---
product_id: 254582125
title: "Skar Audio A U D I O Compact Full-Range Rms Mosfet 4 Channel Car Amplifier (SK-M4004D,400W)"
brand: "skar audio"
price: "309731CFA"
currency: XOF
in_stock: true
reviews_count: 5
category: "Skar Audio"
url: https://www.desertcart.sn/products/254582125-skar-audio-a-u-d-i-o-compact-full-range
store_origin: SN
region: Senegal
---

# 400W max power output Ultra compact 20x12x4 cm size Adjustable HPF/LPF crossover controls Skar Audio A U D I O Compact Full-Range Rms Mosfet 4 Channel Car Amplifier (SK-M4004D,400W)

**Brand:** skar audio
**Price:** 309731CFA
**Availability:** ✅ In Stock

## Summary

> 🚗 Amp up your drive with compact power and pro-level clarity!

## Quick Answers

- **What is this?** Skar Audio A U D I O Compact Full-Range Rms Mosfet 4 Channel Car Amplifier (SK-M4004D,400W) by skar audio
- **How much does it cost?** 309731CFA with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.sn](https://www.desertcart.sn/products/254582125-skar-audio-a-u-d-i-o-compact-full-range)

## Best For

- skar audio enthusiasts

## Why This Product

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

## Key Features

- • **Space-saving Design:** Ultra-compact chassis fits seamlessly in tight car interiors without compromising power.
- • **Reliable & Efficient:** High-speed MOSFET power supply and Class D design ensure stable, cool operation on every drive.
- • **Effortless Installation:** High-level inputs and adapter harness simplify setup even without RCA connections.
- • **Precision Sound Control:** Customizable crossover settings (HPF/Full/LPF) let you tailor audio to your exact taste.
- • **Power-packed Performance:** Delivers 140W RMS x4 channels at 2Ω for crystal-clear sound that fills your ride.

## Overview

The Skar Audio SK-M4004D is a compact yet powerful 4-channel Class D car amplifier delivering up to 400W total RMS power. Engineered with a high-speed MOSFET power supply and adjustable crossover controls, it offers versatile, high-fidelity sound in a space-saving design. Ideal for installations with limited space, it supports high-level inputs and includes an adapter harness for easy setup, making it a reliable choice for audiophiles seeking professional-grade audio performance on the go.

## Description

The skar audio SK-M4004D full range class d four channel amplifier is part of the new mini amplifier series product lineup from skar audio. The sk-m4004d was engineered to be compact, but provide the power and reliability expected out of larger amplifiers. Featuring a high speed mosfet power supply, and an efficient class d design, this amplifier is powerful, reliable, and extremely versatile. The sk-m4004d makes for a great amplifier in applications where space is limited but power cannot be sacrificed. In addition, this four channel amplifier features high level input connections for those installations that lack an RCA connection. In addition to the high level inputs, this amplifier also utilizes an adapter harness for the speaker outputs allowing for an easier installation.

Review: Good value, lots of power. make sure you mount this amp with a gap as the fan is located on the bottom. It worked a lot better for me once I gave it more room to breathe. It gets hot and will overheat if you do not do this
Review: Pleasantly surprised with this amp. This amp replaces my old 4 channel amp and mono sub amp. It is running my 6x9 front door speakers and 6.5 rear door speakers along with a 10” pioneer subwoofer. This amp is a bargain for what it’s capable of doing. The sound is nice and the build quality looks great. I would buy this amp again.

## Features

- Ultra Compact MOSFET Full-Range 4-Channel Class D Car Amplifier
- RMS Power at 2 Ohms: 140 Watts x 4 Channels (14.4v)
- RMS Power at 4Ohms: 100 Watts x 4 Channels (14.4v)
- Crossover Controls: HPF / Full-Range / LPF | Frequency Response: 10Hz - 40kHz

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B01EQX5ORK |
| Item model number | SK-M4004D |
| Manufacturer | Skar Audio |
| Product Dimensions | 20.07 x 11.79 x 4.19 cm; 1.7 kg |

## Product Details

- **Item dimensions L x W x H:** 20.1 x 11.8 x 4.2 centimeters
- **Manufacturer:** Skar Audio
- **Maximum supply voltage:** 14.4 Volts
- **Minimum supply voltage:** 14.4 Volts
- **Voltage:** 14.4 Volts

## Images

![Skar Audio A U D I O Compact Full-Range Rms Mosfet 4 Channel Car Amplifier (SK-M4004D,400W) - Image 1](https://m.media-amazon.com/images/I/61npvuKc0ML.jpg)
![Skar Audio A U D I O Compact Full-Range Rms Mosfet 4 Channel Car Amplifier (SK-M4004D,400W) - Image 2](https://m.media-amazon.com/images/I/5179+jkRbxL.jpg)
![Skar Audio A U D I O Compact Full-Range Rms Mosfet 4 Channel Car Amplifier (SK-M4004D,400W) - Image 3](https://m.media-amazon.com/images/I/61VBhOFwuNL.jpg)
![Skar Audio A U D I O Compact Full-Range Rms Mosfet 4 Channel Car Amplifier (SK-M4004D,400W) - Image 4](https://m.media-amazon.com/images/I/61Drb+xgS5L.jpg)
![Skar Audio A U D I O Compact Full-Range Rms Mosfet 4 Channel Car Amplifier (SK-M4004D,400W) - Image 5](https://m.media-amazon.com/images/I/81EOuSV-14L.jpg)

## Available Options

This product comes in different **Size** options.

## Questions & Answers

**Q: Can u run 8  speakers on this?**
A: Yes you can. Two speakers per channel in parallel but make sure that the impedence of each speaker is 4 ohms or more because the minimum impedence that this amp can work in a stable condition is 2 ohms. Also keep in mind that each speaker will get around 100-115 watts.

**Q: Can I use this amp to run my subs and tweets since it a four channel amp**
A: I wouldn't recommend it

**Q: I have ix 8 d2 sub, what amp should I get for it?**
A: You can run a Skar RP 350.1

**Q: Can i hook up tweeters, two front 90w rms and two 45w rms speakers to this?**
A: I have tweeters on mine with 2 6.5s running in HPF.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Review
*by M***C on 7 October 2023*

Good value, lots of power. make sure you mount this amp with a gap as the fan is located on the bottom. It worked a lot better for me once I gave it more room to breathe. It gets hot and will overheat if you do not do this

### ⭐⭐⭐⭐⭐ Review
*by J***K on 2 February 2026*

Pleasantly surprised with this amp. This amp replaces my old 4 channel amp and mono sub amp. It is running my 6x9 front door speakers and 6.5 rear door speakers along with a 10” pioneer subwoofer. This amp is a bargain for what it’s capable of doing. The sound is nice and the build quality looks great. I would buy this amp again.

### ⭐⭐⭐⭐⭐ Review
*by D***K on 14 October 2025*

This Skar Audio SK-M4004D amp is a beast in a small package — delivers crisp, distortion-free sound and plenty of power for all four channels. It runs cool, fits anywhere, and really wakes up your speakers. Perfect mix of size, strength, and quality. 💪

## Frequently Bought Together

- Skar Audio SK-M4004D Compact Full-Range Class D 4 Channel Car Amplifier, 400W
- Skar Audio 4 Gauge OFC Complete Amplifier Installation Wiring Kit, SKAR4ANL-OFC
- Skar Audio RP-1200.1D Monoblock Class D MOSFET Amplifier with Remote Subwoofer Level Control, 1200W

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*Product available on Desertcart Senegal*
*Store origin: SN*
*Last updated: 2026-02-21*