---
product_id: 348218449
title: "Kicker 47KEY2004 Car Audio Smart DSP 4 Channel Speaker Amplifier 40 Band EQ Amp"
brand: "kicker"
price: "NT$24579"
currency: TWD
in_stock: true
reviews_count: 5
category: "Kicker"
url: https://www.desertcart.tw/products/348218449-kicker-47key2004-car-audio-smart-dsp-4-channel-speaker-amplifier
store_origin: TW
region: Taiwan
---

# Auto mic calibration 200W total power (50x4) 40-band EQ precision Kicker 47KEY2004 Car Audio Smart DSP 4 Channel Speaker Amplifier 40 Band EQ Amp

**Brand:** kicker
**Price:** NT$24579
**Availability:** ✅ In Stock

## Summary

> 🎵 Elevate your drive with sound that’s smarter, sharper, and seriously next-level.

## Quick Answers

- **What is this?** Kicker 47KEY2004 Car Audio Smart DSP 4 Channel Speaker Amplifier 40 Band EQ Amp by kicker
- **How much does it cost?** NT$24579 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.tw](https://www.desertcart.tw/products/348218449-kicker-47key2004-car-audio-smart-dsp-4-channel-speaker-amplifier)

## Best For

- kicker enthusiasts

## Why This Product

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

## Key Features

- • **Power Meets Precision:** Delivering 200 watts across 4 channels, this compact powerhouse redefines your car’s soundstage with punch and clarity.
- • **Plug-and-Play Auto Tuning:** One-button mic calibration does in minutes what pros take hours to perfect—no guesswork, just flawless sound.
- • **Sleek, Space-Savvy Design:** Under 8 inches long and 2 inches high, fits discreetly behind your dash or under your seat without hassle.
- • **Future-Ready Compatibility:** Works seamlessly with modern start-stop vehicle systems and supports advanced crossover and bi-amp features.
- • **Concert-Quality Sound, Instantly:** Transform your factory stereo with AI-driven DSP and a 40-band EQ for crystal-clear, immersive audio.

## Overview

The Kicker 47KEY2004 is a compact 4-channel car amplifier with AI-powered DSP, featuring a 40-band equalizer and 24dB crossovers. It delivers 200 watts total power, auto-calibrates sound via a built-in microphone, and fits easily in tight spaces. Designed for modern vehicles including start-stop systems, it upgrades factory stereos to concert-quality audio with minimal setup.

## Description

Kicker 47KEY2004 KEY 4-Channel DSP Smart Amplifier, 4x50W The biggest advance - in the smallest package. Introducing the KEY smart amplifier and audio processor in one, featuring AI-driven DSP. Press the selector, and the microphone goes to work. The KEY uses a powerful internal computer to deliver dramatic improvements in realism and soundstage. A massive 40-band equalizer improves tonality, and a 24dB crossover re-defines the capabilities of each speaker. The concert quality of your factory stereo is revealed! What would take hours for a professional to achieve happens in a matter of minutes. All automatically. All with the press of a single button. POWERHOUSE - In addition to an unbelievable sound quality, the KEY200.4 delivers 200 watts of pumpin’ power to your factory speakers. At KICKER, we know power and clarity always go hand-in-hand. HIDDEN TREASURE - Measuring less than eight inches long and only two inches high, the KEY200.4 fits nearly anywhere. Mount it behind your radio, under the seat, or in your trunk with ease. START. DON’T STOP. - The KEY200.4 is one of the first amps fully compatible with newer vehicles using start-stop systems. Features - 200 Watts Of Power (50x4) Auto EQ Microphone With Selector Switch Included Compatible with Start/Stop Vehicle Technology FIT2 Technology Included Turn On Via Remote 12v Signal Or DC Offset Auto 40-Band Equalizer Bi-Amp Capability (Defeatable) Auto Compressor (Defeatable) Kicker EQ Preset (Defeatable) Auto Time Alignment (Defeatable) Auto Level Adjustment (Bi-Amp Mode Only) Auto Speaker Size Detection 24dB Crossovers 60/80/120hz High Pass Filter (Defeatable)

Review: I used this product to augment an old Mercedes’ 1970’s Becker stereo. I like my old stock head unit because it’s stylish, matches the old classic car and was quality back in its day. Today though… it’s poor sound quality. Ancient paper cone speakers, 4inch in front, 5inch in rear. I inserted the kicker key 200.4 into the system to work it’s electronic magic trickery. Once installed, I used the self-tuning system with the supplied microphone. The results are staggering. Somehow my ancient tiny speakers have acceptably good clarity and even acceptable levels of bass. They are all matched in volume, and the sound stage sounds like it’s right between my ears when sat in drivers seat. Superb product for lifting an worn out old stock system into the present day. Impressed with kicker yet again. Have ordered a set of their entry level speakers now as a follow up from these excellent results. Just a word of warning though… in old cars with earthed negative returns on the speakers, you will need to wire both negative and positive from/to the speakers and cannot earth the speaker inputs to ground. Because It’s a class D amp. (Same with any class D amps, not just kicker). Enjoy. There is also just a whisper of white noise from the amp when powered up, but no music playing. This needs to be improved for future models Kicker!
Review: When it arrived it was smaller than I expected which made installing it behind the dash on the passenger side possible (2021 Corolla) I installed this after installing some Focal speakers and the improvement in the sound is great after the auto calibration!

## Features

- Don’t just make your system louder - make it clearer Make it better
- Press the selector and the microphone goes to work The KEY uses a powerful internal computer to deliver dramatic improvements in realism and soundstage
- A massive 40-band equalizer improves tonality and a 24dB crossover re-defines the capabilities of each speaker
- The concert quality of your factory stereo is revealed! What would take hours for a professional to achieve happens in a matter of minutes

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B084HLVFFK |
| Best Sellers Rank | #99,231 in Electronics ( See Top 100 in Electronics ) #25 in Car Audio & Video Amplifier Equalizers |
| Department | unisex |
| Item model number | 47KEY2004 |
| Manufacturer | KICKER |
| Product Dimensions | 25.4 x 30.48 x 22.86 cm; 997.9 g |

## Product Details

- **Item dimensions L x W x H:** 25.4 x 30.5 x 22.9 centimeters
- **Manufacturer:** KICKER
- **Maximum supply voltage:** 12 Volts
- **Minimum supply voltage:** 12 Volts (DC)
- **Voltage:** 12 Volts

## Images

![Kicker 47KEY2004 Car Audio Smart DSP 4 Channel Speaker Amplifier 40 Band EQ Amp - Image 1](https://m.media-amazon.com/images/I/61w1RT4RLlL.jpg)
![Kicker 47KEY2004 Car Audio Smart DSP 4 Channel Speaker Amplifier 40 Band EQ Amp - Image 2](https://m.media-amazon.com/images/I/71WbeVrAAoL.jpg)
![Kicker 47KEY2004 Car Audio Smart DSP 4 Channel Speaker Amplifier 40 Band EQ Amp - Image 3](https://m.media-amazon.com/images/I/713Rx7U8Z-L.jpg)
![Kicker 47KEY2004 Car Audio Smart DSP 4 Channel Speaker Amplifier 40 Band EQ Amp - Image 4](https://m.media-amazon.com/images/I/71mjSp9kpFL.jpg)
![Kicker 47KEY2004 Car Audio Smart DSP 4 Channel Speaker Amplifier 40 Band EQ Amp - Image 5](https://m.media-amazon.com/images/I/71AM4LOkh0L.jpg)

## Customer Reviews

### ⭐⭐⭐⭐ Review
*by O***T on 11 July 2022*

I used this product to augment an old Mercedes’ 1970’s Becker stereo. I like my old stock head unit because it’s stylish, matches the old classic car and was quality back in its day. Today though… it’s poor sound quality. Ancient paper cone speakers, 4inch in front, 5inch in rear. I inserted the kicker key 200.4 into the system to work it’s electronic magic trickery. Once installed, I used the self-tuning system with the supplied microphone. The results are staggering. Somehow my ancient tiny speakers have acceptably good clarity and even acceptable levels of bass. They are all matched in volume, and the sound stage sounds like it’s right between my ears when sat in drivers seat. Superb product for lifting an worn out old stock system into the present day. Impressed with kicker yet again. Have ordered a set of their entry level speakers now as a follow up from these excellent results. Just a word of warning though… in old cars with earthed negative returns on the speakers, you will need to wire both negative and positive from/to the speakers and cannot earth the speaker inputs to ground. Because It’s a class D amp. (Same with any class D amps, not just kicker). Enjoy. There is also just a whisper of white noise from the amp when powered up, but no music playing. This needs to be improved for future models Kicker!

### ⭐⭐⭐⭐⭐ Review
*by C***Y on 11 November 2022*

When it arrived it was smaller than I expected which made installing it behind the dash on the passenger side possible (2021 Corolla) I installed this after installing some Focal speakers and the improvement in the sound is great after the auto calibration!

### ⭐⭐⭐⭐⭐ Review
*by M***R on 16 February 2026*

This DSP and amp is amazing! It gives a huge new dimension to your music. It's pretty small, and it's light, so it can fit in a lot of locations. It's very powerful. You won't need another more powerful amp on the side as well. I can only turn up my volume about 1/3 of the way before it gets unsafe (90dB) to listen to. The color coded wires are helpful and easy to follow.

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*Product available on Desertcart Taiwan*
*Store origin: TW*
*Last updated: 2026-03-19*