear speakers can be added later for true surround. The bar is 40.6 inches wide, and it connects through HDMI ARC or optical, with Bluetooth for music. There is no Dolby Atmos and no eARC port.

Buy it if you want a complete bar-and-subwoofer package that matches the 55R615's ARC port exactly. Skip it if you need Dolby Atmos, or if your TV stand is narrow enough that a 40-inch bar will overhang it.

LG S40T: strong bass for small to medium rooms

The LG S40T is the pick for a 55R615 owner who wants strong bass and a simple setup in a small to medium room. It is a 2.1-channel system with a wireless subwoofer, so it adds the low end that makes movies and music feel fuller without rear speakers.

LG lists a 300-watt total for the S40T, split between a 100-watt bar and a 200-watt wireless subwoofer with a 6-inch driver. It supports Dolby Digital and DTS Digital Surround, connects through HDMI ARC or optical, and offers Bluetooth 5.3, AI Sound Pro and Clear Voice Plus for dialogue. The WOW Interface is designed to work with LG TVs, so that feature will not add anything on a TCL set, but the core sound and connections work the same.

Buy it if you want the strongest bass in this tier and a straightforward bar-and-subwoofer setup. Skip it if you want Dolby Atmos, since this model does not list it, or if you need rear speakers for true surround.

Hisense HS2100: a slim subwoofer for tight spaces

The Hisense HS2100 is the pick for a 55R615 owner whose room has no space for a large subwoofer box. Its wireless subwoofer is unusually slim, so it can sit in a gap beside the TV stand where a standard subwoofer would not fit, even in a small living room.

Hisense lists a 240-watt total for the HS2100, with a wireless subwoofer using a 5.25-inch driver, Dolby Digital Plus and DTS Virtual:X, HDMI ARC, optical, AUX, USB and Bluetooth 5.3. The bar is 31.5 inches wide and the subwoofer is about 4.3 inches wide, which makes the whole system easy to place in a small living room or a bedroom. There is no Dolby Atmos and no rear speakers in the box.

Buy it if your room is tight and you want a real subwoofer that does not dominate the floor. Skip it if you want Dolby Atmos or surround speakers, or if your room is large enough for a bigger system.

Sony HT-S100F: the simplest single bar for dialogue

The Sony HT-S100F is the simplest pick in this guide, and it suits a 55R615 owner who mainly wants clearer dialogue from a single bar. There is no subwoofer to place and no rear speaker to wire, so setup is just one HDMI cable and a single power outlet.

Sony lists a 2.0-channel layout with a 120-watt total, a bass-reflex speaker and an integrated tweeter, with S-Force Pro front surround and Dolby Digital. It connects through HDMI ARC or optical, with USB and Bluetooth 4.2, and the bar is 35.5 inches wide. No subwoofer is included and no add-on subwoofer path is listed for this model, so bass stays limited to what the bar itself can produce.

Buy it if you want the cheapest, simplest upgrade from TV speakers and dialogue is your main complaint. Skip it if you want deep bass for action movies, or if you plan to add a subwoofer later.

Roku Streambar SE: streaming and sound in one small box

The Roku Streambar SE is the pick for a 55R615 owner who wants a second Roku streamer and a better speaker in one small box. It is a 2-in-1 device: a 4K HDR streaming player running Roku OS, plus a stereo soundbar, in a bar that is only 9.6 inches wide.

Roku lists model 9104R with two 1.9-inch full-range drivers, HDMI ARC, optical, Bluetooth 5.0, Wi-Fi and USB, plus speech clarity and volume levelling modes. It supports HDR10 and HDR10+, but it has no Dolby Atmos or DTS:X decoding, and no subwoofer is included, although Roku Wireless Bass and Wireless Speakers are sold separately. Note that the 55R615 already has Roku built in, so the streaming side is only useful if you want a second Roku interface or a spare streamer.

Buy it if you want the smallest bar here and a spare 4K Roku streamer in the same purchase. Skip it if you want surround sound or deep bass, or if a second Roku interface would only duplicate what your TV already does.

What to check before you buy a soundbar

A soundbar is a room purchase as much as an electronics purchase, so the checks below matter more than the channel count on the box. Measure the TV stand, find the HDMI port on the TV, and think about where a subwoofer and any rear speakers will sit.

How to match a soundbar to your room and TV size

Room size decides the system before price does, so start with the space rather than the specification sheet. A compact bar suits a bedroom or a small apartment living room, while a large open room needs a wider bar, a real subwoofer and rear speakers behind the sofa.

A 55-inch TV is about 48 inches wide, so a bar between 32 and 41 inches wide looks balanced under it, and the picks here run from 9.6 to 40.6 inches wide. A small room also changes the bass: a large subwoofer in a small bedroom can overwhelm dialogue, so use the dialogue and night modes on the bars that offer them, and place the subwoofer away from a corner if the bass sounds boomy.

HDMI ARC, eARC and optical: what actually matters

The connection on the back of the TV decides which sound formats the soundbar can receive, so check it before you buy. The 55R615 has three HDMI ports, and owner reports and the 6-Series user guide say the third port is the ARC port, with a separate optical digital audio output beside it.

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. Optical carries Dolby Digital 5.1 and stereo, but it cannot carry Dolby Atmos at all. That is why the ARC-native picks in this guide, such as the Samsung HW-B750F and the Hisense HS5100, fit this TV so well: they ask for nothing more than the ports it has.

Do you need Dolby Atmos, DTS:X or a separate subwoofer?

Dolby Atmos adds height to the sound, DTS:X adds a similar object-based effect from a different format, and a separate subwoofer adds the low end that makes action scenes feel physical. Not every buyer needs all three, so match the formats to what the household actually watches.

A separate subwoofer is the single most noticeable upgrade for movies, music and sports, because a slim bar cannot move enough air for deep bass on its own. On the 55R615, Atmos is limited by the ARC port anyway, so a strong 5.1 system with a real subwoofer, such as the HS5100 or the HW-B750F, will usually give you more than an eARC-only Atmos bar that cannot receive its best signal.

Budget, setup and the costs buyers often miss

The price tier of the bar is only part of the cost, so plan for the extras before you decide. A single bar needs one HDMI cable and a power outlet, while a full system needs power outlets for the subwoofer and each rear speaker, plus a mount if the bar does not sit on the TV unit.

Optional subwoofers and rears for the Sony and Roku bars are sold separately, so a bar can cost far more once the system is complete. If the household rents or moves often, a single bar or a 2.1 system with one wireless subwoofer is easier to pack and set up again than a 5.1 system with rear speakers.

Frequently asked questions about soundbars

The questions below cover the doubts that come up most often before a purchase, from whether this TV has eARC to which size fits a 55-inch set. 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.

Does the TCL 55R615 have HDMI eARC?

No, as far as the published material shows. The 55R615 is a 2018 model with three HDMI ports, and the 6-Series documentation of that era describes a standard HDMI ARC port, not eARC, plus an optical output. No TCL source we found lists eARC for this model.

If you are unsure about your own set, check the label printed beside the HDMI ports on the back of the TV: an eARC port is usually marked eARC, while this TV's port is marked ARC. If the label is worn or unclear, use the optical output as a safe fallback, since most picks in this guide also offer an optical input.

Do the best soundbars for tcl 55r615 need eARC?

No, and that is the central point of this guide. The 55R615 has a standard HDMI ARC port and an optical output, and both carry Dolby Digital 5.1 and stereo perfectly well alone. The picks that lead this guide are built for those connections, not for eARC.

An eARC-only bar is a poor fit for this TV, because it cannot receive the high-quality signal its eARC port is designed for, and it may fall back to basic stereo. If you already own an eARC bar, it will usually still work over the ARC port, but you should not buy an eARC-only bar for this TV on purpose.

What size soundbar fits a 55-inch TV?

A 55-inch TV is about 48 inches wide, so a bar between 32 and 41 inches wide looks balanced underneath it, while a bar wider than the TV can look awkward and may overhang a narrow stand. Measure the stand, not the TV, because the stand is usually narrower than the screen.

The bars in this guide run from 9.6 inches wide for the Roku Streambar SE to 40.6 inches for the Samsung HW-B750F, so every pick here fits under a 55-inch TV. If your stand is very narrow, the Roku bar or one of the 31-inch Hisense and TCL bars is the safer choice.

Conclusion

Start with the Hisense HS5100 for a complete 5.1 Roku TV system, or the Samsung HW-B750F for an ARC-native 5.1 package that matches this TV exactly. If you want a same-brand Atmos bar, the TCL S55H is the pick, and the Sony HT-S100F covers simple dialogue duty. Check the ARC label, measure the stand, and choose the system you will enjoy every day.