---
product_id: 687373518
title: "KICKER 1CH Key Series Amplifier"
brand: "kicker"
price: "$20948"
currency: MXN
in_stock: true
reviews_count: 5
category: "Kicker"
url: https://www.desertcart.mx/products/687373518-kicker-1ch-key-series-amplifier
store_origin: MX
region: Mexico
---

# Auto-calibrating mic for instant soundstage 500W max power output 40-band EQ for precise tuning KICKER 1CH Key Series Amplifier

**Brand:** kicker
**Price:** $20948
**Availability:** ✅ In Stock

## Summary

> 🎵 Elevate your ride’s bass game — clarity and power, no compromises.

## Quick Answers

- **What is this?** KICKER 1CH Key Series Amplifier by kicker
- **How much does it cost?** $20948 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.mx](https://www.desertcart.mx/products/687373518-kicker-1ch-key-series-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

- • **Compact Powerhouse:** Sleek, space-saving design fits discreetly behind glove boxes or under seats without sacrificing power.
- • **Concert-Quality Clarity:** Transform your factory stereo into a live concert experience with AI-driven DSP that perfects every note.
- • **Instant Pro-Level Tuning:** Built-in microphone and smart auto-calibration deliver flawless soundstage setup in minutes, no expert required.
- • **Plug & Play Compatibility:** Universal FIT 2+ tech accepts factory signals up to 40V, no complex rewiring needed.
- • **Effortless Sound Customization:** 24dB crossover and 40-band equalizer let you sculpt bass and treble with surgical precision.

## Overview

The KICKER 1CH Key Series Amplifier (KEY500.1) is a compact, 1-channel 500W subwoofer amplifier with AI-driven DSP that auto-calibrates sound using a built-in microphone. Featuring a 40-band equalizer and 24dB crossovers, it delivers concert-quality audio clarity and bass precision. Its FIT 2+ technology ensures seamless compatibility with nearly all factory and aftermarket car audio systems, accepting high-level inputs up to 40 volts. Designed for easy installation in tight spaces, it transforms your factory stereo into a powerful, professionally tuned sound system in minutes.

## Description

Kicker 47KEY5001 KEY 1-Channel DSP Smart Amplifier, 1x500W The KEY500.1 is a smart subwoofer amplifier and audio processor in one, featuring an AI-driven DSP (digital signal processing). Using KICKER’s supplied test tones, the KEY automatically analyzes the audio being fed into the amplifier. Once this signal has been analyzed, the amp will automatically fix peaks in the signal coming in and restore the low bass that is typically missing. In a matter of moments, you get a clean, even bass response from your amp! Craft your sound with ease! The KEY500.1 comes with 24dB sub-sonic and low-pass crossovers, bass boost and gain controls. Measuring about eight inches long and less than two inches high, the KEY500.1 fits nearly anywhere. Mount it behind your glove box, under the seat, or in your trunk with ease. The amplifier also features FIT 2+ (Fail-safe Integration Technology 2 PLUS) – which provides nearly universal compatibility with stock or aftermarket radios. Another industry first, the KEY500.1 is uniquely suited to accept factory input signals as high as 40 volts (400 watts). The KEY amplifier will work with almost every car on the road today, whether you have a factory or aftermarket audio system. Specifications - Power (watts/ch), 1 Ohm stereo: 500 Power (watts/ch), 2 Ohm stereo: 300 Power (watts/ch), 4 Ohm stereo: 150 Microphone/Kicker EQ button: included Standard dimensions(H x W x L)(in, cm) 1-11/16, 4.3 x 2-3/4, 7 x 7-3/8, 18.7 Frequency Response (Hz): 10-160 Input Sensitivity: high level: 1V-40V / low level: 125mV-5V Signal-to-Noise Ratio: >90dB, a-weighted, re: rated power Selectable Electronic Crossover: Variable Low Pass 40-160 Hz, Variable High Pass 10-40 Hz What's in the Box: 1 - fuse holder, 1 - manual and installation hardware

Review: Excellent product.
Review: I was immediately let down the by original 4" sub that came with the "premium" Bose audio system, but I didn't want to start cutting wires on my brand new car. I wanted to use the original subwoofer signal, but I also knew that Bose was pulling a few tricks to roll off the bass output in order to protect their tiny little subwoofer from blowing itself to shreds. The amp is small enough that I was able to just carve a recess for it out of the foam piece in the trunk, so it's completely hidden and protected. I was actually able to make a little harness that plugs directly to the original signal wire and take it to the Kicker amp rather than the Bose subwoofer. With this, I can actually unplug the amp, remove the sub from the trunk and plug the original Bose sub straight back in without any further fuss. It also works out well because the 4th gen Mazda 3 doesn't have a single fuse that is switched with the ignition, so running a remote turn-on wire wasn't an option. However, with the high-level subwoofer signal going into the amp and DC offset mode activated, it turns on and off perfectly, no remote wire necessary. The signal processing done by this amp is perfect for being attached to the Bose system, again, because I didn't want to go tearing the car apart or cutting wires to reach an unprocessed, full-range signal in my brand new car. The setup process for that took me a few tries to get right because THERE ARE NO INSTRUCTIONS IN THE BOX. I was trying to follow along with youtube videos from memory. And then I also kept forgetting to get the car's stereo set up correctly before I started, which that one's on me... Once I looked up and printed off the instruction PDF on my own though, it was pretty straight forward. However, there are multiple sets of test tracks and they don't really specify which to use. I originally started with the -0dB set, and that ended up feeling pretty weak. But after reading the instruction for how to do a factory reset on the amp, I redid the setup process one last time with the -5dB test tracks and it's absolutely perfect now. I did have an issue with the Kicker CXARC remote volume knob though. The cord that it came with wouldn't click in deep enough to the hole on the amp, so I had to buy a different cord that was narrower near the jack itself. So it's already disappointing that the amp just doesn't already come with the remote volume knob, and even more annoying that I also had to replace the cord for it, meaning that to get a working remote knob for this amp, it's basically an extra $55. Also note that the power terminals on this amp aren't particularly big. I thought I'd play it super safe by using a 4AWG wiring kit, but the terminals only fit 8AWG wire, so that was basically just wasted money.

## 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 | B084HLH77B |
| Guaranteed software updates until | unknown |
| Item model number | 47KEY5001 |
| Manufacturer | Kicker |
| Product Dimensions | 25.4 x 30.48 x 22.86 cm; 1.13 kg |

## Product Details

- **Item dimensions L x W x H:** 25.4 x 30.5 x 22.9 centimetres
- **Manufacturer:** Kicker
- **Maximum supply voltage:** 40 Volts
- **Minimum supply voltage:** 40 Volts
- **Voltage:** 40 Volts

## Images

![KICKER 1CH Key Series Amplifier - Image 1](https://m.media-amazon.com/images/I/71o3EX0MrCL.jpg)
![KICKER 1CH Key Series Amplifier - Image 2](https://m.media-amazon.com/images/I/61xFAXh5zfL.jpg)
![KICKER 1CH Key Series Amplifier - Image 3](https://m.media-amazon.com/images/I/71aamBCL3dL.jpg)
![KICKER 1CH Key Series Amplifier - Image 4](https://m.media-amazon.com/images/I/71StDMtXOFL.jpg)
![KICKER 1CH Key Series Amplifier - Image 5](https://m.media-amazon.com/images/I/71reAuyLZUL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Review
*by B***A on 16 October 2025*

Excellent product.

### ⭐⭐⭐⭐⭐ Review
*by A***R on 4 May 2024*

I was immediately let down the by original 4" sub that came with the "premium" Bose audio system, but I didn't want to start cutting wires on my brand new car. I wanted to use the original subwoofer signal, but I also knew that Bose was pulling a few tricks to roll off the bass output in order to protect their tiny little subwoofer from blowing itself to shreds. The amp is small enough that I was able to just carve a recess for it out of the foam piece in the trunk, so it's completely hidden and protected. I was actually able to make a little harness that plugs directly to the original signal wire and take it to the Kicker amp rather than the Bose subwoofer. With this, I can actually unplug the amp, remove the sub from the trunk and plug the original Bose sub straight back in without any further fuss. It also works out well because the 4th gen Mazda 3 doesn't have a single fuse that is switched with the ignition, so running a remote turn-on wire wasn't an option. However, with the high-level subwoofer signal going into the amp and DC offset mode activated, it turns on and off perfectly, no remote wire necessary. The signal processing done by this amp is perfect for being attached to the Bose system, again, because I didn't want to go tearing the car apart or cutting wires to reach an unprocessed, full-range signal in my brand new car. The setup process for that took me a few tries to get right because THERE ARE NO INSTRUCTIONS IN THE BOX. I was trying to follow along with youtube videos from memory. And then I also kept forgetting to get the car's stereo set up correctly before I started, which that one's on me... Once I looked up and printed off the instruction PDF on my own though, it was pretty straight forward. However, there are multiple sets of test tracks and they don't really specify which to use. I originally started with the -0dB set, and that ended up feeling pretty weak. But after reading the instruction for how to do a factory reset on the amp, I redid the setup process one last time with the -5dB test tracks and it's absolutely perfect now. I did have an issue with the Kicker CXARC remote volume knob though. The cord that it came with wouldn't click in deep enough to the hole on the amp, so I had to buy a different cord that was narrower near the jack itself. So it's already disappointing that the amp just doesn't already come with the remote volume knob, and even more annoying that I also had to replace the cord for it, meaning that to get a working remote knob for this amp, it's basically an extra $55. Also note that the power terminals on this amp aren't particularly big. I thought I'd play it super safe by using a 4AWG wiring kit, but the terminals only fit 8AWG wire, so that was basically just wasted money.

### ⭐⭐⭐⭐⭐ Review
*by R***A on 8 April 2025*

Works great! The automatic tuning is awesome, and the sound quality is excellent. Running it with a single 10" kicker comp 2ohm.

## Frequently Bought Together

- Kicker KEY5001 500w Mono Amplifier w/Bass Revealer Processor Smart Amp 47KEY5001
- Kicker 46CXARCT Remote Bass Level Control|Wired|Compatible with CX, CXA, DX, PX Amplifiers Equipped with Remote BASS Jack|KEY500.1 Compatible|3.5mm Plug
- Kicker 48CWR84 CompR 8" Subwoofer, DVC, 4-ohm

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*Product available on Desertcart Mexico*
*Store origin: MX*
*Last updated: 2026-02-21*