---
product_id: 53490735
title: "IMG Stage Line SAM-300D Digital Active Subwoofer Module 420W"
brand: "monacor"
price: "AR$1306845"
currency: ARS
in_stock: true
reviews_count: 8
url: https://www.desertcart.com.ar/products/53490735-img-stage-line-sam-300d-digital-active-subwoofer-module-420w
store_origin: AR
region: Argentina
---

# Energy Efficient Lightweight Design 420W Power Output IMG Stage Line SAM-300D Digital Active Subwoofer Module 420W

**Brand:** monacor
**Price:** AR$1306845
**Availability:** ✅ In Stock

## Summary

> 🎶 Feel the Beat, Own the Sound!

## Quick Answers

- **What is this?** IMG Stage Line SAM-300D Digital Active Subwoofer Module 420W by monacor
- **How much does it cost?** AR$1306845 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.com.ar](https://www.desertcart.com.ar/products/53490735-img-stage-line-sam-300d-digital-active-subwoofer-module-420w)

## Best For

- monacor enthusiasts

## Why This Product

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

## Key Features

- • **Sleek & Portable:** Lightweight design makes it easy to integrate into any self-built subwoofer system.
- • **Unleash the Bass:** Experience powerful bass reproduction that transforms your audio experience.
- • **DIY Audio Revolution:** Perfect for audiophiles looking to create their own custom subwoofer systems.
- • **Cutting-Edge Technology:** Utilizes state-of-the-art digital D class technology for superior sound clarity.
- • **Eco-Friendly Performance:** Enjoy high power efficiency for an energy-saving operation without compromising on sound quality.

## Overview

The IMG Stage Line SAM-300D Digital Active Subwoofer Module delivers an impressive 420W of power, designed for high efficiency and lightweight portability, making it the ideal choice for DIY audio enthusiasts seeking to elevate their sound systems with cutting-edge digital technology.

## Description

From the manufacturer SAM-300D Active Bass Subwoofer Digital Amplifier Module 300w, For Installation in Speaker Cabinets Whether you are looking for amplifiers, ceiling and wall speakers or players: together, we provide the right PA technology for your requirements. Here at Monacor, we understand sound reinforcement in a very comprehensive sense. We therefore offer our customers a diverse range of products for all of their sound and lighting needs. Whether you want to bring sound to one person or thousands: Monacor has the right solution for you. Powerful Bass Sound for PA Disco DJ Home Cinema HiFi Bass Speaker systems SAM-300D amplifier module is designed for installation into a subwoofer speaker cabinet which is used to complement existing speaker systems with low frequencies when a convincing bass reproduction is required. The module is provided with a low-pass filter with adjustable cut-off frequency (40–200Hz) and a control to correct the phase in combination with other speakers. The amplifier has a limiter to protect the speaker. High-performance active module in class D technology Variable low-pass filter: 40-200 Hz (18 dB) Line input, par. line output Integrated bass boost of approx. 3 dB at 40 H High-level inputs for parallel connection to the speaker cables High power reserves Impressive Component for a Perfect Bass Speaker Active Subwoofer Module for the Digital Age SAM-300D by MONACOR is a digital active subwoofer module provides a powerful bass boost of approx. 3 dB at 40 Hz in self-built subwoofer systems. Impressive sound and workmanship The module is provided with a low-pass filter with adjustable cut-off frequency and ability to correct the phase in combination with other speakers. The lightweight design ensures a low total weight without compromising on sound quality. Energy Efficient SAM- 300D powers up via a switch-mode power supply giving it extra high efficiency at a low weight. Instead of connecting the module to signal sources, it is possible to connect it directly to the speaker outputs of a power amplifier. Can be placed anywhere in the room SAM-300D has a continuously adjustable phase control 0-180° for perfectly matching it to the main speakers. High-level inputs allow for parallel connection to the speaker cables. Specification

Review: Some Thoughts (KEF PSW2010 owners read this. A totally worthwhile upgrade or fix) - Update (09/10/2020). Added another star. Having tested the water with one unit, I purchased another Duff Kef unit (£40) and another IMG sub amp. I have stereo subs. Paired with full range three way speakers it all sounds like overkill but it isn't. Fantastic sound stage, coherent sound that goes lowwwwww (but not noisily so). I have re-discovered music (CD and high bit rate Spotify). Astonishingly brilliant. Money well spent Update (19/7/2020). Mea Culpa!! I thought the first unit had failed under light use. It was in fact a speaker wire coming loose. My negligence for sure but it is worth praising desertcart and the supplier for the speed they sent out the replacement. This was FOC on the basis that I returned the "faulty" unit within the month. A great no quibble response that is simply great customer service. Update (15/06/2020).This is a good unit. Just ordered a second for my other PSW2010. Bought to replace the original plate amp driving the KEF "Eggs" sub woofer. The KEF amp is well documented for a serious design flaw that cooked the electronics over time and I tried and failed to fix it. KEF sold loads of these and the surround speakers are also very good being cast aluminium clad and using a dual concentric speaker. All of which leading to a very competent and surprisingly wide range speaker which is small and musical but robust with high SPL's if you really want that. Plenty of this kit on e-bay at cheap prices if you fancy an interesting project. After a few hours of listening (and comparing with a factory standard PSW2010) here are some thoughts. 1) Appears to have a tighter control on the sound 2) Class D amp runs very cool indeed. 3) Smaller plate size than KEF unit but I have decided to live with this to ensure there is a good airflow around the electronics. (See pic of the "first fix"). The KEF plastic amp enclosure seems to have a decent rigidity which doesn't "bleed" enclosure vibrations and of course protects the amp electronics from a lot of kinetic energy 4) Alas line-in gain range is a bit low IMO. ***UPDATE. Using a phono splitter (desertcartBasics 2-Male to 1-Female RCA Y-Adapter - 30.5 cm is great value at an incredible £5.40 for ten of them - nicely made) lifts the amount of gain to something workable. 5) 4 stars for slightly shoddy circuit board construction that could develop dry jointing after some hours of serious use. This sub is used with an oldish Sony 5.1 receiver feeding KEF eggs and in an oldish but goodish Audiolab 8000 Pre and power amp/Mission 754F tower speaker set up, bi-amped config (nominally 100 W per ch). I really love the combo for its musicality, instrument detail, command and oomph. Music rather than home theatre is the order of the day where the Missions are very good but the sub (cut off at 40 to 60 Hz) provides a subtle but effective contribution to the overall range of the system. (For immediate WOW, listen to Martyn Bennet's "Grit",or any Metronomy, Afro Celt, Kraftwerk, Portishead or Prodigy). Lifting the sub amp frequency cut off to 120Hz results in a sloppy, mushy stand off with the Missions. I have tried to ensure that no system components are having to work hard and conservative settings on the sub bear this out - quality over quantity in spades. If you have the space and can clear it with your spouse, two subs are so much better than one especially when playing modern synth/sampler music that goes deep and has been properly engineered for low frequency on left and right channels. A surprising revelation. Have sold one faulty (£10) and one working (£40) PSW2010 on e-bay. Seems to be a bit of a demand.
Review: Superb Upgrade To Your Broken Subwoofer - The perfect fix for any Kef PSW or Kube subwoofer , sounds amazing even better then the original KEF module and runs ultra cool ! Great Module 5 Stars !!

## Features

- Active subwoofer modules for the digital age
- Powerful bass reproduction in self-built subwoofer systems
- High power efficiency and provide an energy-saving operation
- Lightweight design models
- State-of-the-art technology in the digital d class

## Images

![IMG Stage Line SAM-300D Digital Active Subwoofer Module 420W - Image 1](https://m.media-amazon.com/images/I/514-VxvHDNL.jpg)
![IMG Stage Line SAM-300D Digital Active Subwoofer Module 420W - Image 2](https://m.media-amazon.com/images/I/61z83VYiNrL.jpg)
![IMG Stage Line SAM-300D Digital Active Subwoofer Module 420W - Image 3](https://m.media-amazon.com/images/I/61NeH92ZUbL.jpg)
![IMG Stage Line SAM-300D Digital Active Subwoofer Module 420W - Image 4](https://m.media-amazon.com/images/I/21S8cC3eNvL.jpg)

## Questions & Answers

**Q: Does it come with a power cord? If not what type does it use?**
A: Mine came with a power cord. It is a standard IEC C13 power cord.

**Q: Is the bass boost of 3db at 40hz avoidable?**
A: It depends a lot on the speaker you are using it with and if it is a mono sub, where it is sited in the room. At that end of the spectrum 3dB is hardly noticable. As a sub driver mine works really well in a sealed box with a 15" Celestion, and brings the system alive below 100hz. I use the hi power inputs and the bass is excellent.

**Q: What is the ohms**
A: 4 to 8 ohms

**Q: i have a single channel dedicated sub output with my mixer will it work**
A: Yes. You can plug a single line level (RCA plug) subwoofer line output into the amplifier. This is how I have it set up, it works fine.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Some Thoughts (KEF PSW2010 owners read this. A totally worthwhile upgrade or fix)
*by S***T on 4 May 2020*

Update (09/10/2020). Added another star. Having tested the water with one unit, I purchased another Duff Kef unit (£40) and another IMG sub amp. I have stereo subs. Paired with full range three way speakers it all sounds like overkill but it isn't. Fantastic sound stage, coherent sound that goes lowwwwww (but not noisily so). I have re-discovered music (CD and high bit rate Spotify). Astonishingly brilliant. Money well spent Update (19/7/2020). Mea Culpa!! I thought the first unit had failed under light use. It was in fact a speaker wire coming loose. My negligence for sure but it is worth praising Amazon and the supplier for the speed they sent out the replacement. This was FOC on the basis that I returned the "faulty" unit within the month. A great no quibble response that is simply great customer service. Update (15/06/2020).This is a good unit. Just ordered a second for my other PSW2010. Bought to replace the original plate amp driving the KEF "Eggs" sub woofer. The KEF amp is well documented for a serious design flaw that cooked the electronics over time and I tried and failed to fix it. KEF sold loads of these and the surround speakers are also very good being cast aluminium clad and using a dual concentric speaker. All of which leading to a very competent and surprisingly wide range speaker which is small and musical but robust with high SPL's if you really want that. Plenty of this kit on e-bay at cheap prices if you fancy an interesting project. After a few hours of listening (and comparing with a factory standard PSW2010) here are some thoughts. 1) Appears to have a tighter control on the sound 2) Class D amp runs very cool indeed. 3) Smaller plate size than KEF unit but I have decided to live with this to ensure there is a good airflow around the electronics. (See pic of the "first fix"). The KEF plastic amp enclosure seems to have a decent rigidity which doesn't "bleed" enclosure vibrations and of course protects the amp electronics from a lot of kinetic energy 4) Alas line-in gain range is a bit low IMO. ***UPDATE. Using a phono splitter (AmazonBasics 2-Male to 1-Female RCA Y-Adapter - 30.5 cm is great value at an incredible £5.40 for ten of them - nicely made) lifts the amount of gain to something workable. 5) 4 stars for slightly shoddy circuit board construction that could develop dry jointing after some hours of serious use. This sub is used with an oldish Sony 5.1 receiver feeding KEF eggs and in an oldish but goodish Audiolab 8000 Pre and power amp/Mission 754F tower speaker set up, bi-amped config (nominally 100 W per ch). I really love the combo for its musicality, instrument detail, command and oomph. Music rather than home theatre is the order of the day where the Missions are very good but the sub (cut off at 40 to 60 Hz) provides a subtle but effective contribution to the overall range of the system. (For immediate WOW, listen to Martyn Bennet's "Grit",or any Metronomy, Afro Celt, Kraftwerk, Portishead or Prodigy). Lifting the sub amp frequency cut off to 120Hz results in a sloppy, mushy stand off with the Missions. I have tried to ensure that no system components are having to work hard and conservative settings on the sub bear this out - quality over quantity in spades. If you have the space and can clear it with your spouse, two subs are so much better than one especially when playing modern synth/sampler music that goes deep and has been properly engineered for low frequency on left and right channels. A surprising revelation. Have sold one faulty (£10) and one working (£40) PSW2010 on e-bay. Seems to be a bit of a demand.

### ⭐⭐⭐⭐⭐ Superb Upgrade To Your Broken Subwoofer
*by A***S on 17 May 2021*

The perfect fix for any Kef PSW or Kube subwoofer , sounds amazing even better then the original KEF module and runs ultra cool ! Great Module 5 Stars !!

### ⭐⭐⭐⭐ Used to fix old sub
*by L***N on 31 December 2021*

I bought this to replace the amp in my broken 10" mordaunt short sub.Seems to be working okay, doesn't quite have the same grunt as the old one but well worth it to have it working again.Was easy to install.

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*Product available on Desertcart Argentina*
*Store origin: AR*
*Last updated: 2026-03-11*