• 65 Watts RMS x 4 + 150 Watts RMS x 1 at 4 Ohm
• 90 Watts RMS x 4 + 300 Watts RMS x 1 at 4 Ohm
• KickEQ™ Boost

• 400 Watts RMS x 1 at 4 Ohms
• 600 Watts RMS x 1 at 2 Ohms
• Remote Level Control

• 60 Watts RMS x 4 + 400 Watts RMS x 1 at 4 Ohm
• 75 Watts RMS x 4 + 600 Watts RMS x 1 at 2 Ohm
• Remote Level Control

• 400 Watts RMS x 1 @ 4Ω
• 700 Watts RMS x 1 @ 2Ω
• HRC 02 Remote Control Compatibility

• 100 Watts RMS x 4 + 400 Watts x 2 @ 4 Ohm
• 150 Watts RMS x 4 + 600 Watts x 2 @ 2 Ohm
• Hi-Res Compatibility Performance

• 500 Watts x 1 @ 4 Ohm
• 800 Watts x 1 @ 2 Ohm
• 1000 Watts x 1 @ 1 Ohm

• 100 Watts RMS x 4 @ 4 Ohm
• 150 Watts RMS x 4 @ 2 Ohm
• Hi-Res Audio Certified

• 100 Watts RMS x 4 @ 4 Ohm
• 150 Watts RMS x 4 @ 2 Ohm
• Hi-Res Audio Certified

• 300 Watts x 1 @ 4 Ohm
• 500 Watts x1 @ 2 Ohm
• Wired Remote Level Control Included

• 500 Watts RMS x 1 at 4 Ohms
• 1000 Watts RMS x 1 at 2 Ohms
• Speaker Level Input

Kicker 53KEY2004 4-Channel Smart Amplifier

Introducing the KEY smart amplifier and audio processor in one, featuring AI-driven DSP. The biggest advance - in the smallest package.

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)

Acoustic Correction = Audio Perfection
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. All automatically. All with the press of a single button.

Start with these FREE TEST TONES for easy setup!

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. Dont Stop.
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.

Keep the Beat 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!

Specifications
White Paper: 53KEY2004-wp.pdf
Power (watts/ch), 4 Ohm stereo: 50x 4
Microphone/Kicker EQ button: included
Standard dimensions(H x W x L): 1-11/16 x 2-3/4 x 7-3/8
Metric dimensions(H x W x L): 4.3 x 7 x18.7
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: Off, 60, 80, or 120 Hz; 24dB/octave

What's in the Box:
1 - 4 channel power amplifier
1 - microphone
1 - microphone cable with switch
1 - fuse holder
1 - manual and installation hardware