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Kicker KX400.1 (40KX400.1)

400W RMS KX Series Monoblock Class-D Car Power Amplifier

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• RMS: 200W x 1 @ 4 ohm, 400W x 1 @ 2 ohm
• Total Peak Power: 800W
• CEA-2006 Compliant
• Kick EQ+ Bass Boost: 0-18 dB from 20-80 Hz
• Magnetic Panel Covers Controls
• Dimensions: 8-5/16"W x 8"L x 2-1/8"H

Learn more about the 40kx4001

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This item has been discontinued


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Product Highlights


• RMS: 200W x 1 @ 4 ohm, 400W x 1 @ 2 ohm
• Total Peak Power: 800W
• CEA-2006 Compliant
• Kick EQ+ Bass Boost: 0-18 dB from 20-80 Hz
• Magnetic Panel Covers Controls
• Dimensions: 8-5/16"W x 8"L x 2-1/8"H

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 allow our amps to perform at a level others fail to reach. Double-sided fiberglass circuit boards, Litz-wound transformers that minimize power loss and maximize transfer, TO218 output devices for high-current switching, buffered RCA outputs on bass amps, angled custom-tooled power connectors – the details make our amplifiers the most reliable, high-performing audio equipment in the industry.


Tuning Options

High-Grade Components, Sleek Tuning Magnetic Door

KX monoblock amps use a Class-D, boost-converter power supply for the highest sound quality and efficiency. Boost-converter technology allows KX.1 amps to achieve a typical efficiency near 80 percent, significantly beyond standard amp power supplies. That, along with the adaptability to use fewer internal parts, allows for a smaller bass-amp size, the coolest operation, optimum reliability and overall excellent performance. Full-range models utilize Class D-IC power, which provides superior efficiency, exceptional sonic performance and the compact size.

An included remote level control provides bass volume from the dash. 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 Monoblock Class D Car Amplifier
  • RMS Power Rating:
    • 4 ohm: 200 watts x 1 chan.
    • 2 ohm: 400 watts x 1 chan.
  • Max power output: 800 watts x 1 chan.
  • Variable Kick EQ+ Bass Boost (0-18 dB Selectable 20-80 Hz, Variable Q: 1-5)
    • Wired remote bass level control included
    • Kick EQ+ is designed to let you fine tune your bass boost - the possibilities are practically endless
    • Selectable boost frequency from 20-80 Hz gives you control of the boosted frequency - typically this is fixed at 45 Hz on most amplifiers
    • Q Factor: 1-5 let's you narrow or expand the width of the selected bass frequency
  • High-efficiency regulated MOSFET power supply
  • LED power (green) and protect (red) indicators
  • Soft start turn-on
  • 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
  • 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
  • Dual speaker terminals simplify the hookup of multiple speakers
  • Heavy duty high-mass aluminum alloy heat-sink
  • Input sensitivity:
    • Low level: 125mV-5V
    • High level: 250mV-10V
  • Variable low-pass filter (40-160 Hz, 24 dB/octave)
  • Variable low-pass filter (10-80 Hz, 24 dB/octave)
  • Frequency Response: 10-160 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 8"L x 2-1/8"H
  • Authorized Internet Dealer
  • 2-year Manufacturer's Warranty

Product history:

Kicker 40KX400.1 thumbnail
(newest, current model)
Kicker KX400.1 thumbnail
(previous model, replaced by Kicker KX400.1 (40KX400.1))

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.


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Specifications & Details


Power Specifications - Subwoofer Channel
RMS Power @ 4 ohms
200 watts x 1 channel
RMS Power @ 2 ohms
400 watts x 1 channel
Amplifier Specifications
Series
KX Series
Amplifier Class
D
Number of Channels
1 - Mono
Total Peak Power Output
800 watts
Total RMS Power Output
400 watts
Maximum Input Gauge Size
4 AWG
Minimum Impedance Unbridged
2 ohm
Minimum Impedance Bridged
Not Bridgeable
Speaker Level Inputs
No
Preamp Outputs
1 pair
Built-in Crossover
Low-Pass (LP)
Low-Pass Crossover Frequency
40 - 160 Hz
Subsonic Filter
10 - 80 Hz
Signal-to-Noise Ratio
95 dB
Bass Boost
0 - 18 dB
Remote bass/level controller
Yes
Strappable
No
Warranty and Return Policy
Parts Warranty Duration
2 years
Labor Warranty Duration
2 years
Warranty Provider
Manufacturer

Item Details


Manufacturer:

Model Number:

40KX400.1

Weight:

6.50lbs

Internal SKU:

40kx4001

Internal Product ID:

69515

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


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