Crutchfield - North America's electronics authority since 1974

1.888.955.6000
 
 
Free Shipping on Everything.  60-Day Money-Back Guarantee  |  Lifetime Tech Support
 

Kenwood Excelon KAC-X542

4-channel car amplifier
88 watts RMS x 4

Zoom Kenwood Excelon KAC-X542
Front
Video loading and will display in just a moment.
Photos
Kenwood Excelon KAC-X542 Kenwood Excelon KAC-X542 Kenwood Excelon KAC-X542
 
Videos
 
We don't check this item for fit or compatibility.

Item# 113KACX542 offer details

Item# 113KACX542

Review Sumary

 
DISCONTINUED
 
This item is no longer available to purchase.
 
Contact us for other options
 
Call   Email  
 
In-stock Alternative
 
 
 
 
 
Kenwood

Our take on the Kenwood Excelon KAC-X542

Kenwood's Excelon amps not only provide plenty of power, they're loaded with features that allow you an amazing level of control.

Case in point, the KAC-X542 4-channel amplifier can deliver 88 watts each to two pairs of full-range speakers, or 270 watts each to a pair of subs. And this versatile amp controls that powerful output with a variety of tools. Start shaping your sound with the variable high- and low-pass filters, then use the bass level control to adjust the lows, while the treble level control lets you tailor high-frequency output.

A top-mounted LCD display presents real-time info on input voltage and current, amp temperature, protection status, and the cooling fan's speed. Kenwood's Amplifier Management System allows you to use your Excelon in-dash stereo to control bass and treble settings, bass extension, and volume level on up to eight Excelon amps.

Get more info on this product

Highlights:

  • 4-channel car amplifier
  • 88 watts RMS x 4 at 4 ohms (124 watts RMS x 4 at 2 ohms)
  • 270 watts x 2 in bridged mode (4-ohm stable in bridged mode)
  • variable high- and low-pass filters (50-200 Hz, 24 dB/octave low-pass, 12 dB/octave high-pass)
  • variable bass control (-15 to +15 dB selectable for 60/80/100/200 Hz and selectable Q factor)
  • subsonic filter (channels 3,4 — 15 Hz, 24 dB/octave)
  • variable treble control (-15 to +15 dB selectable for 10/12.5/15/17.5 kHz)
  • A.M.S. (Amplifier Management System)
  • AMP Information Display (voltage, current, temperature, cooling fan speed)
  • 2-speed cooling fan
  • gold-plated preamp inputs and outputs
  • CEA-2006 compliant
  • fuse rating: 30A x 2
  • 4-gauge power and ground leads recommended — wiring and hardware not included with amplifier
  • 17-5/8"W x 2-3/8"H x 10-1/2"D
  • warranty: 2 years
  • Our 60-day money-back guarantee
 
Hands-on research from the Crutchfield Labs (what are the Labs?)

Features and Specs

Features and Specs
Performance
RMS Power Output (Watts x Channels)
Loading...
88 x 4
Peak Power Output (Watts x Channels)
Loading...
N/A
Power at 2 Ohms (Watts x Channels)
Loading...
124 x 4
Bridged Power (Watts x Channels)
Loading...
270 x 2
Minimum Impedance Bridged
Loading...
4
Minimum Impedance Unbridged
Loading...
2
Best Frequency Response
Loading...
5-70k Hz
THD at Rated RMS Power
Loading...
1%
Signal to Noise Ratio
Loading...
76 dB
Input Voltage
Loading...
14.4v
Features
Amplifier Class
Loading...
AB
Low-Pass Crossover Frequency
Loading...
50-200 Hz
Low-Pass Slope (dB/octave)
Loading...
24 dB
High-Pass Crossover Frequency
Loading...
50-200 Hz
High-Pass Slope (dB/octave)
Loading...
12 dB
Bass Boost
Loading...
No
Bass Boost Frequency
Loading...
N/A
Fan Cooled
Loading...
Yes
Fuse Rating
Loading...
30 x 2
Speaker Level Inputs
Loading...
No
Preamp Outputs
Loading...
1 pair
Width (inches)
Loading...
17-5/8
Height (inches)
Loading...
2-3/8
Depth (inches)
Loading...
10-1/2
Parts Warranty
Loading...
2 Years*
Labor Warranty
Loading...
2 Years*

Product Research

Product Research
What's in the box?

Download owner's manual

  • 4-channel amplifier with two 30A fuses inserted into the chassis
  • 1 Metal cover
  • 1 Allen wrench
  • 4 Machine screws
  • 4 Self-tapping screws
  • 1 Rubber terminal cover
  • Instruction Manual (English/French/Spanish)
  • Warranty Card
  • "Caution" sheet
Our Product Research Team

At Crutchfield, you'll get detailed, accurate information that's hard to find elsewhere. That's because we have our own in-house Product Research team — they open the box, verify contents, check the owner's manual, and record dimensions, features and specs. We stay on top of new products and technologies to help people make informed choices.

Features
Inputs and Outputs Notes
Warranty Note

Features

LED Status Display: The top-mounted LED display can be adjusted to show any of the following information:

  • Voltage: indicates the source voltage
  • Current: indicates the current consumption
  • Temperature: indicates the internal temperature
  • Fan: indicates the rotation speed of the cooling fan in 3 steps: Fast, Slow, or Off

Amplifier Management System (A.M.S.): A.M.S. is an extremely sophisticated system that provides extensive control over an amplifier's bass and treble EQ, bass extension and volume offset. It also allows you to monitor key amp performance criteria (source voltage, current consumption, internal temperature, fan speed, protection status). In addition to being able to change EQ settings and monitor amp performance at the amp itself, connect one of these amps to a compatible Kenwood Excelon in-dash receiver, and the advanced 2-way communication system lets you adjust the amplifier EQ and monitor amp performance of up to 8 amps right from the in-dash receiver. The receiver's display shows all of the EQ settings and performance criteria. A 13-pin DIN cable (sold separately) is required to connect the amplifier to a Kenwood head unit equipped with A.M.S. controls; item 469KNWDIN can be used to make the connection between the amplifier and an A.M.S. compatible headunit. The Amplifier Management System lets you adjust the following settings:

  • Bass Center Frequency: allows you to choose 60 Hz, 80 Hz, 100 Hz, or 200 Hz
  • Bass Level: can be adjusted from -15 to +15 dB
  • Bass Q Factor: allows you to choose Q1.00, Q1.25, Q1.50, or Q2.00
  • Bass Extend: can be turned On or Off. When turned On, the low frequency response is extended by 20%.
  • Treble Center Frequency: allows you to choose 10 kHz, 12 kHz, 15 kHz, or 17 kHz
  • Treble Level: can be adjusted from -15 to +15 dB
  • Volume Offset: can be adjusted from -20 to 0 dB
  • Temperature: allows you to choose Fahrenheit or Centigrade
  • Amp: displays the amp's ID number that you have selected by using the ID Number switch

Variable Filters: The A and B channels have separate filters. The A channels have a high-pass filter that can be adjusted from 50 to 200 Hz, and has a slope of 12 dB per octave. The B channels have a filter that can be set for low-pass, high-pass, or full-range operation. In the low-pass and high-pass modes, the B-channel filter can be adjusted from 50 to 200 Hz. In the low-pass mode, the B-channel filter has a slope of 24 dB per octave, and in the high-pass mode, the B-channel filter has a slope of 12 dB per octave.

Infrasonic Filter: The B channels have an infrasonic filter that allows the amplifier to block ultra-low frequencies that your subs can't reproduce, improving the efficiency of your speaker system. The filter is fixed at 15 Hz, and has a slope of 24 dB per octave.

Preamp Outputs: The preamp output jacks provide a convenient source for daisy-chaining an additional amplifier without running an extra set of RCA cables from the front of the vehicle to the amplifier location. These outputs provide a full-range signal.

Quiet Turn-on: This feature allows the amplifier to power up over a period of several milliseconds instead of instantaneously, protecting your speakers from thumps and other sounds that could be damaging.

Protection Circuitry: To keep the amplifier safely operating, the protection circuitry is triggered in the following situations:

  • When the internal temperature is too high for the unit to operate
  • When the unit malfunctions and a DC signal is sent to the speaker output
  • When a speaker wire may be shorted
  • When a speaker output contacts ground
  • When the voltage is outside of the operating range

Inputs and Outputs Notes

Front Panel of Amplifier:

  • BATT. (power): 0.561" screw terminal
  • GND (ground): 0.561" screw terminal
  • P.CON (remote turn-on): 0.349" screw terminal
  • Speakers: 0.349" screw terminals
  • To H/U: round 13-pin jack that lets you connect a Kenwood Excelon in-dash receiver that is compatible with the Amplifier Management System - A 13-pin DIN cable (sold separately) is required to connect the amplifier to a Kenwood head unit equipped with A.M.S. controls; item 469KNWDIN can be used to make the connection between the amplifier and an A.M.S. compatible headunit.
  • Remote: 2 S-video jacks that allow you to daisy-chain additional Kenwood Excelon amplifiers that are compatible with the Amplifier Management System

Warranty Note

Warranty Note: This amplifier comes with a 1 year warranty card, but the actual warranty is 2 years.

 

Product Reviews

Review this product

Thanks for taking the time to share your experiences about this product. Please be sure to focus your comments on the product itself. Read our Review Guidelines for more information.

Review title
* Email
Your email won't be visible
Display name
(e.g., JohnD) Your review will be signed using the display name and location
* Your location
(e.g., Charlottesville, VA)
* Your rating
Click on a star to rate the overall product on a scale of 1-5
1500 characters left * Your review
Attach a YouTube Review
Crutchfield Video Review Guidelines
  • Only submit videos that you made or are authorized to use.
  • Do not submit videos that contain music, video or visuals that are copyrighted and belong to someone else.
  • Please see our Review Guidelines for more information.
Submit the URL of your YouTube™ video review or product demonstration. e.g., http://www.youtube.com/v/o79TWHh598U
500 characters left Pros
500 characters left Cons
* Agree to Terms
By checking this box you agree your review becomes the property of Crutchfield, that you are over 18 years of age, that you own or have owned this product, and that you are located within the United States or its territories. Please see our Review Guidelines for more information. We reserve the right (but are not obligated to) review all submissions and edit or remove any review in any manner which we deem necessary. Your review should be posted within seven days.
Share this product

1-1 of 1 items Sort Results By: Date Reviewed | Rating | Helpfulness
 
5 out of 5

Kenwood has done it again!

Written By Mack, Petersburg, VA on Sunday, April 27, 2008
 
I purchased this amp to power 4 pioneer door speakers. Needless to say this amp puts out clear crisp power. It has many features that the average consumer will not even bother; however, these features allow you to really tone in your sound. The only downfall if any is, the controls for the amp are on the top. So you need to mount it so you can get/see to them. However, I will recommend this amp to all persons that are looking for quality.
4 out of 4 people found this helpful
Was this review helpful?    Yes | No
 
1-1 of 1 items
Learn more about All Car Amplifiers

Learn more about All Car Amplifiers

Car Amplifier Shopping Guide

Car Amplifier Shopping Guide

Ken Nail
10/20/2011
based on 389 ratings (17 comments)
 
If you want your music to be loud, amplifiers are definitely part of the picture. But an amp can do much more than just get other people's attention.
 
Everything About Subwoofers from A to Z

Everything About Subwoofers from A to Z

Buck Pomerantz
9/16/2011
based on 21 ratings
 
When planning a bass system, customers ask every day about where they should start. Doing it properly takes some planning and forethought, especially if you're starting small and intend to expand...
 
Video: Car Amplifier Power

Video: Car Amplifier Power

Zak Billmeier, Ken Nail
9/2/2009
based on 25 ratings (2 comments)
 
We describe the basics of deciding how much power an amplifier should have when you're trying to match it to your speakers or subwoofers.
 
Video: Car Amplifier Channels

Video: Car Amplifier Channels

Zak Billmeier, Ken Nail
11/17/2009
based on 219 ratings (7 comments)
 
One of the first steps in choosing an amplifier for your car audio system is to decide how you intend to use the amplifier, and thus how many channels it should have. This short video gives you a...
 
Video: Car Amplifier Build Quality

Video: Car Amplifier Build Quality

Zak Billmeier, Ken Nail
9/2/2009
based on 7 ratings (4 comments)
 
If you can get the same amount of power from two different amplifiers, is there any reason to buy the higher-priced amp? What are you getting for that extra money? We'll discuss the differences in...
 

Accessories

Things you'll need
Amplifier Wiring Kits
You'll need an amp wiring kit to install your new amplifier, as wiring is not included.
StreetWires ZeroNoise 3 ZN3K-04
4-gauge amplifier wiring kit with patch cable — red power/brown ground
$59.99
In Stock
 
 
Speaker Wire
Bring the music from your amp to your speakers.
StreetWires 14-gauge Ultra Cable™ Speaker Wire
Blue/copper jacket — priced per foot
$0.75
In Stock
 
 
Stereo Patch Cables
Patch cables take the music from your stereo to the amplifier. Most amp wiring kits don't include them.
StreetWires Zero Noise 7 Stereo Patch Cables
Available in 5 different lengths (19.7 feet)
$59.99
In Stock
 
 
StreetWires Zero Noise 7 4-Channel Patch Cable
Available in different lengths (16.4 feet)
$79.99
In Stock
 
 
StreetWires Zero Noise 5 4-channel Patch Cables
Available in 3 different lengths (16.4 feet)
$59.99
In Stock
 
 
StreetWires Zero Noise 5 Stereo Patch Cables
High-performance cables with superior noise rejection (16.4-foot)
$29.99
In Stock
 
 
StreetWires Zero Noise 7 Stereo Patch Cables
Available in 5 different lengths (16.4 feet)
$54.99
In Stock
 
 
StreetWires Zero Noise 7 4-Channel Patch Cable
Available in different lengths (19.7 feet)
$89.99
Low Stock
 
 
Show more items
Accessories we recommend
Firewall Bushings
If you have to drill a hole in your vehicle's firewall for your power cable, you'll need a bushing to protect the wire.
StreetWires FB4
4-gauge firewall bushing
$9.99
In Stock
 
 
Extras
Capacitors
Helps protect your car's charging system and improves power handling. Required power and ground wires not included with cap.
Tsunami LITEWAVE Series PP912UM-CAP
1.2-farad canister-style capacitor with blue LCD meter
$99.99
In Stock
 
 
Tsunami Litewave Series PP92UM-CAP
2-farad canister-style capacitor
$149.99
In Stock
 
 
Tsunami HCAP-40
40-farad amp-style hybrid capacitor
$499.99
In Stock
 
 
Installation Tools
The right tools will make the installation easier.
S&G Tool Aid 87650
Door Trim and Panel Removal Tool

Also available in:
Open Box: $6.99
$9.99
In Stock
 
 
Skewdriver Pro SPK4042
Ratcheting straight and offset screwdriver set with 40 bits (Skewdriver Pro with ratchet handle, pictured)
$49.99
In Stock
 
 
Metra Crimp Tool and Connectors
Package contains crimp tool and over 150 pieces
$19.99
Out of Stock
 
 
Scosche TK12V Car Stereo Tool Kit
The tools you need for a clean and professional car stereo installation
$19.99
In Stock
 
 
S&G Wire Cutter/Stripper Tool
Cuts and strips 12- to 22-gauge wire
$29.99
In Stock
 
 
S&G Wire Cutter/Stripper Tool
Cuts and strips 12- to 22-gauge stranded wire
$24.99
In Stock
 
 
Show more items
Test Discs
Tune your system like a pro with Test CDs.
Autosound 2000 CD Set
$69.95
In Stock
 
 
Autosound 2000 Disc Two
Image/Placement Test CD
$19.99
In Stock
 
 
Autosound 2000 Disc Four
Amplifier Optimizer Test CD
$9.99
In Stock
 
 
Autosound 2000 Disc Five
System Demonstration — Test CD
$9.99
In Stock
 
 
Autosound 2000 Disc One
Low Frequency Test CD (Disc One)
$19.99
In Stock
 
 
Autosound 2000 Disc Three
System/Environmental Test CD
$19.99
In Stock
 
 
Show more items
Professional Installation
Have your new amplifier put in by a qualified professional in your area.
InstallCard: Amp or Equalizer
Prepaid professional amplifier or EQ installation
 
 
 
Kenwood Excelon KAC-X542