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Kicker KX400.4 (40KX400.4)

400W KX Series 4-Channel Class D-IC Stereo Bridgeable Car Power Amplifier (KX4004)

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• 50W x 4-Chan. @ 4 ohms
• 100W x 4-Chan. @ 2 ohms
• Bridged: 200W x 2 Chan. @ 4 ohms
• 3-Way System Protection
• Single Channel Operation
• 4 Gauge Power and Ground Inputs
• Stylish Magnetic Panel Covers Tuning Options for Clean Install

Learn more about the 40kx4004

We apologize

This item has been discontinued

Product Highlights


• 50W x 4-Chan. @ 4 ohms
• 100W x 4-Chan. @ 2 ohms
• Bridged: 200W x 2 Chan. @ 4 ohms
• 3-Way System Protection
• Single Channel Operation
• 4 Gauge Power and Ground Inputs
• Stylish Magnetic Panel Covers Tuning Options for Clean Install

Description


Kicker brand icon

Authorized dealer



KX400.1

Small Footprint, Insane Output

KX Amplifiers set the curve for smaller chassis footprints, with the largest model measuring at only 15-1/2 inches long. KICKER amps feature an optimized circuit layout for the most efficient use of components, the smallest footprint and clearest sound quality. Their cosmetic style is sharp as well, with magnetic panels covering control settings and glass fiber-composite end panels for a clean, stealth look that’s even UV-protected.

The highest-grade components and surface-mount technology under the high-mass heat sink allows the amp to perform at a level others fail to reach. Double-sided fiberglass circuit boards, Litz-wound transformers that minimize power loss & maximize transfer, TO218 output devices for high-current switching, and angled custom-tooled power connectors – the details make this amplifier the most reliable, high-performing audio equipment in the industry.


Tuning Options

High-Grade Components, Sleek Tuning Magnetic Door

Full-range models utilize Class D-IC power, which provides superior efficiency, exceptional sonic performance and the compact size. Users can take advantage of built-in crossovers and adjustable KickEQ processing for dialing in perfect sound, and a variable subsonic filter provides subwoofer protection from potentially damaging lowest frequencies. A three-second turn-on delay eliminates additional interference, red over/under voltage LEDs, and auto-reset protection are some of the other conveniences utilized by dependable KICKER amps.




Kicker Audio: Quality, Performance, and Passion
(Sonic at Stillwater Designs HQ)



Kicker Always Exceeds Rated Power

General Features:

  • KX Series 4-Channel Class D-IC Car Amplifier
  • RMS Power Rating:
    • 4 ohms: 50 watts x 4 chan.
    • 2 ohms: 100 watts x 4 chan.
    • Bridged, 4 ohms: 200 watts x 2 chan.
  • Max power output: 800 watts x 1 chan.
  • High-efficiency regulated MOSFET power supply
  • LED power (green) and protect (red) indicators
  • Variable Bass Boost (Variable 0-18 dB @ 40 Hz)
  • Soft start turn-on
  • 4/3/2 and mono channel operation
  • Preamp RCA outputs to daisy chain multiple amps
  • Equipped with FIT (Fail-Safe Integration Technology) to accept output from virtually any source
  • FIT’s lab-grade, balanced differential inputs offer best possible noise rejection
  • Speaker-level input compatible (switchable) through RCA connection, Kicker 09ZISL required and sold separately
  • Double-sided fiberglass circuit board
  • Built-in crossovers and adjustable KickEQ for dialing it in
  • DC offset or 12v remote auto turn-on modes
  • Angled custom-tooled power connectors
  • Stylish magnetic panels cover controls and glass-fiber composite end panels
  • Heavy duty high-mass aluminum alloy heat-sink
  • Input sensitivity:
    • Low level: 125mV-5V
    • High level: 250mV-10V
  • Variable low-pass filter (40-500 Hz, 24 dB/octave)
  • Variable high-pass filter (10-500 Hz with 10x multiplier, 24 dB/octave)
  • Frequency Response: 10-20,000 Hz
  • CEA-2006 compliant amplifier
  • 4 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: 8-5/16"W x 11-3/16"L x 2-1/8"H
  • Authorized Internet Dealer
  • 2-year Manufacturer's Warranty (extends to 3 years when purchased with a Kicker amp kit)

Product history:

Kicker 40KX400.4 thumbnail
(newest, current model)
Kicker 11IX500.4 thumbnail
(previous model, replaced by Kicker KX400.4 (40KX400.4))

This item is currently not eligible for our low price guarantee. This may be due to supply constraints, manufacturer restrictions, or another reason. We're always here to help you get the best price possible so give us a call or email today. Our experts will do their best to build the system that works for you within the rules.

Specifications & Details


Power Specifications - Full Range Channels
RMS Power @ 4 ohms
50 watts x 4 channel
RMS Power @ 2 ohms
100 watts x 4 channel
Bridged RMS Power
200 watts x 2 channel
Amplifier Specifications
Series
KX Series
Amplifier Class
D
Number of Channels
4-Channel
Total Peak Power Output
800 watts
Total RMS Power Output
400 watts
Maximum Input Gauge Size
4 AWG
Minimum Impedance Unbridged
2 ohms
Minimum Impedance Bridged
4 ohms
Speaker Level Inputs
No
Preamp Outputs
1 pair
Built-in Crossover
Low-Pass (LP)
High-Pass (HP)
High-Pass Crossover Frequency
10 - 50000 Hz
Low-Pass Crossover Frequency
40 - 50000 Hz
Signal-to-Noise Ratio
95 dB
Bass Boost
0 - 18 dB
Remote bass/level controller
No
Strappable
No
Warranty and Return Policy
Parts Warranty Duration
2 years
Labor Warranty Duration
2 years
Warranty Provider
Manufacturer

Item Details


Manufacturer:

Model Number:

40KX400.4

Weight:

7.00lbs

Internal SKU:

40kx4004

Internal Product ID:

69517

Product and How-to Videos


  • KX Amplifier Introduction Part 2 Setting gains
  • KX Amplifier Introduction Part 3 Setting The Low Pass Crossovers
  • KX Amplifier Introduction Part 4. Setting Kick eq plus
  • KX Amplifier Introduction Part 1
  • Kicker KX Car Amplifiers (Mono, 2, 4, & 5 Channel Amps) | CES 2013
  • Kicker KX Car Amplifiers | New Amp for 2013
  • How To Install an Amplifier: Car Amplifier Basics Part 2

Customer Ratings & Reviews



5 star
50%
4 star
50%
3 star
0%
2 star
0%
1 star
0%



Durability
4.5
Value
4.5
Features
4.5
Design
5
Usability
4.5

Customer Reviews

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Great sound!!

It meets and exceeds my expectations, works much better and crystal clear sound on my speakers!!

By HECTOR on May 4, 2014

26

found this helpful.

wow amwesome

Loud loud loud clean great quality must get small amp with many features very happy great prices!!!!! Sonic is my favorite store.

By Frank on July 1, 2015 Checkmark Icon Verified purchase

10

found this helpful.

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