--- product_id: 356016567 title: "Monolith THX Ultra Certified 2000 Watt Powered Subwoofer - 13-Inch, Massive Output, Low Distortion, for Studio and Home Theater Systems, Black Ash Finish" brand: "monoprice" price: "S$5577" currency: SGD in_stock: false reviews_count: 11 url: https://www.desertcart.sg/products/356016567-monolith-thx-ultra-certified-2000-watt-powered-subwoofer-13-inch store_origin: SG region: Singapore --- # THX Ultra for 3000 cu ft rooms 13-inch custom driver 2000W RMS powerhouse Monolith THX Ultra Certified 2000 Watt Powered Subwoofer - 13-Inch, Massive Output, Low Distortion, for Studio and Home Theater Systems, Black Ash Finish **Brand:** monoprice **Price:** S$5577 **Availability:** ❌ Out of Stock ## Summary > 🎬 Feel the ground shake, not just the sound! ## Quick Answers - **What is this?** Monolith THX Ultra Certified 2000 Watt Powered Subwoofer - 13-Inch, Massive Output, Low Distortion, for Studio and Home Theater Systems, Black Ash Finish by monoprice - **How much does it cost?** S$5577 with free shipping - **Is it available?** Currently out of stock - **Where can I buy it?** [www.desertcart.sg](https://www.desertcart.sg/products/356016567-monolith-thx-ultra-certified-2000-watt-powered-subwoofer-13-inch) ## Best For - monoprice enthusiasts ## Why This Product - Trusted monoprice brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - β€’ **Flexible Acoustic Tuning:** Triple port design with foam plugs lets you switch between sealed, semi-sealed, or ported modes for tailored bass. - β€’ **Unmatched Bass Authority:** 2000 watts RMS / 3800+ watts peak deliver seismic low frequencies that redefine your home theater experience. - β€’ **THX Ultra Certified Excellence:** Scientifically validated for distortion-free reference-level sound in large rooms up to 3,000 cubic feet. - β€’ **Precision Engineered 13" Woofer:** Custom hybrid pulp-fiberglass cone ensures ultra-low distortion and dynamic, accurate bass response. - β€’ **Robust Build Meets Sleek Design:** High-density fiberboard cabinet with massive internal bracing in a sophisticated Black Ash finish fits any modern setup. ## Overview The Monolith THX Ultra Certified 2000 Watt Powered Subwoofer features a custom 13-inch hybrid cone driver paired with a DSP-controlled 2000 watt RMS amplifier, delivering reference-level bass with minimal distortion. Designed for large home theaters up to 3,000 cubic feet, it offers flexible port tuning and a premium HDF cabinet, making it the ultimate choice for audiophiles craving cinematic bass impact and precision. ## Description The Monolith 13" THX Ultra Certified 2000 Watt Powered Subwoofer sets the standard for bass output, low distortion, and reference level bass. A newly designed 13" driver, coupled with a DSP controlled 2000 watt (RMS)/3800+ watt (peak) power amplifier, brings a new dimension in low frequency bass performance to any home theater system. Review: Need new windows now! - Okay, so I might have gone overkill when I bought this thing. No, I went way overkill! My little cottage in the country is only 1200 square feet and my living room only about 300 of that. When this thing arrived, I took one look at the size of the box and I thought, what in the world is this massive thing! It's BIG! Okay, fine. Let me just drag this monster in the house and I'll get her opened up and see what's up. NOPE! My lower back laughed right in my face when I attempted to wrap my arms around this dishwasher sized package, and all 200+ lbs reminded me of a future hernia that I never had... YET! So, i called in the cavalry. I called my best bud who lives a couple of properties down and he was nice enough to come down and slip a disc or two in his spine with me ( A true friend! ). Eventually, we got this behemoth into the living room and got it unboxed and wired up ( The hooking up and getting it rocking was super simple! ) and then proceeded to fire this bad boy up. Let me tell you something! When I say that this thing will shake the very foundation of your house and potentially rattle every window loose from its frame, I mean every word! This thing hits so low and loud that your neighborhood will think it's world war 3! Anywhooo.... long story short, buy this monster and revel in its power and glory. The slipped disc or two are worth it! Review: end-game sub for normal people - I upgraded from a competent sub, an SVS PB1000, which I have been happy with for several years. But it did not really prepare me for how much better a sub that is 3x the price would be. I am sure SVS also has excellent options at this price, and there are lively discussions on audio forums about which brand is better. I can't speak highly enough about SVS, but I went this way and couldn't be happier. I'm not a bass-nut, I prefer extension over mere loudness, but this sub offers both. I listen to movies at a volume that requires moderately raising my voice (but not shouting) to be heard, the room is small-medium (about 14 ft across and long because it sits over a garage). The sub is barely working at all and it absolutely shakes the couch at frequencies I can't hear but can feel. It has transformed movies and music. Impacts and bass sweeps are phenomenal. If you don't have a sub you are likely not aware of the extra octave down there that most speakers "double" (cheating by playing the lowest octave at the 2nd harmonic). No cheating here, just cavity-loosening goodness. The box is huge, I giggle every time I look at it. I paid the desertcart optional in-room delivery fee of $20, and two beefy guys humped the 200lb box up narrow stairs for me. The in-room delivery is transformational, I mean I was researching electric stair-climbing dollies and so forth. Let desertcart do it, highly recommended. I join with the majority opinion that I wish I had done this years ago. If you are contemplating a decent entry-level sub, but can stretch to about 3x that, I promise you you will not be disappointed. Edit - I should add that the price seems to fluctuate by almost 2x. This has a dramatic effect on value and you should shop accordingly. ## Features - THX Ultra Certified: THX engineers completed hundreds of different scientific tests to ensure the highest audio performance possible. The tests ensure the speaker can reach the high volumes necessary to achieve THX Reference Level, without creating audible distortion or artifacts. THX Ultra Certified products are designed for large rooms, up to 3,000 cubic feet in size, with a 10~12 foot viewing distance from the screen. - 13 Inch Woofer: The Monolith 13 Inch driver was developed from the ground up, with a design focus on achieving output, accuracy, dynamics, and linearity, while minimizing distortion. It is enclosed in a cabinet made from HDF material, with massive internal bracing, and outfitted with three ports that can use foam plugs to run the subwoofer in sealed, semi sealed, or ported mode, as you see fit. - 2000 Watt Amplifier: The 2000 watt (RMS) amplifier (3800+ watt peak) is built around a Texas Instruments 48 bit data path, with 28-bit filter coefficients, and DSP engine. Each amplifier's transfer function, power output limiting, and thermal protection are monitored to the millisecond and are customized for each individual driver. The high efficiency Class D amplifier modules are based on a proven topology that has been continuously refined over the past 8 years. The amplifier has vast reserves - THX Ultra Certified products bring the cinematic experience to large home theaters, up to 3,000 cubic feet in size, with a 10~12 foot viewing distance from the screen*. *Previously known as Select2. - 13 Inch Driver: Every part of this driver has been developed from the ground up and customized to deliver high output, low distortion, and accurate bass. Our unique hybrid cone combines long fiber pulp and fiberglass, taking advantage of the pulp's superior stiffness with the additional rigidity and lightweight properties of fiberglass, to deliver a driver of massive durability and excursion. The result is a cone that achieves optimal motion at all frequencies it is asked to produce and beyond. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B09DJ3XSHQ | | Additional Features | Bass Boost, Display, Lightweight | | Antenna Location | Home Theater | | Audio Driver Size | 13 inches | | Audio Driver Type | Dynamic Driver | | Audio Output Mode | Stereo , Surround | | Best Sellers Rank | #257,175 in Electronics ( See Top 100 in Electronics ) #447 in Home Audio Subwoofers | | Brand | Monoprice | | Built-In Media | Powered Subwoofer | | Color | Black | | Compatible Devices | Television, Projector, Desktop, Laptop | | Compatible with Vehicle Type | Car | | Connectivity Protocol | Wired | | Connectivity Technology | ['RCA', 'XLR', 'NO'] | | Control Method | Remote | | Controller Type | Corded Electric | | Customer Package Type | FFP | | Customer Reviews | 4.4 out of 5 stars 26 Reviews | | Enclosure Material | {'enclosure': 'High Density Fiberboard (HDF)', 'driver_component': 'Long fiber pulp/glass fiber'} | | Input Voltage | 110 volts | | Is Waterproof | FALSE | | Item Dimensions D x W x H | 29.1"D x 20.3"W x 23.8"H | | Item Weight | 100 pounds | | Manufacturer | Monoprice | | Model Name | 141496 | | Model Number | 141496 | | Mounting Type | Ground Mount | | Number Of Circuits | 1 | | Number of Audio Channels | 3 | | Number of Items | 1 | | Number of Power Levels | 1 | | Power Source | Corded Electric | | Speaker Maximum Output Power | 2000 watts | | Speaker Size | 13 inches | | Speaker Type | Subwoofer | | Specific Uses For Product | Home Theaters, Movies, Music, Gaming, Large Rooms | | Subwoofer Connectivity Technology | Wired | | Subwoofer Diameter | 13 inches | | UPC | 889028156957 | | Unit Count | 1 Count | | Warranty Description | 5 | | Warranty Type | Limited | | Water Resistance Level | Not Water Resistant | | Wireless Technology | No Wireless Communication Technology | | Woofer Diameter | 13 inches | ## Product Details - **Audio Output Mode:** Stereo, Surround - **Brand:** Monoprice - **Connectivity Technology:** ['RCA', 'XLR', 'NO'] - **Input Voltage:** 110 volts - **Speaker Maximum Output Power:** 2000 watts ## Images ![Monolith THX Ultra Certified 2000 Watt Powered Subwoofer - 13-Inch, Massive Output, Low Distortion, for Studio and Home Theater Systems, Black Ash Finish - Image 1](https://m.media-amazon.com/images/I/51aVvzOwi8L.jpg) ## Questions & Answers **Q: Is the input voltage 110v? I live in a country with 240V electricity, will I need a step-down transformer?** A: Thank you for contacting us. In regards to your inquiry, yes you can use a step-down transformer. **Q: Would i need to use the xlr for thx or can i use a splitter for the left and right inputs? Thanks** A: The subwoofer can receive inputs from both XLR and RCA connections. You can split either connection type. THX is a specification that the subwoofer meets. **Q: Why is there no shipping date when I go to check out? I would like to purchase but not until I at least have an estimated time of arrival.** A: Thank you for your question. Please reach out to Amazon customer service to assist with your inquiry. **Q: I question the overall size of this subwoofer. Amazon says 20"x20"x20", but the manufacturer states the subwoofer is 29.1" x 20.3" x 23.8"?** A: Amazon’s measurements are not correct. Definitely not 20x20x20. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Need new windows now! *by R***N on March 25, 2026* Okay, so I might have gone overkill when I bought this thing. No, I went way overkill! My little cottage in the country is only 1200 square feet and my living room only about 300 of that. When this thing arrived, I took one look at the size of the box and I thought, what in the world is this massive thing! It's BIG! Okay, fine. Let me just drag this monster in the house and I'll get her opened up and see what's up. NOPE! My lower back laughed right in my face when I attempted to wrap my arms around this dishwasher sized package, and all 200+ lbs reminded me of a future hernia that I never had... YET! So, i called in the cavalry. I called my best bud who lives a couple of properties down and he was nice enough to come down and slip a disc or two in his spine with me ( A true friend! ). Eventually, we got this behemoth into the living room and got it unboxed and wired up ( The hooking up and getting it rocking was super simple! ) and then proceeded to fire this bad boy up. Let me tell you something! When I say that this thing will shake the very foundation of your house and potentially rattle every window loose from its frame, I mean every word! This thing hits so low and loud that your neighborhood will think it's world war 3! Anywhooo.... long story short, buy this monster and revel in its power and glory. The slipped disc or two are worth it! ### ⭐⭐⭐⭐⭐ end-game sub for normal people *by J***Y on December 5, 2025* I upgraded from a competent sub, an SVS PB1000, which I have been happy with for several years. But it did not really prepare me for how much better a sub that is 3x the price would be. I am sure SVS also has excellent options at this price, and there are lively discussions on audio forums about which brand is better. I can't speak highly enough about SVS, but I went this way and couldn't be happier. I'm not a bass-nut, I prefer extension over mere loudness, but this sub offers both. I listen to movies at a volume that requires moderately raising my voice (but not shouting) to be heard, the room is small-medium (about 14 ft across and long because it sits over a garage). The sub is barely working at all and it absolutely shakes the couch at frequencies I can't hear but can feel. It has transformed movies and music. Impacts and bass sweeps are phenomenal. If you don't have a sub you are likely not aware of the extra octave down there that most speakers "double" (cheating by playing the lowest octave at the 2nd harmonic). No cheating here, just cavity-loosening goodness. The box is huge, I giggle every time I look at it. I paid the Amazon optional in-room delivery fee of $20, and two beefy guys humped the 200lb box up narrow stairs for me. The in-room delivery is transformational, I mean I was researching electric stair-climbing dollies and so forth. Let Amazon do it, highly recommended. I join with the majority opinion that I wish I had done this years ago. If you are contemplating a decent entry-level sub, but can stretch to about 3x that, I promise you you will not be disappointed. Edit - I should add that the price seems to fluctuate by almost 2x. This has a dramatic effect on value and you should shop accordingly. ### ⭐⭐⭐⭐⭐ Hits lower/deeper than SVS *by D***L on March 10, 2026* Amazing. This site overcharged me though. 1600 and I find them for 800. This hits lower than the SVS ## Frequently Bought Together - Monolith THX Ultra Certified 2000 Watt Powered Subwoofer - 13-Inch, Massive Output, Low Distortion, for Studio and Home Theater Systems, Black Ash Finish - FosPower Banana Plugs 12 Pairs / 24 pcs, Closed Screw 24K Gold Plated Speaker Plug Connectors for Speaker Wire, Wall Plate, Home Theater, Audio/Video Receiver, Amplifiers and Sound Systems - SVS SoundPath Subwoofer Isolation System, 4-Pack --- ## Why Shop on Desertcart? - πŸ›’ **Trusted by 1.3+ Million Shoppers** β€” Serving international shoppers since 2016 - 🌍 **Shop Globally** β€” Access 737+ million products across 21 categories - πŸ’° **No Hidden Fees** β€” All customs, duties, and taxes included in the price - πŸ”„ **15-Day Free Returns** β€” Hassle-free returns (30 days for PRO members) - πŸ”’ **Secure Payments** β€” Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** β€” Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.sg/products/356016567-monolith-thx-ultra-certified-2000-watt-powered-subwoofer-13-inch](https://www.desertcart.sg/products/356016567-monolith-thx-ultra-certified-2000-watt-powered-subwoofer-13-inch) --- *Product available on Desertcart Singapore* *Store origin: SG* *Last updated: 2026-09-29*