Kicker Key Smart Amplifier & Digital Sound Processor - 200 Watt - 4 Channel

Kicker Key Smart Amplifier & Digital Sound Processor - 200 Watt - 4 Channel
Part Number: 47KEY2004

Fits your vehicle This product was made to fit the stock
Modified Fit :
Does not fit This product does not fit the stock
Please Note: This MAP product is excluded from all other discounts.

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*Contiguous U.S. only.

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Jbugs Experts.

Ok, so it's only a 200 watt amplifier, but the Kicker Key 200-4 Smart Amplifier packs a ton of features into a small package. Sure, it's a 4 channel amplifier that puts out 50 watts at 4 Ω to all 4 channels but it's also a computerized equalizer and crossover. After the amp has been hooked up to your speakers, you can download the Kicker Test Tones, plug in the microphone, press the selector button, play the tones and let the amplifier self adjust to not only make your sound system louder, but clearer. Even more so than most other amplifiers that produce twice as much power! The internal equalizer self adjusts the crossovers, the 40 band equalizer and time aligns the speaker signals to the position of the microphone so that the sound from all 4 speakers reaches your ears at the appropriate time. Other advanced features such as Auto Compression, limit the input and light up when audio clipping is detected letting you know something is too loud, and a Bi-Amp mode powers tweeters and woofers without a passive crossover allowing only the sounds that each speaker can reproduce through. The 7 3/8 x 2 3/4 x 1 11/16" amplifier features FIT2™ (Fail Safe Integration Technology) which allows it to be used in most any car on the road.


  • Power (watts/ch) 4 Ohm Stereo - 50x4
  • Microphone / Kicker EQ Button - Included
  • Dimensions in Inches (L x W x H) - 7 3/8 x 2 3/4 x 1 11/16
  • Frequency Response (Hz) - 20-20k, +0/-1dB
  • Input Sensitivity: - High Level 250mV-10V
  • Signal-to-Noise Ratio: - 90dB, a-weighted, re: rated power
  • Active Crossover: - 24dB/octave, selective high pass or all pass @ 60,80, or 120Hz


  • Class D Amp Technology
  • 4 Channel Amplifier & Digital Sound Processor
  • Non-Bridgeable, 4 Ω per Channel
  • 200 Watts Of Power (50x4)
  • Auto EQ Microphone With Selector Switch Included
  • FIT2™ Technology Included
  • Turn On Via Remote 12v Signal Or DC Offset
  • Auto 40-Band Equalizer
  • Bi-Amp Capability (can be disabled)
  • Auto Compressor (can be disabled)
  • Kicker EQ Preset (can be disabled)
  • Auto Time Alignment (can be disabled)
  • Auto Level Adjustment (Bi-Amp Mode Only)
  • Auto Speaker Size Detection
  • 24dB Crossovers
  • 60/80/120hz High Pass Filter (can be disabled)
  • Compatible with Start/Stop Vehicle Technology

What is included?

  • One 4 Channel Amplifier
  • One 12" Power / Ground / Turn On/ Speaker Output Harness
  • One 12" RCA Input harness
  • One 16" 14 Gauge Power Wire with 20 AMP Fused Inline Fuse Holder
  • One Microphone with 11.5' Cable (3.5mm plug)
  • One Rubber Microphone Holder
  • Two 12" Zip Ties
  • Four 1" Self Tapping Screws
  • One Owner's Manual (Multi-lingual)
  • Quick Start Guide

VW Key Amplifier Installation
JBugs staff member Sam.

Our Expert's Take:

We had the choice of any of Kicker's amplifiers to install in our 1971 Super Beetle build, and we installed this amplifier along with a Key 500.1 amp under the rear seat and don't regret it one bit. The compact amp can be mounted close to the battery, out of the way, out of sight, and out of mind. After we tuned the amplifier using the Kicker Test Tones and the included microphone, the amp was fully tuned and the stereo system sounds phenomenal!

California Prop 65 Warning: Cancer and Reproductive Harm


Please Note:The information listed below is for stock, unmodified VW's manufactured for sale in the US. VW's are commonly modified and very often parts from another year VW may have been installed on your car. California Pacific JBugs is not responsible for any errors if your car has been modified in any way.
VW Beetle
1954 - 1977
1954 - 1963
1964 - 1977
1954 - 1970
VW Super Beetle
1971 - 1976
1971 - 1979
VW Karmann Ghia
1956 - 1974
1957 - 1974
VW Type II (Bus)
1955 - 1979
Single Cab
1955 - 1979
Double Cab
1958 - 1979
VW Type 3
1962 - 1973
1962 - 1973
1966 - 1973
VW Thing
1973 - 1974
VW Vanagon
1980 - 1991



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Orders under $100 cost a flat-rate, $9.95*
*Continental United States only.

Express Shipping

If you need express shipping, please call us for expedited shipping options. We will try to consolidate as much as possible to offer the lowest shipping rates.

Alaska, Hawaii, Puerto Rico, APO/FPO, & US Territories
For orders to Hawaii, Alaska, APO/FPO, Puerto Rico and other US territories, we will provide you with your shipping options and the costs via phone. The shipping costs for these orders are billed at the time of shipping.

International Shipping

We do not ship internationally. We only ship to the USA and it's territories


90 Day Return Policy

You can return most unused, never installed, like-new items for 90 days from the date of receipt. Items must be in like-new condition.

The following items are final sale:

  • Special order items
  • Special order upholstery
  • Electrical items
  • Installed carburetors

For our full returns policy click here.
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