Monoprice Monolith THX-365C vs. Polk Audio T30

Monoprice Monolith THX-365C Center Channel Speaker Polk Audio T30 Center Channel Speaker
$500 $180
Dimensions (H × W × D)
9.70” × 22.90” × 10.80”
246mm × 582mm × 274mm
6.50” × 19.00” × 8.50”
165mm × 483mm × 216mm
Power Type
Passive Passive
Frequency Response
65-24,000 Hz 55-24,000 Hz

Key Takeaways

TLDR Summary: Two center channel contenders, the Monoprice Monolith THX-365C and Polk Audio T30, present a stark contrast in the home theater landscape. The Monolith THX-365C, backed by THX certification, promises cinematic precision and a robust build, appealing to the discerning audiophile. Meanwhile, the Polk Audio T30 offers an accessible entry point for budget-conscious enthusiasts with a warm sound profile. The Monoprice is the heavyweight, engineered for the immersive experience, while Polk pares back on frills, focusing on delivering clear dialogue. Your choice hinges on whether you prioritize performance perfection or value versatility in your sonic centerpiece.

Speaker Comparison

When setting up a home theater system, the center channel speaker is the cornerstone of audio performance, anchoring dialogue and on-screen action directly to your screen. In the search for the perfect center channel, we've got two contenders that offer distinct experiences for movie lovers and audiophiles alike: the Monoprice Monolith THX-365C and the Polk Audio T30. These two speakers, while serving the same purpose, cater to different audiences and budgets, offering unique sound signatures that can greatly impact your home cinema experience.

The Monolith THX-365C: A Peek into THX Certified Sound

The Monoprice Monolith THX-365C is not just a speaker; it's a statement. With THX certification, this center channel promises audio fidelity that meets strict standards for volume, quality, and realism. The Monolith delivers a robust sound with fine-tuned clarity and precision, crafted for those who crave that cinematic immersion. Featuring two 6.5-inch woofers and a 2-inch silk dome midrange driver flanking a 1-inch tweeter, this speaker is engineered to produce a detailed and expansive soundstage that brings every whisper and explosion to life.

The Polk Audio T30: Accessible Quality for the Masses

The Polk Audio T30, on the other hand, is a more budget-friendly option that doesn't skimp on quality. It's designed for the everyday user who wants a significant audio upgrade from their TV speakers without breaking the bank. The T30 features a 1-inch silk dome tweeter coupled with two 5.25-inch composite drivers, delivering a warm and rich sound that Polk is known for. It's a speaker that offers a balance of performance and value, making it an excellent choice for first-time home theater enthusiasts.

Design and Build: Aesthetics Meets Engineering

The design of the Monolith THX-365C is unapologetically bold, with a no-nonsense, boxy look that screams 'serious equipment'. Its build quality is impeccable, with a dense, acoustically inert cabinet that prevents unwanted resonance. Weighing in at a hefty 30 pounds, it's clear that Monoprice has invested a lot in materials and design to ensure audio performance is uncompromised.

Polk Audio T30 Center Channel Speaker
Polk Audio T30 arrow (at

Meanwhile, the Polk Audio T30 takes a more conservative approach to design. It has a simpler, more traditional aesthetic that blends in easily with most home decor. The build, while sturdy, is lighter and more practical for those with limited space or who prefer a less obtrusive presence in their living room. However, this difference in build also translates to a contrast in sound solidity and presence.

Listening Experience: Dissecting the Sound

In listening tests, the Monolith THX-365C's prowess is immediately apparent. The speaker presents an authoritative bass response that grounds the audio experience, while the mids and highs are conveyed with meticulous detail. Dialogue is crisp and clear, making it easy to follow even the most nuanced conversation in a film. The overall sound is clean and dynamic, with a transparency that allows each layer of the soundtrack to shine.

The Polk Audio T30, while not as sonically powerful as the Monolith, offers a warm and pleasant listening experience. Dialogue is still clear and intelligible, but the T30's sound profile is slightly more colored, with a richness that some users may prefer for music listening. It excels most in mid-range frequencies, ensuring that vocals and musical instruments are delivered with a natural resonance that's both engaging and smooth.

When it comes to integration with other speakers in a home theater setup, the Monolith THX-365C is quite versatile. Its neutral sound signature ensures it pairs well with a wide range of satellite speakers and subwoofers, creating a cohesive auditory landscape. The Polk Audio T30 also performs admirably in this regard, though its unique tonal characteristics might require a bit more consideration to match with other Polk speakers for a seamless blend.

In conclusion, the choice between the Monoprice Monolith THX-365C and the Polk Audio T30 center channel speaker boils down to personal preference and requirements. The Monolith is for those seeking top-tier audio performance with THX certification, willing to invest in a premium product. The Polk T30, however, is an excellent entry-level option that offers a satisfying audio experience at a more accessible price point. Whichever you choose, both will elevate your home theater system and bring you closer to the cinematic experience you desire.

Check Current Prices:

Monoprice Monolith THX-365C Center Channel Speaker
Monoprice Monolith THX-365C Center Channel Speaker
Polk Audio T30 Center Channel Speaker
Polk Audio T30 Center Channel Speaker

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Disclaimer: the speaker data listed on this website are correct to the best of our knowledge, but we do not guarantee the accuracy of the data. Please double-check any measurements with the manufacturer before making a final purchasing decision.