---
product_id: 416631942
title: "Amplifier (400W 4 Channels)"
brand: "soundigital"
price: "₨60377"
currency: LKR
in_stock: true
reviews_count: 13
url: https://www.desertcart.lk/products/416631942-amplifier-400w-4-channels
store_origin: LK
region: Sri Lanka
---

# 400W peak power output Compact 4.33x4.33x1.97 in size 4 versatile audio channels Amplifier (400W 4 Channels)

**Brand:** soundigital
**Price:** ₨60377
**Availability:** ✅ In Stock

## Summary

> 🔊 Elevate your drive with powerhouse sound in a pocket-sized package!

## Quick Answers

- **What is this?** Amplifier (400W 4 Channels) by soundigital
- **How much does it cost?** ₨60377 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.lk](https://www.desertcart.lk/products/416631942-amplifier-400w-4-channels)

## Best For

- soundigital enthusiasts

## Why This Product

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

## Key Features

- • **Space-Savvy Design:** Ultra-compact footprint fits discreetly behind your dash—maximize power without sacrificing cabin space.
- • **Efficient & Reliable:** Operates between 8-16V with 82% efficiency and a recommended 20A fuse, balancing power and safety seamlessly.
- • **Power that Packs a Punch:** Delivers a robust 400W total output to energize your entire sound system with crystal-clear clarity.
- • **Precision Audio Engineering:** Class D amplifier technology ensures clean, distortion-free sound with an impressive 88dB SNR and 0.1% THD.
- • **Four Channels, Infinite Possibilities:** Supports multiple speaker setups for a fully customizable audio experience tailored to your ride.

## Overview

The SounDigital 400.4 EVO is a compact, high-efficiency Class D car amplifier delivering 400 watts across four channels. Engineered for clean, distortion-free audio with advanced crossover options and a small footprint, it’s perfect for millennial professionals seeking premium sound without compromising space or style.

## Description

SounDigital Brazilian Amplifiers In absolute preview NEW EVO LINE The brand new EVO line is the latest born from SounDigital the world's number one manufacturer of Class D Amplifiers. Extremely small size, small footprint and great power!! Main Specifications 400.4 EVO Amplifier Type 4 Channel Class D Output Power 2Ω 12.6V 4x100 Watts RMS - 14.4V: 4x125 Watts RMS 4x66 Watts RMS on 4Ω 4x74 Watts RMS on 4Ω 14.4V 2x200 watt Rms 4 Ω Bridge Crossover HPF 80Hz 12dB /8ª Crossover LPF 80Hz 12dB /8ª Dimensions 109 mm x 113 x 50 mm Frequency Response 10 Hz - 20000 Hz Total Efficiency: 82% Damping Factor: 200 SNR: 88dB THD + + + N (10% Rated Power): 0.1% Operating voltage: 8V to 16V Max consumption: 39A Recommended fuse (Music): 20A Min consumption: 0.5A

Review: Sound Digital, Game changer! - 9-17-25 I give this very tiny lil amp 5 stars so far!! I actually am using it passed thru my Fosgate RX500D amp....It is clean no humming no no hissing in the 2 RF P3 speakers I have in my back dash. I totally played myself by purchasing the Boss CE102 to drive the P3s which was an absolute disaster...that amp is so terrible it pushed interference thru my P3s and my 12" Kicker sub...I thought it was my grounds, RCAs, etc until I started process of elimination. SD EVO is clean and crisp and very small so concealing it is very easy...my only gripe is the speaker terminals are right next to the power terminals but they obviously did some expert engineering...again the lil thing sounds clean.
Review: Small and powerful - This little lamp kicks butt! My aftermarket head unit wasn't quite cutting it for me, I found myself driving around with it cranked to the max all the time. It was rated it 60 watts per channel mute I'm sure that's Max, RMS was probably more like 15 watts. This amp was small enough for me to install it in the dash behind the head unit so wiring it to the factory harness was super simple. I'm using it to run four Skar Audio 6x8 4 ohm speakers in my Ford f150 so, according to the specs, it should be producing 66 wats per channel. I found it to be a little to powerful so I turned the gain down a bit to give me more precise volume control and I still don't need to turn it up to more than 1/2 to 3/4 volume to make my ears hurt. I am very pleased with this purchase as it does everything I needed it to do and then some. Great value for the money.

## Features

- 400W total power output
- Four channels for versatile speaker configurations
- SounDigital car audio amplifier
- Compact and durable design
- Supports various speaker configurations

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B09BZ8PNVR |
| Best Sellers Rank | #124,681 in Electronics ( See Top 100 in Electronics ) #286 in Car Multichannel Amplifiers |
| Brand | SounDigital |
| Date First Available | October 15, 2021 |
| Item Weight | 1.21 pounds |
| Item dimensions L x W x H | 4.33 x 4.33 x 1.97 inches |
| Item model number | 400.4 EVO 4.0 |
| Manufacturer | SounDigital |
| Material | Electronic Components |
| Maximum Supply Voltage | 16 Volts (DC) |
| Minimum Supply Voltage | 8 Volts |
| Mounting Type | Speaker |
| Number of Channels | 4 |
| Output Power | 400 Watts |
| Package Type Name | Box |
| Product Dimensions | 4.33 x 4.33 x 1.97 inches |
| Specification Met | FCC |
| Supply Current | 39 Amps |
| Voltage | 8 Volts (DC) |

## Product Details

- **Item dimensions L x W x H:** 4.33 x 4.33 x 1.97 inches
- **Manufacturer:** SounDigital
- **Maximum Supply Voltage:** 16 Volts (DC)
- **Minimum Supply Voltage:** 8 Volts
- **Voltage:** 8 Volts (DC)

## Images

![Amplifier (400W 4 Channels) - Image 1](https://m.media-amazon.com/images/I/61zT2sWsEsL.jpg)
![Amplifier (400W 4 Channels) - Image 2](https://m.media-amazon.com/images/I/61fAmkOGACL.jpg)
![Amplifier (400W 4 Channels) - Image 3](https://m.media-amazon.com/images/I/61gyXFIw4pL.jpg)
![Amplifier (400W 4 Channels) - Image 4](https://m.media-amazon.com/images/I/51hv3rrthnL.jpg)
![Amplifier (400W 4 Channels) - Image 5](https://m.media-amazon.com/images/I/51B28o3OO6L.jpg)

## Questions & Answers

**Q: Can i run 6 speakers to this that qre 4 ohm a piece?**
A: Yes, 2 speakers per channel

**Q: Can you run 2 channels mid and another channel for sub**
A: I wouldnt recommend that. Seperate amp for a sub, or bigger amp.

**Q: Can you say the rms ,ohm and operating voltage for this amp?**
A: sorry I don't know because the Amp didn't work as I got it and the company wouldn't make it right

## Customer Reviews

### ⭐⭐⭐⭐⭐ Sound Digital, Game changer!
*by P***L on September 18, 2025*

9-17-25 I give this very tiny lil amp 5 stars so far!! I actually am using it passed thru my Fosgate RX500D amp....It is clean no humming no no hissing in the 2 RF P3 speakers I have in my back dash. I totally played myself by purchasing the Boss CE102 to drive the P3s which was an absolute disaster...that amp is so terrible it pushed interference thru my P3s and my 12" Kicker sub...I thought it was my grounds, RCAs, etc until I started process of elimination. SD EVO is clean and crisp and very small so concealing it is very easy...my only gripe is the speaker terminals are right next to the power terminals but they obviously did some expert engineering...again the lil thing sounds clean.

### ⭐⭐⭐⭐⭐ Small and powerful
*by F***N on March 9, 2024*

This little lamp kicks butt! My aftermarket head unit wasn't quite cutting it for me, I found myself driving around with it cranked to the max all the time. It was rated it 60 watts per channel mute I'm sure that's Max, RMS was probably more like 15 watts. This amp was small enough for me to install it in the dash behind the head unit so wiring it to the factory harness was super simple. I'm using it to run four Skar Audio 6x8 4 ohm speakers in my Ford f150 so, according to the specs, it should be producing 66 wats per channel. I found it to be a little to powerful so I turned the gain down a bit to give me more precise volume control and I still don't need to turn it up to more than 1/2 to 3/4 volume to make my ears hurt. I am very pleased with this purchase as it does everything I needed it to do and then some. Great value for the money.

### ⭐⭐⭐⭐⭐ Great amp
*by L***E on December 13, 2025*

Powerful little amp. Fit in side harley toolbox on my softail. Powering two 6 1/2 coax with gain half way and on hpf.

## Frequently Bought Together

- SounDigital Amplifier (400W 4 Channels)
- DteeDck RCA Splitter 1 Female to 2 Male, 2 Pack - RCA Audio Video Cable Splitter Adapter, Dark Blue
- SounDigital - Car Full Range Amplifier 800 - 4 Channels 800 Watts RMS 4 Ohm - Compact Size - Professional Quality - 2025 Best Performance Award

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---

*Product available on Desertcart Sri Lanka*
*Store origin: LK*
*Last updated: 2026-02-27*