As you settle into your favorite chair, the opening notes of your favorite movie score fill the air. This is the magic of the Monoprice Monolith THX Ultra speaker system. It promises to turn your home theater into a true cinematic haven.
The Monolith line from Monoprice is known for its high-quality audio at affordable prices. The THX-certified Ultra series is no different. With the THX-465T ATMOS Enabled Tower Speaker, Monoprice has set a new standard for home audio.
Key Takeaways
- Monoprice Monolith THX Ultra speakers offer certified excellence in surround sound performance
- The THX-465T tower speaker is a new addition to the Monolith lineup, featuring ATMOS capabilities
- The speakers are designed for home theater enthusiasts seeking premium audio quality at competitive prices
- The Monolith line is known for its commitment to delivering high-performance audio solutions
- THX certification ensures the speakers meet stringent performance standards for home theater environments
Introduction to Monoprice’s Premium Audio Line
Monoprice is known for great value. Now, they have a premium audio line called Monolith. This series includes speakers, amplifiers, and subwoofers for those who love great sound.
The Evolution of Monolith Series
The Monolith series has changed a lot over time. Today, it uses the latest tech and designs. The Monolith line now has many products, like the THX-465T ATMOS Enabled Tower Speaker. This shows Monoprice’s dedication to top-notch audio.
THX Certification Significance
THX certification is a big deal in the Monolith series. It’s a well-known standard for top audio quality. This means Monoprice’s speakers and electronics meet high standards. So, users know they’re getting the best sound for their home theaters.
Market Positioning and Value Proposition
Monoprice sees the Monolith series as a great value for those who love sound. They offer THX-certified products at good prices. This way, Monoprice challenges the high-end audio market. They give people amazing sound and great value.

Design and Build Quality Overview
The Monoprice Monolith THX-465T speakers stand out with their design and build. They are big, measuring 55.3″ x 13.1″ x 16.7″ and weighing 55.7 pounds. Their sleek black ash vinyl finish and charcoal black grille make them look great in any room.
The speakers are built to last, with a cabinet made from five layers of high-density fiberboard (HDF) and internal braces. This makes them exceptionally rigid and acoustically inert. They deliver top-notch audio equipment reviews and speaker design. Their design is visually striking, perfect for build quality in professional theaters.
“The Monoprice Monolith THX-465T speakers are a true testament to the brand’s commitment to quality and performance.”

The Monolith THX-465T speakers show Monoprice’s focus on quality and performance. Their build quality is impressive. This quality supports their THX Ultra certification and their ability to offer an immersive audio experience in any home theater.
Unboxing and Initial Setup Experience
When you open the Monoprice Monolith THX Ultra speaker system, you’ll see big, sturdy boxes. These boxes keep the speakers safe. Inside, the speakers are wrapped in foam to keep them perfect.
The box also has many extras to help set up. You’ll find rubber feet, stainless steel spikes, and a pedestal base for the tower speakers. Putting the speakers together needs two people because they are very heavy.
Package Contents and Protection
- Large, heavy-duty cardboard boxes with foam padding for speaker protection
- Included accessories: rubber feet, stainless steel spikes, and pedestal base
Assembly Requirements
Setting up the Monolith THX Ultra speakers means attaching the base and feet. This job is best done with two people because the speakers are so heavy.
Placement Considerations
When placing these speaker setup units, think about the room size and sound quality. The Monolith THX Ultra series works best in big home theaters. It gives a full home theater systems experience.

“The Monolith THX Ultra speaker system arrives well-protected, with a complete set of accessories for easy setup.”
Technical Specifications and Features
The Monoprice Monolith THX Ultra speaker lineup is a hit among audiophiles and home theater fans. At its core is the THX-465T, a three-way design that shows Monoprice’s dedication to great sound.
The THX-465T has a strong setup with four 6.5-inch woofers, a 2-inch silk dome midrange, and a 1-inch silk dome tweeter. This design, along with a ported cabinet, offers a wide frequency range from 29Hz. It has a nominal impedance of 4 ohms and a sensitivity of 89dB, making it versatile for different amplifiers.
Also, the speaker has a special 2-way Dolby Atmos-compatible system on top. This feature makes it easy to add the immersive Atmos experience to the Monolith THX Ultra series. It boosts the surround sound quality.
| Specification | Value |
|---|---|
| Drivers | 4 x 6.5″ woofers, 2″ silk dome midrange, 1″ silk dome tweeter |
| Frequency Response | 29Hz – 20kHz |
| Nominal Impedance | 4 ohms |
| Sensitivity | 89dB |
| Atmos Integration | Dedicated 2-way Atmos driver system |
The Monoprice Monolith THX Ultra speaker series is a standout with its advanced tech and Dolby Atmos. It offers an outstanding audio equipment review experience for those who love speaker specifications and seek the best surround sound.

Speaker Construction and Components
The Monoprice Monolith THX Ultra speakers are built with top-notch engineering. Their cabinet is made of five-layer HDF (High-Density Fiberboard) with internal braces. This design makes the speakers rigid and controls resonance well.
Inside, the speakers have a special driver setup. The woofers use long-fiber pulp cones with NBR surrounds for smooth bass. The midrange and tweeter units have silk dome diaphragms and Neodymium magnets for clear highs.
The crossover network in these speakers is also impressive. It uses a Linkwitz-Riley design with 24dB per octave slopes at 550Hz and 1.9kHz. This ensures a smooth transition between drivers, improving soundstage and imaging.
The Dolby Atmos-enabled models, like the THX-365T Atmos mini-tower, have extra components. They include a dedicated 5.5-inch woofer and 0.6-inch silk dome tweeter. These are designed for height effects and immersive 3D audio.
| Component | Specification |
|---|---|
| Cabinet | Five-layer HDF with internal bracing |
| Woofer | Long-fiber pulp cone with NBR surround |
| Midrange | Silk dome with Neodymium magnet |
| Tweeter | Silk dome with Neodymium magnet |
| Crossover | Linkwitz-Riley, 24dB/octave at 550Hz and 1.9kHz |
| Atmos Section | 5.5-inch woofer and 0.6-inch silk dome tweeter, crossover at 3.8kHz |
The Monoprice Monolith THX Ultra speakers are a testament to careful design and engineering. They ensure that all audio components work together for an outstanding listening experience. This focus on detail is what sets the Monolith series apart, appealing to both audio equipment reviews enthusiasts and home theater fans.

Monoprice Monolith THX Ultra Speaker Review
The Monoprice Monolith THX Ultra speaker system is a true marvel in the world of high-performance audio. After a 70-hour break-in period, our review showed its exceptional audio performance. In a 5.2.4 setup in a 3,700 cubic feet room, the speakers impressed us with their frequency response and imaging.
Our team used REW software and a calibrated microphone for detailed measurements. The results were outstanding. The Monolith THX Ultra speakers showed a linear frequency response and smooth bass roll-off. They also had a consistent dispersion pattern, creating an immersive soundstage.
The Monolith THX-365T mini-tower speakers were a highlight. With up-firing concentric 2-way Atmos drivers, they blended well with the Monolith THX-365C center channel. This created a cohesive front stage, delivering an exceptional home theater experience.
| Monoprice Monolith THX Ultra Speaker Specifications | Value |
|---|---|
| Frequency Response | 70 Hz to 20 kHz |
| Rated Sensitivity | 89.5 dB at 2.83 V/1m |
| Impedance | 4 ohms |
| Drivers (THX-365T) | 6 (2 woofers, 2 mid-range, 2 tweeters) |
| Cabinet Material | High-density HDF |
| Price (as tested) | $2,900 |
The Monoprice Monolith THX Ultra speakers deliver an audiophile-grade performance. They work well in both stereo and home theater setups. Their seamless soundfield and 3D bubble effect make movies and music come alive. For those looking for a high-quality, THX-certified audio solution, the Monolith series is a top choice.
Audio Performance Analysis
The Monoprice Monolith THX Ultra Speaker’s audio performance is truly exceptional. Its frequency response shows a flat curve for both main and Dolby Atmos speakers. The main speakers go down to 29Hz without a port plug, or 45Hz with one.
These speakers are known for their soundstage and imaging. Reviewers love how instruments and vocals are placed with precision. This creates an immersive, cinematic experience. The wide soundstage makes you feel like you’re right in the action.
| Frequency Response Comparison | THX Mode Enabled | Extended Mode Enabled |
|---|---|---|
| Ported | 29Hz – 20kHz | 22Hz – 20kHz |
| Sealed | 45Hz – 20kHz | 35Hz – 20kHz |
The Monoprice Monolith THX Ultra Speaker stands out in the high-end audio market. Its soundstage analysis and frequency response are top-notch. It delivers a true cinematic experience, showing the engineering skill behind it.
Dolby Atmos Integration Capabilities
The Monoprice Monolith THX-465T speaker system is top-notch for Dolby Atmos. It takes your home theater to new levels. Each cabinet has built-in ATMOS speakers with a 5.5″ woofer and a 0.6″ coaxially mounted silk dome tweeter. The ATMOS section has its own binding posts for separate amplification.
Listening tests show the Monolith THX-465T shines with Dolby Atmos. The ATMOS speakers mix well with the main speakers. This creates a three-dimensional soundscape that pulls you into the action.
Watching movies or playing games at home is better with the Monoprice Monolith THX-465T. Its Dolby Atmos makes the sound feel real. You’ll feel like you’re right in the middle of the action.
The Monoprice Monolith THX-465T is a game-changer for home theaters. It offers amazing Dolby Atmos sound quality. It’s perfect for those who love great sound and immersive experiences.
Power Handling and Amplification Requirements
The Monoprice Monolith THX Ultra speakers are top-notch performers. But, they need the right power handling and amplification. With a 4-ohm impedance and 89dB sensitivity, they need a high-quality amp to shine.
Impedance Characteristics
The speakers’ 4-ohm impedance means they need a strong amplifier. This is more than 8-ohm speakers do. A weaker amp can lead to heat, clipping, or distortion. So, it’s key to use an amplifier that can handle the 4-ohm load well.
Recommended Amplifier Pairings
In our test, the Monolith THX Ultra speakers were paired with a Parasound Halo A21 amplifier. This 400-watt RMS into 4 ohms setup let the speakers show off their best. For the best sound, look for amplifiers with at least 200 watts RMS per channel into 4 ohms. More power means better dynamics and range.
| Amplifier | Power Output (4 ohms) | Compatibility |
|---|---|---|
| Parasound Halo A21 | 400W RMS | Excellent |
| Denon AVR-X6700H | 215W RMS | Good |
| Marantz SR6015 | 180W RMS | Adequate |
Choosing the right amplifier for the Monolith THX Ultra speakers unlocks their full sound. This ensures an engaging and immersive audio experience.
Room Integration and Acoustic Performance
The Monoprice Monolith THX Ultra speakers are made for easy room setup. Their design lets you place them in different spots, fitting various room shapes.
In a 3,700 cubic feet room, they sound great. Their design keeps bass from getting too loud, even near walls. But, use the foam plugs to adjust bass if in small rooms or near walls.
| Speaker Placement Considerations | Recommendations |
|---|---|
| Room Size | Larger rooms (3,700 cubic feet or more) allow for more flexibility in speaker placement without severe bass buildup |
| Proximity to Walls | Use the included foam port plugs to adjust bass response when speakers are placed close to walls |
| Acoustic Treatments | Room acoustics and sound absorption materials can further improve the overall sound quality |
The Monolith THX Ultra speakers are designed with room acoustics and speaker placement in mind. They fit many home theater and audio setups well. With the right setup, they offer a rich and immersive sound.
Value Proposition and Market Comparison
The Monoprice Monolith THX-465T speakers are a great deal in the budget audiophile gear market. They have THX certification and Dolby Atmos, giving a top-notch surround sound. Compared to other speakers at the same price, Monoprice offers more for less.
Price-to-Performance Analysis
The Monoprice Monolith Audition B5 bookshelf speakers are a steal at $249 per pair. They go down to 65Hz, beating more expensive speakers. For example, the Polk Reserve R200 Anniversary Edition costs $1,299 per pair.
The SVS Prime Bookshelf Speaker is $699, and the Bowers & Wilkins 606 S2 are $999 per pair. The Polk Monitor XT20 is $299 per pair, but they don’t go as low as the Monoprice.
| Speaker Model | Price (per pair) | Low Frequency Cut-off |
|---|---|---|
| Monoprice Monolith Audition B5 | $249 | 65Hz |
| Polk Reserve R200 Anniversary Edition | $1,299 | N/A |
| Polk Monitor XT20 | $299 | N/A |
| SVS Prime Bookshelf Speaker | $699 | N/A |
| Bowers & Wilkins 606 S2 | $999 | N/A |
Competitive Alternatives
Monoprice Monolith THX-465T speakers are a great value, but there are other budget audiophile gear options. KEF, SVS, and Emotiva offer similar or better performance, but at a higher cost. The Monoprice speakers stand out with their THX certification and Dolby Atmos.
Long-term Performance and Durability
High-performance audio equipment needs speakers that last. The Monoprice Monolith THX Ultra speakers are built to last. They have a strong build and top-notch parts, promising speaker durability and long-term performance.
Premium materials like silk dome tweeters and long fiber pulp woofers show they’re made to last. The THX certification means they meet high standards for sound quality. This ensures they keep performing well over time.
Even without long-term test data, the Monoprice Monolith THX Ultra speakers look promising. Their design and build suggest they’ll offer reliable sound for years. They’re a great choice for those who value speaker durability and long-term performance.
| Key Specifications | Details |
|---|---|
| Frequency Response | 70 Hz to 20 kHz |
| Sensitivity | 89.5 dB at 2.83 V/1m |
| Atmos Driver Range | 120 Hz to 20 kHz |
| Impedance | 4 ohms |
| Crossover Design | 24 dB (3rd order) Linkwitz-Riley at 550 Hz and 2.1 kHz |
| Midrange and Tweeters | 2″ silk-dome midrange, 1″ silk dome tweeters |
The Monoprice Monolith THX Ultra speakers aim to deliver consistent sound. They’re designed to keep their quality over time. This makes them a solid choice for those seeking speaker durability and long-term performance.
“The Monoprice Monolith speakers exhibit a linear frequency response and low distortion, meeting THX certifications. They are considered stunning 2-channel speakers with a 3-way design.”
Conclusion
The Monoprice Monolith THX Ultra Speaker Review highlights Monoprice’s dedication to quality audio at good prices. These THX-certified towers impress with their sound quality. They also offer Dolby Atmos, making them great for home theater fans and audiophiles.
The Monolith speakers deliver a captivating listening experience. They have a clear soundstage, accurate imaging, and strong yet controlled bass. Their THX certification and Dolby Atmos integration make them a top choice in home audio.
If you’re looking for a premium speaker system without spending a lot, the Monoprice Monolith THX Ultra Speakers are a great choice. They perform as well as more expensive speakers, making them ideal for those who want quality without the high cost. The Monoprice Monolith THX Ultra Speakers show Monoprice’s commitment to amazing audio quality at a price everyone can afford.
FAQ
What are the key features of the Monoprice Monolith THX-465T ATMOS Enabled Tower Speakers?
The Monoprice Monolith THX-465T speakers are certified THX Ultra and compatible with Dolby Atmos. They have a three-way design with four 6.5″ woofers and a 2″ silk dome midrange. A 1″ silk dome tweeter is also included. The speakers have a ported cabinet and a sensitivity of 89dB, with a frequency response down to 29Hz.
What is the construction and build quality of these speakers?
The speakers’ cabinet is made from five layers of HDF with internal braces for stability. They feature long fiber pulp cone woofers and silk dome drivers with Neodymium magnets. The crossover is designed with a Linkwitz-Riley configuration. This construction promises durability over time.
How do the Monolith THX-465T speakers perform in terms of audio quality?
The speakers deliver an excellent frequency response, with the main speakers extending down to 29Hz. The soundstage and imaging are outstanding, with precise instrument and vocal placement. Dolby Atmos integration enhances immersive audio content performance.
What are the power handling and amplification requirements for the THX-465T speakers?
The speakers have a nominal impedance of 4 ohms and 89dB sensitivity. They benefit from high-quality amplification, like the Parasound Halo A21 amp. This amp delivers 400 watts RMS into 4 ohms, helping the speakers reach their full performance. While efficient, they may need a powerful amplifier for the best sound.
How do the Monolith THX-465T speakers compare to other options in the same price range?
The Monolith THX-465T offers great value with its THX certification and Dolby Atmos capabilities. Compared to similar priced speakers, it stands out. Brands like KEF, SVS, or Emotiva may offer alternatives, but Monoprice speakers are often more affordable.


