Garage
Shop

See all parts that fit your 1989 Formula

Kicker KEY200.4 (47KEY2004) (Open Box, Great)

200W RMS KEY Series 4-Channel Smart Amplifier with Automatic EQ and Processor

Kicker
Shop all Kicker
Product videos
highlight-star-icon

• 50 watts x 4 channel @ 4 ohm
• @ 2 ohm
• Bridged: @ 4 ohm
• Total RMS Power: 200 watts
• Class 4 ohm Stable 4-Channel Amplifier

Learn more about the ls-47key2004-u8

We apologize

This item has been discontinued

Product Highlights


• 50 watts x 4 channel @ 4 ohm
• @ 2 ohm
• Bridged: @ 4 ohm
• Total RMS Power: 200 watts
• Class 4 ohm Stable 4-Channel Amplifier

Description


Kicker brand icon

Authorized dealer

Item Condition - Open Box, Great:

This product works like new, is well-cared-for and in great condition. May show limited signs of wear or use and may be missing non-essential parts, accessories or original packaging.


Kicker 47KEY200.4 (47KEY2004)

Featuring an AI-driven DSP, the KEY200.4 is one of the first amps fully compatible with newer vehicles using start-stop systems. The amplifier also features FIT2 (Fail-Safe Integration Technology), providing compatibility with nearly every stock and aftermarket radio on the road today. If the temperature reaches the threshold, the KEY200.4's dynamic power-management algorithms kick into gear! Instead of hearing the amplifier's volume “pumping” or blowing a fuse – KEY technology engages a nearly inaudible limiter/compressor, applied only to the peaks of the music for as little as milliseconds at a time. The amplifier quickly cools, which deactivates the compressor. Music returns to its full dynamic range without a moment’s interruption!


Product Details:

  • Key Series Class 4 ohm Stable 4-Channel Amplifier
  • RMS Power Rating:
    • 4 ohm: 50 watts x 4 channel
  • Total power output: 200 watts
  • 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
  • 60/80/120hz High Pass Filter (Defeatable)
  • Input sensitivity: 0.25 - 10 volts
  • Frequency Response: 20 - 20000 Hz
  • Total Harmonic Distortion (THD): 1%
  • Signal to Noise Ratio: >90 dB
  • Variable high-pass filter: 60 - 120 Hz
  • Fuse Rating: 20A
  • 12 AWG gauge amplifier wiring kit is recommended for installation
  • Dimensions: 7-3/8" L x 2-3/4" W x 1-11/16" H
  • Authorized Internet Dealer
  • 2 Year Manufacturer's Warranty
  • MFR #: 47KEY200.4

Specifications & Details


Key Features
Amplifier Key Features
Built-in DSP
Compact Design
Speaker Level Inputs
Power Specifications - Full Range Channels
RMS Power @ 4 ohms
50 watts x 4 channel
Amplifier Specifications
Series
Key Series
Number of Channels
4-Channel
Total RMS Power Output
200 watts
Maximum Input Gauge Size
12 AWG
Minimum Impedance Unbridged
4 ohm
Minimum Impedance Bridged
Not Bridgeable
Frequency Response
20 - 20000 Hz
THD at Rated RMS Power
1%
Speaker Level Inputs
Yes
Preamp Outputs
No
Built-in Crossover
High-Pass (HP)
High-Pass Crossover Frequency
60 - 120 Hz
Signal-to-Noise Ratio
>90 dB
Remote bass/level controller
No
Fuse Rating
20A x 1 
Total Fuse Rating
20
Strappable
No
Amp Bluetooth Connectivity
No
Hi-Res Certified
No
Low-Level Input Sensitivity
0.25 - 10 volts
What is in the box?
Paperwork
User manual
Warranty/Registration card
WITB: Amplifiers
Amplifier
Mounting screws (4)
Washers (4)
One spare fuse
Warranty and Return Policy
Parts Warranty Duration
2 years
Labor Warranty Duration
2 years
Warranty Provider
Manufacturer

Item Details


Manufacturer:

Model Number:

47KEY200.4

Weight:

5.00lbs

Internal SKU:

ls-47key2004-u8

Internal Product ID:

231840

Product and How-to Videos


  • KICKER Key Install Video
  • AMP DYNO - Kicker KEY200.4 200w RMS Class-D 4-Channel Amplifier

Customer Ratings & Reviews


Kicker KEY200.4 (47KEY2004) (Open Box, Great) thumbnail image

5 star
0%
4 star
0%
3 star
0%
2 star
0%
1 star
0%



Durability
0
Value
0
Features
0
Design
0
Usability
0

Customer Reviews

Sort by:

Loading...
Sorry, no reviews found


UCT12250BL small

StreetWires UCT12250BL

250' Roll of 12 AWG Blue Speaker Cable

$169.99

List price $299.99

B130-101 small

Tripp Lite B130-101

VGA over Cat5 Extender Kit (Transmitter + Receiver) with Equalization and Gain Adjustment Screws

$109.99

List price $225.99

XS-GTX1642 small

Sony XS-GTX1642

120W 6.5" / 6.75" 4-Way Coaxial Speakers w/ PEI Tweeters

(9)

$59.95

List price $99.95

8594798 small

Kodak EasyShare W1020

10" TFT-LCD Quick Touch Digital Photo Frame with WiFi Wireless Capability and Multimedia Card Slots

$229.99

List price $269.99

GMOS-11 small

Axxess GMOS-11

OnStar Interface for Select 1999-2002 GM Trucks with or without Factory Amplifiers

(1)

$77.99

List price $129.99

CR01B small

Scosche CR01B Wiring Harness

Install a new car stereo in select 1974-2003 vehicles from Dodge, Chrysler

(136)

$6.95

List price $9.99

BDQB69WM-V1 small

VIBE Audio BlackDeath BDQB69WM-V1

6" x 9" 4 ohm Black Death Marine Series Subwoofer

$69.95

List price $199.99

Related Searches


Save up to 10 different vehicles in your garage
Vehicle
Store
Delete

2003 Ford Thunderbird

1989 Pontiac Formula

2003 Chrysler Concorde

2022 GMC Acadia

2017 Nissan Armada

1989 Volvo 780

1999 Daewoo Leganza

1992 Land Rover Range Rover

1981 Chevrolet K5 Blazer

2015 BMW 640i

Vehicle
Store
Delete

2003 Harley Davidson FLHTC/I Electra Glide Classic

Add vehicle Clear all vehicles
Where to find vehicle info
Are you sure you want to clear your garage?
This action cannot be undone. Confirm
This page was not designed for products.
If you continue, you will be redirected to a category customized for your vehicle. Continue
Loading...
Identify your vehicle and submodel details
  • Owner's manual
  • Vehicle's insurance card
  • Vehicle registration
  • Vehicle produced after 2005: Inside driver's side door
  • Vehicle produced before 2005: Rear passenger doorjamb, glove box, center console, or engine compartment
Car Info Side Door Icon
Vehicle Registration Icon
Vehicle Insurance Icon

Modern vehicles often require specific brackets, wiring harnesses, and mounting solutions. A fit guide ensures:

  • You see only parts engineered for your exact vehicle
  • You avoid incompatible radios, speakers, or wiring
  • Installation is smoother, faster, and frustration-free
  • You get the correct accessories the first time

Whether you're replacing a factory stereo or upgrading your entire audio system, the Fit Finder eliminates uncertainty.