Garage
Shop

See all parts that fit your 2003 Eclipse

Kenwood eXcelon XR-4S

Reference Fit Class D 4-Channel Amplifier

Kenwood
Shop all Kenwood
Product videos
highlight-star-icon

Reference Fit Class D Monoblock Car Amplifier • 120 Watts RMS X 4 Chan. @ 4 Ohm • 150 Watts RMS X 4 Chan. @ 2 Ohm • 300 Watts x 4 Chan Max • Heavy Duty Heatsink With Cooling Fan • Digital Amplifier • Dual Power Supply

Learn more about the xr4s

We apologize

This item has been discontinued

NVX - Worth the Envy - Direct to Consumer Car Audio

Loading...
72-8104 main

Metra 72-8104

Install New Speakers in select 1990-2024 vehicles from Toyota, Subaru, Mitsubishi

87
-20.01%

$11.99

List price $14.99

Limited time!
46CSC654 main

Kicker CSC65 (46CSC654)

600W Peak (200W RMS) 6.5” CS Series 2 Way Coaxial 4-ohm Speakers

124
-33.36%

$79.96

List price $119.99

XED62 main

Cerwin-Vega XED62

600W Peak (70W RMS) 6.5" XED Series 2-Way Coaxial 4-ohm Speakers

15
-16.67%

$49.99

List price $59.99

R165X3 main

Rockford Fosgate Prime R165X3

180W Peak (90W RMS) 6.5" Prime Series 3 Way Coaxial 4-ohm Speakers

154
XRM59BT main

Dual XRM59BT

Single DIN Digital Media Receiver with Bluetooth, USB and Aux

28
P1692 main

Rockford Fosgate Punch P1 P1692

300W Peak (150W RMS) 6x9" Punch Series 2 Way Coaxial 4-ohm Speakers

82
KDC-X705 main

Kenwood eXcelon KDC-X705

Single DIN CD Multimedia Receiver with Bluetooth and Built-in Alexa (Sirius XM Ready)

4
-18.21%

$229.00

List price $280.00

MPR2110 main

Jensen MPR2110

Single DIN Digital Media Receiver with Bluetooth

13
43DSC69304 main

Kicker DSC6930 (43DSC69304)

720W Peak (180W RMS) 6x9” DS Series 3-way 4-ohm Coaxial Car Speakers with Integrated Midrange

33
-14.29%

$119.99

List price $139.99

H7694 main

Cerwin Vega H7694

800W Peak (150W RMS) 6x9" HED Series 4-Way Coaxial 4-ohm Speakers

32
-25.93%

$79.99

List price $107.99

Product Highlights


Reference Fit Class D Monoblock Car Amplifier • 120 Watts RMS X 4 Chan. @ 4 Ohm • 150 Watts RMS X 4 Chan. @ 2 Ohm • 300 Watts x 4 Chan Max • Heavy Duty Heatsink With Cooling Fan • Digital Amplifier • Dual Power Supply

Description


Kenwood brand icon

Authorized dealer

The eXcelon Reference Fit amplifiers may fool some, but those who know Kenwood understand the power behind the aluminum plating. These amplifiers have a small footprint allowing installation in even the tightest of locations. For those who need a truly custom installation the top plate can be removed and replaced with a creation of your choice. For such a small size these amplifiers put out a huge amount of power, just don't let it go to waste

  • Reference Fit Class D Car Amplifier
  • RMS Power Rating:
    • 4 ohm: 120 watts x 4 chan.
    • 2 ohm: 150 watts x 4 chan.
    • Bridged, 4 ohm: 300 watts x 2 chan.
  • Max power output: 300 watts x 4 chan.
  • Digital amplifier technology with dual MOSFET switching power supply
  • Remote bass level input (Kenwood KAC-X1D remote level control sold separately)
  • LED power indicators
  • 4/3/2 Channel operation
  • Line inputs
  • AB/A Channel input selector with independent gain adjustment
  • Single side exposure of terminals for multi-installation
  • 3-Way System Protection circuitry (thermal, overload, and speaker short protection)
  • Heavy duty aluminum alloy heatsink with built-in cooling fan for extreme heat dissipation
  • Removable top plate allows for custom fabricators to easily create their own plates
  • Gold-plated RCA level inputs
  • Gold-plated screw terminals
  • Variable high-pass filter (Low Range: 50-200 Hz, 12 dB/octave | High Range: 2,500-10,000 Hz, 12 dB/octave)
  • Variable low-pass filter (Low Range: 50-200 Hz, 12 dB/octave | High Range: 2,500-10,000 Hz, 12 dB/octave)
  • Infrasonic Filter (24 dB at 15-40 Hz)
  • CEA-2006 compliant amplifier
  • Frequency response: 20-20,000 Hz
  • Dimensions: 9-1/4"W x 2-1/16"H x 7-9/16"D
  • 4-gauge power and ground wiring is required for installation. Contact us for information regarding a discount on select amplifier kits when purchased together with this amplifier.
  • 2-year Sonic Electronix warranty

Loading...
Limited time!
46CSC654 main

Kicker CSC65 (46CSC654)

600W Peak (200W RMS) 6.5” CS Series 2 Way Coaxial 4-ohm Speakers

124
-33.36%

$79.96

List price $119.99

DMH-1800NEX main

Pioneer DMH-1800NEX

6.8" Double DIN Touchscreen Digital Multimedia Receiver with Bluetooth, Apple CarPlay, Android Auto, and SiriusXM Ready

3
-19.05%

$339.99

List price $420.00

Limited time!
46CSC6934 main

Kicker CSC693 (46CSC6934)

900W Peak (300W RMS) 6x9” CS Series 3 Way Coaxial 4-ohm Speakers with Integrated Midrange Speakers

40
-30.02%

$111.96

List price $159.99

UTE-73BT main

Alpine UTE-73BT

Single DIN Digital Media Receiver with Bluetooth

44
-16.69%

$149.95

List price $180.00

Limited time!
Club 622 main

JBL Club 622

360W Peak (120W RMS) 6.5" Club Series 2-way Coaxial 3-ohm Speakers

5
-28.58%

$99.95

List price $139.95

CV15BT main

Cerwin-Vega CV15BT

Single Din Digital Media Receiver with Bluetooth

3
43DSC6504 main

Kicker DSC650 (43DSC6504)

480W Peak (120W RMS) 6.5” DS Series 2-way 4-ohm Coaxial Car Speakers (DSC6504)

28
-10.53%

$84.99

List price $94.99

Limited time!
DMH-W3050NEX main

Pioneer DMH-W3050NEX

6.8" Double DIN Touchscreen Digital Multimedia Receiver with Bluetooth, Wireless Apple CarPlay and Android Auto, and Built-in Alexa (Sirius XM Ready)

1
-24.20%

$469.99

List price $620.00

SXE-6926S main

Alpine SXE-6926S

280W Peak (90W RMS) 6x9” SXE Series 2-way 4-ohm Coaxial Speakers

13
-20.84%

$56.99

List price $71.99

XED62 main

Cerwin-Vega XED62

600W Peak (70W RMS) 6.5" XED Series 2-Way Coaxial 4-ohm Speakers

15
-16.67%

$49.99

List price $59.99


Best selling similar products

VADM4v2 small

NVX VADM4 v2 (VADM4v2)

• 80 watts x 4 channel @ 4 ohm
• 125 watts x 4 channel @ 2 ohm
• Bridged: 250 watts x 2 channel @ 4 ohm
• Total RMS Power: 500 watts
• Class D 2 ohm Stable 4-Channel Amplifier

(41)

$209.99

List price $239.99

NDA6004 small

NVX NDA6004

• 100 watts x 4 channel @ 4 ohm
• 160 watts x 4 channel @ 2 ohm
• Bridged: 320 watts x 2 channel @ 4 ohm
• Total RMS Power: 600 watts
• Class D 2 ohm Stable 4-Channel Amplifier

(14)

$159.99

List price $215.99

VAD10004v2 small

NVX VAD10004 v2 (VAD10004v2)

• 150 watts x 4 channel @ 4 ohm
• 250 watts x 4 channel @ 2 ohm
• Bridged: 500 watts x 2 channel @ 4 ohm
• Total RMS Power: 1000 watts
• Class D 2 ohm Stable 4-Channel Amplifier

(25)

$279.99

List price $335.99

RD400/4 small

JL Audio RD400/4

• 75 watts x 4 channel @ 4 ohm
• 100 watts x 4 channel @ 2 ohm
• Bridged: 200 watts x 2 channel @ 4 ohm
• Total RMS Power: 400 watts
• Class D 2 ohm Stable 4-Channel Amplifier

(28)

$304.99

List price $379.99

MFA 4.220 small

Deaf Bonce MFA 4.220

• 220 watts x 4 channel @ 4 ohm
• 330 watts x 4 channel @ 2 ohm
• Bridged: 660 watts x 2 channel @ 4 ohm
• Total RMS Power: 1320 watts
• Class D 2 ohm Stable 4-Channel Amplifier

$289.90

List price $289.90

JD400/4 small

JL Audio JD400/4

• 75 watts x 4 channel @ 4 ohm
• 100 watts x 4 channel @ 2 ohm
• Bridged: 200 watts x 2 channel @ 4 ohm
• Total RMS Power: 400 watts
• Class D 2 ohm Stable 4-Channel Amplifier

(34)

$299.99

List price $299.99

MFA 4.180 small

Deaf Bonce MFA 4.180

• 180 watts x 4 channel @ 4 ohm
• 270 watts x 4 channel @ 2 ohm
• Bridged: 540 watts x 2 channel @ 4 ohm
• Total RMS Power: 1080 watts
• Class D 2 ohm Stable 4-Channel Amplifier

$259.90

List price $259.90

MVPA4 small

NVX MVPA4

• 100 watts x 4 channel @ 4 ohm
• 150 watts x 4 channel @ 2 ohm
• Bridged: 300 watts x 2 channel @ 4 ohm
• Total RMS Power: 600 watts
• Class D 2 ohm Stable 4-Channel Amplifier

(70)

$279.99

List price $383.99

MDX2000.4 2 Ohm small

PRV Audio MDX2000.4 2 Ohm

• 330 watts x 4 channel @ 4 ohm
• 500 watts x 4 channel @ 2 ohm
• Bridged: 1000 watts x 2 channel @ 4 ohm
• Total RMS Power: 2000 watts
• Class D 2 ohm Stable 4-Channel Amplifier

$219.91

List price $274.89

AP200/4BT small

JL Audio AP200/4BT

• 40 watts x 4 channel @ 4 ohm
• 50 watts x 4 channel @ 2 ohm
• Bridged: 100 watts x 4 channel @ 4 ohm
• Total RMS Power: 200 watts
• Class D 2 ohm Stable 4-Channel Amplifier

$549.99

List price $659.99

Specifications & Details


Power Specifications - Full Range Channels
RMS Power @ 4 ohms
120 watts x 4 channel
RMS Power @ 2 ohms
150 watts x 4 channel
Bridged RMS Power
300 watts x 2 channel
Amplifier Specifications
Amplifier Class
D
Number of Channels
4-Channel
Total Peak Power Output
1200 watts
Total RMS Power Output
600 watts
Maximum Input Gauge Size
4 AWG
Minimum Impedance Unbridged
2 ohm
Minimum Impedance Bridged
4 ohms
THD at Rated RMS Power
1%
Speaker Level Inputs
No
Preamp Outputs
No
Built-in Crossover
Low-Pass (LP)
High-Pass (HP)
High-Pass Crossover Frequency
2,500 - 10,000 Hz
Low-Pass Crossover Frequency
50 - 200 Hz
Signal-to-Noise Ratio
73 dB
Remote bass/level controller
No
Fuse Rating
30A x 2 
Warranty and Return Policy
Parts Warranty Duration
2 years
Labor Warranty Duration
2 years
Warranty Provider
Sonic Electronix

Item Details


Manufacturer:

Model Number:

XR-4S

Weight:

7.50lbs

Internal SKU:

xr4s

Internal Product ID:

18457

Product and How-to Videos


Customer Ratings & Reviews


Kenwood eXcelon XR-4S thumbnail image

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



Durability
4.7
Value
4.7
Features
4.9
Design
4.7
Usability
4.9

Customer Reviews

Sort by:

Loading...

freakin awesome ! ! !

This amp is amazing. I have it hooked up to 4x 5-way kenwood 6x9's and you wouldn't believe the clarity, the base and the volume. This amp is 120 rms per channel and my speakers are 500 watt max 120 rms per speaker so it goes together perfect. I'm adding another kenwood amp and 2x 12's by kenwood. My deck is also kenwood. kenwood rocks! plus this amp is 1200 watts and its half the size of my freinds amp which is only 400 watts. Definately get this amp! You wont regret it

By tommy on September 15, 2011

24 found this helpful


whoa its so tiny

I use this amp for its 4 channel highs,and if you listen to Alice in Chains you understand the importance of clarity and baby this is as good as it gets for now

By mobile mechanic on October 6, 2010

21 found this helpful


Very nice and compact amp!

Im using this with 4 Alpine TypeR speakers. Its nice and compact, and has a nice punch to the sound.

By Taimur on May 13, 2010

21 found this helpful


This is a great little amp. Period.

This is a great little amp. Period. It is well made, just as nice as the Alpine PDX, and the Pioneer Premier ICE, only this one is even more compact. Sound is extremely clear and spacious, whatever Kenwood did they did it right. The XR-4S does not sound like a class D amplifier at all; no audible distortion to speak of.

Things to like: nice feel, heavy, has a cooling fan, full range class D, simple and easy set up. Things to not like: crossover is not variable full range, it can either be set for highs (bi amp to tweeters) or lows (bi amp to woofers or tri amped to subwoofer), or off for full range sound. Would like a little more control here, but I have some flexiblity through the tuning capabilities of my Alpine head unit, so this is not a problem for me.

The amp has two side vents covered by silver grills for flow through ventilation, on the front side where the crossover and input controls are located is also where the fan is located. The unit runs very cool, so far I have really pushed the amp and have not see the fan kick on or the high temperature light come on.

I am using it to power two front Kenwood component 6 1/2 and two rear Blaupunkt component 6 1/2. I have a separate subwoofer and amp.

The amplifier is so small and compact it looks like a toy until you pick it up. It is supposed to weight seven pounds, it makes my old Hifonics 50 watts x 4 seem like a toy. But this Kenwood if good for 120 watts x 4.

This is in a Honda S2000 where space is at a premium.

By Chris on May 12, 2009

20 found this helpful


great 4 channel amp

So I love this amp its small and packs a lot of power. The only problem I have with it is I find it hard to get the wires in the hole because they are set at an awkward angle. My amp is in a tight spot which makes it more difficult. But its a small thing.

By cory on August 16, 2010

19 found this helpful


Amp for my scooter(harley)

So far this amp has worked out literally better than expected! I made a bad 1st purchase, and the folks at Sonic suggested we try this unit, and it really rocks w/ the 6 speaker JBL setup. This has excellent sound , great low end lots of power and not a price that causes you to make payments to buy it!

By nscaleking on November 5, 2009

20 found this helpful


XR-4S

This amp is one word... AWESOME

I have this installed in my 05' Ford Explorer, under the front passenger seat. Currently I'm running 75w RMS Kenwood 5x7's in the doors, and they sound crystal clear turned up about 80% volume, when playing against my RE SXX sub powered by an XR-1S. Soon I will be installing 6.5" Hifonic's Zues Components that will be able to handle about 100W RMS, so I can't wait to see how well this amp will push these speakers @ optimal power range...

As I mentioned above, I was impressed enough with the XR-4S, that I ended up also buying a XR-1S to power my 1000W RMS 10" sub.

A friend of mine liked how clean, and clear my truck sounded, that he is in the process of building his stereo for his 06' F150. He ended up going with a XR-4S amp as well.


great design, price, and power !

By DC on March 8, 2011

18 found this helpful


Good sound, convenient size

I purchased this particular amplifier for it's size, which offered convenient installation in the boot of a Porsche 911. Instructions for installation are clear. I've had no issues at all with the amplifier. Sound quality is good and the amp has sufficient power for my use. It is essential to do the installation with automotive-grade RCA cables, or you'll be hearing electrical noise from components like the alternator and electric fuel pump. I recommend this product for situations where sound and size matter.

By Brad on October 19, 2009

17 found this helpful




PROP-0G-20BK small

Absolute PROP-0G-20BK (Black)

20 ft. (6 Meters) of 0 Gauge Power/Ground Cable

$49.99

List price $129.99

CSA-2 small

Bazooka Marine CSA-2

100W, 2-Channel Marine Amplifier for Bazooka Audio Input Control Systems

$96.99

List price $149.99

BT1000MK small

Biketronics BT1000MK

Radio Mounting Kit for Select 1996-2013 Touring Bikes

$47.99

List price $71.98

MEX-BT2800 small

Sony MEX-BT2800

In-Dash CD, MP3, WMA, AM/FM Receiver with Built-in Hands-Free Bluetooth and Front Aux-in

(6)

$106.99

List price $159.99

AIR DAC IWIRELESS small

NuForce Air DAC iWireless

Wireless DAC with iTX iPod/iPad/iPhone Audio Streaming Transmitter and Air DAC Receiver

(2)

$99.99

List price $199.00

MEX-BT5700U small

Sony MEX-BT5700U

In-Dash CD, MP3, WMA, AAC Receiver with Built-in Bluetooth, Front Panel USB and Aux Input

(20)

$209.99

List price $299.99

Related Searches


Save up to 10 different vehicles in your garage
Vehicle
Store
Delete

2003 Mitsubishi Eclipse

2005 GMC Yukon

2014 Cadillac XTS

Add vehicle Clear all vehicles
Where to find vehicle info
Are you sure you want to clear your garage?
This action cannot be undone. Confirm
This page was not designed for products.
If you continue, you will be redirected to a category customized for your vehicle. Continue
Loading...
Identify your vehicle and submodel details
  • Owner's manual
  • Vehicle's insurance card
  • Vehicle registration
  • Vehicle produced after 2005: Inside driver's side door
  • Vehicle produced before 2005: Rear passenger doorjamb, glove box, center console, or engine compartment
Car Info Side Door Icon
Vehicle Registration Icon
Vehicle Insurance Icon

Modern vehicles often require specific brackets, wiring harnesses, and mounting solutions. A fit guide ensures:

  • You see only parts engineered for your exact vehicle
  • You avoid incompatible radios, speakers, or wiring
  • Installation is smoother, faster, and frustration-free
  • You get the correct accessories the first time

Whether you're replacing a factory stereo or upgrading your entire audio system, the Fit Finder eliminates uncertainty.