Samsung HW-S700D vs LG S70TR: Which Soundbar Delivers Better Audio for Your Money?

If you've ever cranked up an action movie only to find yourself reaching for the volume control every few seconds—dialogue too quiet, explosions too loud—you know exactly why soundbars exist. Modern TVs, despite their impressive picture quality, pack speakers that are about as thick as a smartphone. The result? Audio that sounds like it's coming from inside a cardboard box.

That's where soundbars like the Samsung HW-S700D ($377.99) and LG S70TR ($399.99) come in. But here's the thing: these two take completely different approaches to solving your TV's audio problems, and understanding those differences will help you pick the right one for your setup.

Understanding What Makes a Great Soundbar

Before diving into the specifics, let's talk about what actually matters when shopping for a soundbar. The most important consideration is channel configuration—those numbers like 3.1 or 5.1.1 that describe how many speakers and subwoofers are working together. Think of it like this: more channels generally mean more immersive sound, but they also require more space and cost more money.

The first number represents main speakers (left, center, right), the second is subwoofers for bass, and the third (when present) indicates height speakers for overhead effects. So a 5.1.1 system has five main speakers, one subwoofer, and one height channel—significantly more complex than a 3.1 setup.

Physical design matters just as much as the numbers. Some soundbars prioritize being ultra-thin to disappear under your TV, while others embrace a more substantial presence to house better speakers. Connectivity options, room correction features, and how well the soundbar integrates with your TV's ecosystem all play crucial roles in your daily experience.

The Two Contenders: Different Philosophies, Different Results

The Samsung HW-S700D launched in late 2023 as Samsung's answer to the "disappearing soundbar" trend. At just 1.4 inches tall, it's designed to slide under wall-mounted TVs without blocking any sensors or looking bulky. It's a 3.1.2-channel system, meaning it has left, center, and right speakers, plus a wireless subwoofer and virtualized height effects.

Samsung's approach here is all about refinement and integration. Instead of cramming your room full of speakers, they're using advanced digital processing to create the illusion of surround sound from a single bar. Their Q-Symphony technology is particularly clever—it actually uses your Samsung TV's built-in speakers alongside the soundbar, creating a larger virtual soundstage without additional hardware.

The LG S70TR, released in October 2024, takes the opposite approach. This 5.1.1-channel system includes physical wireless rear speakers that you place behind your seating area, plus a substantial subwoofer. LG is betting that there's no substitute for actual speakers positioned around your room, and they're probably right from a pure audio perspective.

LG's WOW Orchestra feature works similarly to Samsung's Q-Symphony, but it's designed specifically for LG's QNED TVs. The newer release date means LG incorporated some lessons learned from earlier models, particularly around wireless connectivity and setup simplicity.

Audio Performance: Where the Real Differences Show

Surround Sound and Immersion

This is where these two soundbars diverge most dramatically. The Samsung relies on what's called virtualized surround sound—using digital processing and carefully angled drivers to bounce sound off your walls and create the illusion that audio is coming from behind you. It's impressive technology, and in the right room with the right wall surfaces, it can work surprisingly well.

I've tested similar virtualization systems, and they work best when you're sitting in that sweet spot directly in front of the TV. Move too far to one side or have a room with lots of soft furnishings that absorb sound reflections, and the magic starts to fade. The Samsung's SpaceFit Sound Pro tries to compensate by using the soundbar's built-in microphone to analyze your room and adjust the audio accordingly—a feature that's genuinely helpful in optimizing performance for your specific space.

The LG takes a more traditional but effective route with actual wireless rear speakers. When you hear a helicopter flying overhead in a movie, those rear speakers can create genuine directional audio that moves around the room. There's no substitute for this kind of physical speaker placement when it comes to true surround immersion.

In my experience testing 5.1 systems versus virtualized alternatives, the physical speakers win every time for movies and gaming. But—and this is important—only if you can position them properly and don't mind the additional components cluttering your space.

Dialogue Clarity: A Crucial Everyday Feature

Both soundbars excel here, but through different methods. The Samsung's Active Voice Amplifier (AVA) is genuinely impressive technology that automatically detects when dialogue is happening and adjusts the audio mix in real-time. During loud action sequences, it can boost the center channel volume so you don't lose track of what characters are saying.

What makes this particularly useful is the independent center channel volume control. I can't tell you how many times I've wished for this exact feature when watching movies late at night. You can boost dialogue without making explosions wake up the neighbors.

The LG's Clear Voice Plus takes a similar approach but requires more manual adjustment. It analyzes the audio signal and enhances speech frequencies, but it's not quite as automatic as Samsung's implementation. However, the LG's dedicated up-firing center channel can provide excellent dialogue clarity once properly configured.

For everyday TV watching, this difference matters more than you might think. The Samsung's set-it-and-forget-it approach to dialogue enhancement gives it a real advantage for most users.

Bass Performance and Room-Filling Sound

Here's where the LG's more substantial hardware pays dividends. The Samsung includes a 6-inch wireless subwoofer that's compact and unobtrusive—perfect for apartments or smaller rooms where space is at a premium. It provides adequate bass for most content, but it's clearly prioritizing size over raw output.

The LG's subwoofer is a different beast entirely. With a 7-inch front-firing driver and a 3-inch rear port, powered by 220 watts of dedicated amplification, it can shake the room when called upon. This makes a dramatic difference with movie soundtracks, particularly those bass-heavy action sequences that really benefit from low-frequency extension.

In practical terms, if you're in a small apartment, the Samsung's subwoofer is probably sufficient and won't annoy neighbors. If you have a larger living room or want that true home theater experience, the LG's more powerful bass response becomes a significant advantage.

Gaming Performance: Low Latency and Spatial Audio

Both soundbars include gaming-specific features, but they approach the challenge differently. The Samsung's Game Mode Pro focuses on directional audio processing, helping you pinpoint enemy locations in competitive games. Combined with its eARC support, it can handle audio from gaming consoles with minimal delay.

The LG goes further with Variable Refresh Rate (VRR) and Auto Low Latency Mode (ALLM) support up to 120Hz. This means smoother gameplay with compatible consoles like the PlayStation 5 or Xbox Series X. The physical rear speakers also provide genuine positional audio that can give you a competitive edge in games where audio cues matter.

For serious gamers, the LG's combination of low input lag and true surround positioning makes it the better choice. For casual gaming, both perform well enough that other factors become more important.

Design and Installation Reality Check

The Samsung's ultra-slim design isn't just about aesthetics—it solves real practical problems. Wall-mounted TVs often have limited clearance, and traditional soundbars can block IR sensors or look awkwardly proportioned. The Samsung's 1.4-inch height means it virtually disappears under most TVs.

Installation is genuinely simple: mount the soundbar, place the wireless subwoofer somewhere in the room, and you're done. The subwoofer pairs automatically, and if you have a Samsung TV, the One Remote functionality means you don't need to juggle multiple controllers.

The LG requires more planning and patience. You need power outlets for the rear speakers, and finding the optimal placement takes experimentation. The soundbar itself is taller at 2.5 inches, which might block TV sensors if placed on a stand rather than wall-mounted.

However, once properly set up, the LG's four-component system creates a more enveloping audio environment. The rear speakers are truly wireless (except for power), so you don't need to run cables across your room.

Technical Evolution and Modern Features

Both soundbars represent significant improvements over their predecessors. The Samsung benefits from lessons learned with earlier Q-Symphony implementations—the integration with Samsung TVs is smoother, and the room correction algorithms are more sophisticated than previous generations.

The LG's October 2024 release date means it incorporates newer wireless technology and improved connectivity. The WOW Orchestra feature has been refined based on user feedback from earlier models, and the setup process is more streamlined than you might expect from a multi-component system.

Both support modern audio formats including Dolby Atmos, though they implement it differently. The Samsung uses virtualization to create height effects, while the LG has dedicated up-firing drivers for more authentic overhead sound.

Home Theater Considerations

If you're setting up a dedicated home theater room, the differences between these soundbars become more pronounced. The LG S70TR is clearly designed with this use case in mind. The physical rear speakers, more powerful subwoofer, and higher total wattage (500W versus 320W) create a more cinema-like experience.

In a proper home theater setup, you can optimize speaker placement for the best possible surround effect. The wireless rear speakers give you flexibility in positioning without the cable management headaches of traditional surround systems.

The Samsung HW-S700D, while excellent for living room setups, is more limited in a dedicated theater environment. The virtualized surround works best in smaller, more controlled spaces where wall reflections can be predicted and optimized.

Value Analysis: What You're Really Paying For

At $377.99 versus $399.99, we're talking about a $22 difference—not enough to be the deciding factor for most people. The real question is what you get for that extra money with the LG.

The Samsung gives you premium dialogue enhancement, seamless integration with Samsung TVs, and a virtually invisible installation. You're paying for convenience and sophisticated audio processing in a minimal package.

The LG delivers authentic surround sound, more powerful bass, and true 5.1.1 channel separation. You're paying for more hardware, more immersive audio, and the flexibility to create a genuine surround sound environment.

From a pure performance-per-dollar perspective, the LG offers more audio capability for the small price premium. But value isn't just about raw performance—it's also about how well the product fits your specific needs and space constraints.

Making the Right Choice for Your Setup

After extensive consideration of both options, here's how I'd approach the decision:

Choose the Samsung HW-S700D if you value simplicity and have space constraints. It's perfect for wall-mounted TV setups where you want excellent audio without visual clutter. The dialogue enhancement alone makes it worthwhile for anyone who watches a lot of TV shows or movies with complex soundtracks. If you own a Samsung TV, the ecosystem integration adds significant convenience value.

Go with the LG S70TR if you want the most immersive audio experience possible under $400. The physical rear speakers create genuine surround effects that virtualization simply cannot match. It's the better choice for movie enthusiasts, gamers who value positional audio, and anyone with a larger room that can accommodate the additional components.

The bottom line? Both soundbars dramatically improve upon TV audio, but they're designed for different priorities. The Samsung prioritizes elegance and dialogue clarity, while the LG focuses on immersive surround sound. Your room size, aesthetic preferences, and audio priorities should drive your decision—but either choice will transform your TV watching experience in meaningful ways.

Samsung HW-S700D 3.1 Channel Slim Soundbar Deals and Prices

LG S70TR 5.1.1 Channel Soundbar with Dolby Atmos and WOW Orchestra Soundbar Deals and Prices