---
product_id: 133675847
title: "Monolith M12-S Sealed Powered Subwoofer - 12 Inch, 500 Watt, THX Certified"
brand: "monolith"
price: "8265 zł"
currency: PLN
in_stock: true
reviews_count: 1
url: https://www.desertcart.pl/products/133675847-monolith-m12-s-sealed-powered-subwoofer-12-inch-500-watt
store_origin: PL
region: Poland
---

# 500W RMS Class-D amplifier 12-inch precision driver THX Certified Select standard Monolith M12-S Sealed Powered Subwoofer - 12 Inch, 500 Watt, THX Certified

**Brand:** monolith
**Price:** 8265 zł
**Availability:** ✅ In Stock

## Summary

> 🎬 Feel every beat like you’re front row at the premiere.

## Quick Answers

- **What is this?** Monolith M12-S Sealed Powered Subwoofer - 12 Inch, 500 Watt, THX Certified by monolith
- **How much does it cost?** 8265 zł with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.pl](https://www.desertcart.pl/products/133675847-monolith-m12-s-sealed-powered-subwoofer-12-inch-500-watt)

## Best For

- monolith enthusiasts

## Why This Product

- Trusted monolith brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Cinema-Grade Bass Power:** Unleash deep, distortion-free bass down to sub-20Hz frequencies for immersive home theater impact.
- • **Sonically Inert Cabinet:** HDL material and strategic bracing eliminate resonance, letting pure bass dominate your space.
- • **Sleek, Functional Design:** Removable non-resonant grille maximizes airflow and aesthetics, fitting seamlessly into your modern setup.
- • **Precision Engineered Driver:** Custom 12-inch dynamic driver with advanced internal bracing delivers tight, accurate, and punchy low-end.
- • **High-Efficiency Amplification:** 500-watt Texas Instruments Class-D amp with real-time thermal and power monitoring ensures clean, reliable output.

## Overview

The Monolith M12-S is a THX Certified Select 12-inch sealed powered subwoofer delivering 500 watts of distortion-free bass. Engineered with a custom dynamic driver, high-density fiberboard cabinet, and a precision Class-D amplifier, it’s designed for medium-sized rooms up to 2,000 cubic feet. Perfect for audiophiles and home theater enthusiasts craving cinema-level low-frequency performance with tight, accurate bass response.

## Description

The Monolith THX Certified sealed subwoofer Series sets the standard for bass output, low distortion, and affordability. With chest thumping bass that plays down to Well under 20Hz, The Monolith subwoofer unleashes cinema level volume, with the ability to convey and articulate The subtle nuances of music.

Review: Best Sub for the money - Bought the 12 inch sealed Monolith about 4 months ago. She is a beast. Extremely solid construction. Super tight bass and digs deep. I also own the SVS SB-2000. Advantage to that one is it has a smaller footprint and is considerably lighter. Both are excellent Subs, The Monolith beats it out. Bass is cleaner. It's quality is superior. For the same money it's a no brainer get the Monolith. Will warn you though it is quite substantial, heavy. and large unit. Make sure you have the space for it.

## Features

- Thx Certified select: THX engineers completed hundreds of different Scientific tests to ensure the highest level of audio performance. The tests ensure the speaker can reach the high volumes necessary to achieve THX Reference level without creating audible distortion or artifacts. Thx Certified select products are for medium sized rooms, up to 2, 000 cubic feet in size, with a 10-12 foot viewing distance from the screen. Two subwoofers are needed to meet THX select certification
- 12in driver: the Monolith 12in driver was developed from the ground up with a design focus on achieving output, accuracy, dynamics, and linearity, while minimizing distortion. The driver is enclosed in a cabinet made from hdl material with massive internal bracing
- 500-Watt amplifier: the 500-watt RMS amplifier 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 4 years. The amplifier has vast Reserves of power for highly
- Cabinet and internal bracing: The cabinet is constructed of hdl (high density fiberboard), not MDF, resulting in a sonically inert cabinet. Internal bracing has been strategically placed to increase Overall strength and limit unwanted panel vibration that would cause discoloration and distortion. The strong cabinet and bracing Combine to ensure you hear massive amounts of bass, NOT cabinet resonance
- Removable grille: The grille is made from non-resonant MDF to provide rigidity, while the entire structure is offset from the cabinet to maximize air flow of the woofer and ports

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B07PW58WZR |
| Audio Driver Size | 12 Inches |
| Audio Driver Type | Dynamic Driver |
| Color | 12 Inch |
| Compatible Devices | Home Theater, Laptop, Projector |
| Control Method | Touch |
| Customer Reviews | 5.0 5.0 out of 5 stars (1) |
| Date First Available | March 19, 2019 |
| Global Trade Identification Number | 00889028103302 |
| Included Components | M12-S Sealed Powered Subwoofer |
| Is Waterproof | FALSE |
| Item Weight | 78.1 pounds |
| Item model number | 135142 |
| Manufacturer | Monoprice |
| Number of Items | 1 |
| Power Source | Corded Electric |
| Product Dimensions | 24.5 x 21 x 26 inches |
| Recommended Uses For Product | For Home Theater Systems, For Surround Sound Systems |
| Speaker Size | 12 Inches |
| Speaker Type | Subwoofer |
| Specific Uses For Product | Home Theater, Home Audio |
| Subwoofer Diameter | 12 Inches |
| Surround Sound Channel Configuration | 1.0 |
| UPC | 889028103302 |
| Warranty Type | Limited |
| Water Resistance Level | Not Water Resistant |
| Woofer Diameter | 12 Inches |

## Product Details

- **Audio Output Mode:** Surround
- **Brand:** Monolith
- **Model Name:** M12 S
- **Mounting Type:** Ground Mount
- **Speaker Maximum Output Power:** 500 Watts

## Images

![Monolith M12-S Sealed Powered Subwoofer - 12 Inch, 500 Watt, THX Certified - Image 1](https://m.media-amazon.com/images/I/613wsqZJivL.jpg)
![Monolith M12-S Sealed Powered Subwoofer - 12 Inch, 500 Watt, THX Certified - Image 2](https://m.media-amazon.com/images/I/61alCSRK7tL.jpg)
![Monolith M12-S Sealed Powered Subwoofer - 12 Inch, 500 Watt, THX Certified - Image 3](https://m.media-amazon.com/images/I/61mE41KzcVL.jpg)
![Monolith M12-S Sealed Powered Subwoofer - 12 Inch, 500 Watt, THX Certified - Image 4](https://m.media-amazon.com/images/I/71dDkoI0BSL.jpg)
![Monolith M12-S Sealed Powered Subwoofer - 12 Inch, 500 Watt, THX Certified - Image 5](https://m.media-amazon.com/images/I/81eEXPNoD5L.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Best Sub for the money
*by J***R on December 25, 2020*

Bought the 12 inch sealed Monolith about 4 months ago. She is a beast. Extremely solid construction. Super tight bass and digs deep. I also own the SVS SB-2000. Advantage to that one is it has a smaller footprint and is considerably lighter. Both are excellent Subs, The Monolith beats it out. Bass is cleaner. It's quality is superior. For the same money it's a no brainer get the Monolith. Will warn you though it is quite substantial, heavy. and large unit. Make sure you have the space for it.

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*Product available on Desertcart Poland*
*Store origin: PL*
*Last updated: 2026-01-27*