Choosing Between Premium and Budget Soundbars: A Deep Dive into Audio Technology

When your TV's built-in speakers just aren't cutting it anymore, you're faced with an interesting decision in today's soundbar market. Do you go for the latest cutting-edge technology with all the bells and whistles, or do you prioritize getting the most bang for your buck? This comparison between the Klipsch Flexus Core 300 ($1,199) and the LG S70TR ($399.99) perfectly illustrates this dilemma – and the answer might surprise you.

Understanding Modern Soundbar Technology

Before we dive into specifics, let's talk about what makes a good soundbar in 2024 and beyond. The soundbar market has evolved dramatically over the past few years, moving from simple stereo sound enhancement to sophisticated multi-channel systems that can genuinely compete with traditional home theater setups.

The most important advancement has been Dolby Atmos support. Think of Atmos as creating a "bubble" of sound around you rather than just pushing audio from left to right. Traditional surround sound works on a horizontal plane, but Atmos adds height information – sounds can now come from above, creating that immersive feeling you get in movie theaters. Both soundbars we're comparing support this technology, but they implement it very differently.

Another crucial factor is room correction technology. Your living room isn't an acoustically perfect space – it has furniture, walls, and irregular shapes that can make audio sound boomy, thin, or unclear. Advanced room correction systems use microphones to analyze how sound bounces around your specific room, then automatically adjust the audio to compensate for these acoustic problems.

Product Background and Release Timeline

The Klipsch Flexus Core 300 represents Klipsch's 2025 flagship release, marking a significant collaboration with audio giant Onkyo. This partnership brings together Klipsch's legendary horn-loaded tweeter technology (which they've been perfecting since 1946) with Onkyo's manufacturing expertise and digital processing capabilities. The timing is important – this soundbar incorporates technology that was only available in high-end AV receivers just a few years ago.

The LG S70TR, while not as precisely dated in available information, represents LG's current mid-range offering that focuses on integration with their TV ecosystem. LG has been steadily improving their WOW Orchestra technology, which allows their soundbars to work in harmony with the speakers built into compatible LG TVs. This creates a more enveloping sound field by using every available driver in your entertainment setup.

Audio Architecture: Where Engineering Meets Reality

Here's where things get really interesting from a technical standpoint. The Klipsch Flexus Core 300 uses what's called a "discrete driver" approach with 13 individual speakers packed into that 54-inch chassis. Let me break this down because it matters for your listening experience.

Inside the Klipsch, you'll find four 2.25-inch front-firing drivers handling the main audio channels, plus Klipsch's signature 0.75-inch horn-loaded tweeter for the center channel. The horn design is crucial here – it's like a megaphone that focuses and amplifies high frequencies, making dialogue incredibly clear even at low volumes. I've tested dozens of soundbars over the years, and Klipsch's horn technology consistently delivers the most natural-sounding voices.

What's particularly impressive is the four built-in 4-inch subwoofers. Most soundbars this size simply can't produce meaningful bass without an external subwoofer taking up floor space. The Klipsch manages to pack enough low-frequency power into the main unit that you genuinely don't need a separate sub for most rooms. The frequency response extends down to 43Hz, which covers the fundamental frequencies of most movie soundtracks and music.

For height effects, the Klipsch uses two dedicated 2.25-inch up-firing drivers that bounce sound off your ceiling, plus two side-firing drivers for surround immersion. This creates what's called a 5.1.2 configuration – five main channels, one subwoofer channel (built-in), and two height channels.

The LG S70TR takes a different approach with its 5.1.1 setup. Instead of building everything into the main bar, it includes a separate wireless subwoofer with a 7-inch driver and 220 watts of amplification. This external sub can often produce deeper, more powerful bass than built-in drivers, but it requires floor space and careful positioning to avoid boomy or uneven bass response.

The LG's single height channel relies more heavily on digital signal processing (DSP) to create the illusion of overhead sound. While this can be effective, it's generally not as convincing as the Klipsch's dedicated up-firing drivers that actually project sound toward your ceiling.

Room Correction: The Game-Changing Technology

This is where the Klipsch Flexus Core 300 truly sets itself apart. It's the world's first soundbar to include Dirac Live room correction – technology that typically costs thousands of dollars in high-end AV receivers. Let me explain why this matters so much.

Every room has acoustic problems. Hard surfaces like windows and walls reflect sound, creating echoes and frequency peaks. Soft surfaces like couches and curtains absorb certain frequencies, creating dips in the response. Your listening position relative to walls affects how bass sounds. Without correction, even the best speakers can sound mediocre in a challenging room.

Dirac Live uses sophisticated algorithms to analyze these problems using the included measurement microphone. You place the mic at your listening position, and the system plays test tones while measuring how they sound in your specific space. It then creates custom filters that pre-compensate for your room's acoustic signature, delivering more accurate, balanced sound.

The included version corrects frequencies up to 500Hz, which covers the critical midrange where voices live and where most room problems occur. There's an optional upgrade to full-bandwidth correction, but honestly, the included version handles the most important frequency range where room issues are most audible.

The LG S70TR offers what LG calls "AI Sound Pro," which analyzes content and adjusts the sound profile automatically. While helpful, this is content-based processing rather than room-based correction. It can boost dialogue when it detects speech-heavy content or enhance bass for action scenes, but it can't fix the fundamental acoustic issues that room correction addresses.

Connectivity and Future-Proofing

Here's where the three-year price difference really shows its value in the Klipsch. The Klipsch Flexus Core 300 includes HDMI 2.1 with full 8K/60Hz and 4K/120Hz passthrough capability. If you're a gamer with a PlayStation 5, Xbox Series X, or high-end gaming PC, this matters enormously. These consoles can output 4K resolution at 120 frames per second, creating incredibly smooth gameplay – but only if every component in the chain supports these specifications.

The LG includes HDMI eARC (enhanced Audio Return Channel), which handles standard 4K content fine, but lacks the bandwidth for 8K or high-frame-rate 4K gaming. For most users today, this isn't a limitation, but it could matter as content and gaming evolve over the next few years.

Both soundbars support the major streaming services, but the Klipsch goes further with AirPlay 2, Google Cast, Spotify Connect, and Tidal Connect built-in. This means you can stream music directly to the soundbar without using your TV at all – important for serious music listening where you want to bypass any processing or potential quality loss from your TV.

Real-World Performance: Movies, Music, and Gaming

In my experience testing both types of systems, the performance differences become obvious pretty quickly. For movie watching, both soundbars deliver a genuinely immersive Dolby Atmos experience that's miles better than TV speakers. The LG S70TR actually has an advantage in some ways here – that external subwoofer can really shake the room during action sequences, and the complete system approach means everything works together right out of the box.

However, the Klipsch Flexus Core 300 reveals its strengths in more subtle ways. Dialogue clarity is exceptional thanks to that horn-loaded tweeter, and the overall tonal balance is more natural. During complex movie scenes with lots of simultaneous sounds, the Klipsch maintains better separation between different audio elements. You can follow individual conversations in crowd scenes or distinguish between different instruments in movie soundtracks.

For music listening, the difference is even more pronounced. The Klipsch delivers what I'd call "audiophile-grade" performance from a soundbar form factor. The built-in room correction helps tremendously here, ensuring that your favorite songs sound balanced rather than boomy or harsh. The LG is perfectly adequate for background music, but if you're someone who really listens to music – not just has it playing while doing other things – the Klipsch justifies its higher price.

Gaming performance depends on your setup. The Klipsch's HDMI 2.1 support means zero compromise for next-gen gaming, while the room correction can actually improve positional audio in competitive games by ensuring all frequencies are properly balanced.

Expandability: Starting Small vs. Building Big

One of the most significant differences between these soundbars is their approach to system expansion. The LG S70TR gives you everything upfront – wireless subwoofer, rear speakers, the complete 5.1.1 experience for under $400. This is genuinely impressive value and perfect for users who want the full experience immediately without thinking about future upgrades.

The Klipsch Flexus Core 300, by contrast, is designed as the foundation of a potentially much larger system. You can add wireless Flexus Surr 200 speakers for true rear surround sound, and up to two Flexus Sub 200 wireless subwoofers for even more bass impact. This modular approach means you could eventually have a system that rivals traditional component-based home theaters, but it also means the final cost could exceed $2,000.

Which approach is better depends entirely on your situation. If you're in an apartment or smaller space and want great sound now, the LG's complete package makes perfect sense. If you're in a larger home and envision gradually building a serious home theater system, the Klipsch's expandability is invaluable.

The Home Theater Context

In a dedicated home theater room, both soundbars face some fundamental limitations compared to traditional component systems. However, they each handle these limitations differently.

The Klipsch Flexus Core 300 comes closer to component-level performance through its discrete driver array and room correction technology. In a larger room with a projector setup, the Klipsch's higher output capability (106 dB maximum) and expansion options make it a viable alternative to traditional receivers and separate speakers. The ability to add wireless rear speakers means you can achieve true surround sound without running speaker wire across the room.

The LG S70TR works well in smaller to medium-sized home theater setups, particularly if you're using an LG TV or projector. The WOW Orchestra feature, which synchronizes the soundbar with your LG TV's speakers, can create a surprisingly wide and immersive soundstage in rooms where you might not be able to position rear speakers effectively.

Value Proposition: Beyond the Price Tag

Here's where the conversation gets nuanced. The LG S70TR at $399.99 represents extraordinary value for what you get – a complete Dolby Atmos system with wireless components that would have cost over $1,000 just a few years ago. For the majority of users who primarily watch streaming content and want a significant upgrade over TV speakers, it's hard to argue against this value proposition.

The Klipsch Flexus Core 300 at $1,199 is targeting a different kind of value – long-term satisfaction for users who care deeply about audio quality and want room to grow. The Dirac Live technology alone would cost hundreds of dollars as an upgrade on high-end AV receivers. If you're someone who's frustrated by soundbars that sound great at the store but disappointing in your room, the room correction feature could be worth the price difference by itself.

Making the Decision: Practical Considerations

After testing both approaches extensively, here's how I'd recommend thinking about this decision:

Choose the LG S70TR if you want immediate satisfaction at a fantastic price point. It's perfect for apartments, smaller living rooms, or situations where you want great sound without complexity. The complete package approach means no decision fatigue about additional components, and LG's ecosystem integration works beautifully if you own their TVs.

Go with the Klipsch Flexus Core 300 if you're building a system for the long term and audio quality is a genuine priority. The room correction technology and discrete driver implementation deliver noticeably better sound, particularly for music listening. The expandability means you won't outgrow this soundbar if you move to a larger space or decide you want more immersive surround sound.

The Bottom Line

Both soundbars succeed in their intended missions. The LG S70TR proves that excellent home theater sound doesn't require a huge investment, while the Klipsch Flexus Core 300 demonstrates how far soundbar technology has evolved, bringing features that were exclusive to high-end component systems just a few years ago.

Your choice ultimately comes down to priorities: immediate complete satisfaction at a great price, or premium performance with room to grow. Either way, you'll end up with dramatically better sound than what your TV provides on its own – and isn't that really the point?

Klipsch Flexus Core 300 Soundbar Deals and Prices

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