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Kicker KEY180.4 (45KEY1804) Key Smart Amplifier

180W RMS 4-Channel Full-Range Car Amplifier with Automatic EQ, DSP, Time Alignment

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• 45 Watts RMS x 4 @ 4 ohms
• Automatic Tuning
• CEA-2006 Compliant
• All Tuning Performed with Included Microphone
• Improves Sound at the Touch of a Button
• Dimensions: 7-3/8" W x 2-3/4" L x 1-11/16" H

Learn more about the 45key1804

We apologize

This item has been discontinued

Description


Kicker brand icon

Authorized dealer



General Features:

  • Kicker KEY180.4 Key Smart Amplifier
  • Class-D Full Range 4 ohm Stable 4-Channel Amplifier
  • RMS Power Rating:
    • 4 ohms: 45 watts x 4 chan.
  • Total power output: 180 watts
  • CEA-2006 Compliant Amplifier
  • Self tuning, automatic sound system improving amplifier!
  • Automatically detects speaker sizes
  • Automatically tunes four full-range speakers to optimize your system without the complicated equipment. Handles:
    • Speaker level adjustment
    • Speaker equalization
    • Automatic 40-Band equalization
    • Time alignment
  • Handles all tuning via included microphone
  • Start/Stop compatible! If your car automatically shuts off at stop lights, this amp can withstand the voltage drop
  • Kicker FIT2 (Failsafe Integration Technology)
  • Pulse Width Modulated MOSFET power supply
  • Wired remote bass level control included
  • LED power (green) and protect (red) indicators
  • Soft start turn-on
  • 4 channel operation
  • Speaker-level (high-level) inputs
  • Small footprint: Easy to mount and hide away
  • 3-way protection circuitry (thermal, overload, and speaker short protection)
  • Heavy duty aluminum alloy heat-sink
  • Input sensitivity:
    • High level: 250mV-10V
  • Frequency Response: 20 - 20000 Hz
  • Total Harmonic Distortion (THD): <1%
  • Signal to Noise Ratio: 90dB
  • Active crossover, selective high or all pass
    • 60, 80 120Hz
  • 14 gauge power and ground wiring is recommended for installation. Contact us for information regarding a discount on select amplifier kits from our website when purchased together with this amplifier. Click Here for our contact information.
  • Dimensions: 7-3/8"W x 2-3/4"L x 1-11/16"H
  • Authorized Internet Dealer
  • 1-year Manufacturer's Warranty
Check out the KEY180.4 Key Smart Amplifier Owner's Manual

Specifications & Details


Power Specifications - Full Range Channels
RMS Power @ 4 ohms
45 watts x 4 channel
Amplifier Specifications
Amplifier Class
D
Number of Channels
4-Channel
Total RMS Power Output
180 watts
Maximum Input Gauge Size
14 AWG
Minimum Impedance Unbridged
4 ohms
THD at Rated RMS Power
<1%
Speaker Level Inputs
Yes
Preamp Outputs
No
Built-in Crossover
High-Pass (HP)
Full (AP)
High-Pass Crossover Frequency
60 - 180 Hz
Signal-to-Noise Ratio
90 dB
Remote bass/level controller
Yes
Strappable
No
Sonic Certified Amplifier
Not Tested
Amp Bluetooth Connectivity
No
Hi-Res Certified
No
What is in the box?
Paperwork
User manual
WITB: Amplifiers
Amplifier
Wired gain knob (wire attached)
Mounting screws (4)
High-level input wiring harness w/ molex connector
Warranty and Return Policy
Parts Warranty Duration
1 year
Labor Warranty Duration
1 year
Warranty Provider
Manufacturer

Item Details


Manufacturer:

Model Number:

KEY180.4

Weight:

5.00lbs

Internal SKU:

45key1804

Internal Product ID:

150283

Customer Ratings & Reviews



5 star
100%
4 star
0%
3 star
0%
2 star
0%
1 star
0%



Durability
5
Value
5
Features
5
Design
5
Usability
5

Customer Reviews

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Magic Box!

Ive used several auto tune dsp's in the past. This is by far the easiest and the best sounding off all! Also don't let the 45watts a channel fool you. It is plenty powerful and gets very loud, and sounds good doing it! I am running a 2way front stage with Silverflute mids and Morel tweeters. Both are rated at 80watts rms and in fact my tweeters are 8ohm. So they are seeing approx 22.5watts to them and they sound very smooth with no fatigue. So if you are on the fence about this amp just buy it and you will have a smile on your face. And let me also point out I have no noise with this amp, no pops,his, or alternator whine. Hope this review helps.

By Anonymous on December 16, 2018

3

found this helpful.

Great sq

If you need a small great sounding little amp that’s super easy to use for your highs this is it. It does all the work for you so no adjusting or anything g it’s a plug and play unit.

By Anonymous on August 12, 2018

3

found this helpful.

Great little amp

made my stock Sync 3 system sound so much better! Combined it with new Kicker speakers, and really improved the quality of sound!

I didnt like the sound stage setting... but the auto equalization was great.. tip is turn down all the treble/mid/low on the radio and then let the unit do its auto equalizing. Then you can add a bit more high/bass as desired.

By Anonymous on May 22, 2019 Checkmark Icon Verified purchase

1

found this helpful.

Works great!

If you’re looking to use your stock deck and want a lot more output, this is a great piece of kit. We used it in a 2018 Toyota Camary with the stock speakers and another amp. to power a pair of 8” subs in an enclosure in the trunk and it really worked out great.

By Anonymous on April 12, 2019 Checkmark Icon Verified purchase

1

found this helpful.

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