it is only $779+free shipping on the manufacturer's website. Why $1090 on Amazon?

It varies wildly due to demand and Amazon pricing algorithm, use camel to see price history, I got it for under $650 here

can use 220v voltage ?

Thank you for your inquiry. As long as there is a step down voltage transformer it should work.

Os it normal for the Woofer to be making a "morse code" type hum?

Thank you for contacting us. In regards to your inquiry, the humming sound only happens if there are electronic devices near the subwoofer.

Thank you for contacting us. Regarding your inquiry, this is only for one subwoofer.

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Fully operational. Shipping worldwide, on schedule.Customs & duties included in the price

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Monolith M-12 V2 12-Inch THX Certified Ultra 500 Watt Powered Subwoofer - Low Distortion, High Power Output, Vented HDF Cabinet, RCA and XLR Inputs, for Home Theater Systems, Black Ash Finish

Monolith M-12 V2 12-Inch THX Certified Ultra 500 Watt Powered Subwoofer - Low Distortion, High Power Output, Vented HDF Cabinet, RCA and XLR Inputs, for Home Theater Systems, Black Ash Finish

Product ID: 393709624

Details

Audio Output Mode
Stereo
Brand
Monoprice
Connectivity Technology
RCA XLR
Mounting Type
Ground Mount
Speaker Maximum Output Power
500 Watts

⚡500W Class D amplifier

🔊12-inch precision woofer

🛠️HDF braced cabinet

Description

🎬 Feel the cinema-grade bass that your home theater deserves!

SLEEK MODERN DESIGN - Rounded edges and inset subwoofer create a refined look that fits upscale home theaters.
MASSIVE 500 W AMPLIFIER - Texas Instruments DSP-driven Class D amp with real-time monitoring for flawless power delivery.
ROCK SOLID HDF CABINET - High-density fiberboard with internal bracing eliminates resonance for pure, uncolored bass.
PRECISION 12 INCH WOOFER - Custom-designed driver ensures deep, accurate bass with minimal distortion—feel every nuance.
THX ULTRA CERTIFIED POWERHOUSE - Engineered to deliver distortion-free bass at cinema-level volumes for rooms up to 3,000 cu ft.

The Monolith M-12 V2 is a THX Certified Ultra 12-inch powered subwoofer delivering 500 watts RMS of distortion-free bass. Built with a custom woofer, a high-efficiency Class D amplifier featuring advanced DSP, and a sonically inert HDF cabinet with internal bracing, it’s engineered for large rooms up to 3,000 cubic feet. Its sleek black ash finish and rounded edges make it a stylish yet powerful addition to any premium home theater setup.

Specifications

ASIN	B09LSSG9LP
Additional Features	Bass Boost, Display
Audio Driver Size	12 Inches
Audio Driver Type	Dynamic Driver
Audio Output Mode	Stereo
Best Sellers Rank	#325,998 in Electronics ( See Top 100 in Electronics ) #500 in Home Audio Subwoofers
Brand	Monoprice
Built-In Media	Powered Subwoofer
Color	Black
Compatible Devices	Laptop, Desktop, Television, Home Theater
Compatible with Vehicle Type	Car
Connectivity Protocol	XLR
Connectivity Technology	RCA , XLR
Control Method	Touch
Controller Type	Corded Electric
Customer Reviews	3.9 out of 5 stars 15 Reviews
Enclosure Material	HDF (High Density Fiberboard)
Is Waterproof	FALSE
Item Dimensions D x W x H	16.7"D x 24.8"W x 22.8"H
MP3 player	No
Manufacturer	Monoprice
Material	HDF (High Density Fiberboard)
Model Name	142847
Model Number	142847
Mounting Type	Ground Mount
Number Of Circuits	1
Number of Audio Channels	2.0
Number of Items	1
Power Source	Corded Electric
Processor Count	1
Series Number	142847
Signal-to-Noise Ratio	90 dB
Speaker Maximum Output Power	500 Watts
Speaker Size	12 Inches
Speaker Type	Subwoofer
Specific Uses For Product	Home Theatre
Subwoofer Connectivity Technology	Wired
Subwoofer Diameter	12 Inches
UPC	889028170403
Unit Count	1.0 Count
Warranty Description	5
Warranty Type	Limited
Water Resistance Level	Not Water Resistant
Wireless Technology	No Wireless Communication Technology
Woofer Diameter	12 Inches

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