Garage
Shop

See all parts that fit your 2001 Optima

Kicker KX3 (03KX3)

3-way Electronic Crossover

Kicker
Shop all Kicker
highlight-star-icon

• 3-way 18dB/octave Active Electronic Crossover
• Remote Level Controller
• Bass Boost Variable to +18dB at 40Hz

Learn more about the 03kx3

We apologize

This item has been discontinued


Loading...
72-8105 main

Metra 72-8105

Install New Speakers in select 1993-2018 vehicles from Toyota, Kia, Subaru

2
-13.34%

$12.99

List price $14.99

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

Limited time!
KFC-1666S main

Kenwood KFC-1666S

600W Peak (60W RMS) 6.5" Sport Series 2 Way Coaxial 4-ohm Car Speakers

51
-38.75%

$49.00

List price $80.00

Description


Kicker brand icon

Authorized dealer

The KX3 is 3-way, the KX2 is 2-way, and both have a low-profile chasis for mount-anywhere flexibility. Slopes are 18dB/octave with variable frequencies, output is 5 volts, and the S-N ratio is an ultra-quiet 110dB. The KX3 adds a sub-sonic filter and remote control bass boost.

KICKER KX3 is a 3-way 18dB/octave active electronic crossover with one variable low pass and two variable high pass filters. Remote control bass boost is variable to +18dB at 40Hz. Also features 24dB/octave subsonic filter, two stereo inputs, and three stereo outputs for

  • Front and Rear High Pass Crossovers - 18dB/octave, Variable
  • Frequency (35-400Hz; 20x Multiplier Option on Front Crossover)
  • Sub Low Pass Crossover - 18dB/octave, Variable Frequency (45 250Hz)
  • Bass Boost Variable to +18dB at 40Hz
  • Remote Level Controller
  • 24dB/octave Subsonic Filter
  • Two Stereo Inputs with Parallel Input Option
  • Three Stereo Outputs (5V rms)
  • Signal-to-Noise Ratio - >110dB
  • 1-year Manufacturer warranty
2011 Kicker Authorized Online Dealer and eBay Seller

Loading...
BV850ACP main

Boss Elite BV850ACP

6.75" Double DIN Touchscreen Digital Multimedia Receiver with Bluetooth, Apple CarPlay, Android Auto with Backup Camera

5
Limited time!
46CSC654 main

Kicker CSC65 (46CSC654)

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

122
-33.36%

$79.96

List price $119.99

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

DMH-1800NEX main

Pioneer DMH-1800NEX

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

2
-16.67%

$349.99

List price $420.00

iLX-W650 main

Alpine iLX-W650

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

123
-5.72%

$329.95

List price $349.95

DMH-W4660NEX main

Pioneer DMH-W4660NEX

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

2
-20.00%

$599.99

List price $750.00

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

DB652 main

Polk Audio DB652 (DB 652)

600W Peak (200W RMS) 6.5" DB+ Series 2 Way Coaxial 4-ohm Car, Marine and Powersports Speakers

12
-9.16%

$109.00

List price $119.99

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

Best selling similar products

PNW-XN3 small

AudioControl PNW-XN3

• 3-way Passive Crossover Network
• Designed to expand a 2-way component system into a 3-way setup
• Ideal for adding a midrange driver to your 2-way component system
• Includes woofer, midrange and tweeter outputs
• Compatible with AudioControl PNW and Altitude Series speakers

(2)

$159.00

List price $179.00

XM3 small

DS18 XM3

• 3-Way active crossover with sub-level control
• Mixed input and output
• Level output knob with individual output
• Features front and rear high-pass filters
• Includes remote subwoofer level control
• Stereo or mono subwoofer mode selector

$124.95

List price $122.99

XM5 small

DS18 XM5

• 5-Way high-voltage active crossover
• (2) front and (2) rear/sub inputs
• High/mid, high/mid/low, and mid/low outputs
• Features clip indicators

$239.95

List price $287.99

HFXR small

Hifonics HFXR

• 2-Way/3-Way Electronic Crossover
• Bass boost (0-12dB @ 45Hz)
• Quasi-Parametric EQ
• 180-Degree Phase-Shift Switch
• Front/Rear Channel Frequency
• Front and Rear Adjustments
• RCA Pre-Amp Output

(17)

$59.99

List price $99.99

XOHV small

DS18 XOHV

• 2-Channel high-voltage external pre-amplifier with crossover
• Perfect for high-voltage amplifiers
• Selectable bass boost frequency
• Allows match of 2 or more amplifiers with same audio setting

$95.95

List price $115.99

Specifications & Details


Crossover Specifications
Built-in Crossover
Low-Pass (LP)
High-Pass (HP)
Built-in Bass Reconstruction
No
Signal Boost/Cut
18 dB
Max Output Level
5 volts
Frequency Response
35 - 400 Hz
Warranty and Return Policy
Parts Warranty Duration
1 year
Labor Warranty Duration
1 year
Warranty Provider
Manufacturer

Item Details


Manufacturer:

Model Number:

KX3

Weight:

3.00lbs

Internal SKU:

03kx3

Internal Product ID:

526

Customer Ratings & Reviews


Kicker KX3 (03KX3) thumbnail image

5 star
75%
4 star
25%
3 star
0%
2 star
0%
1 star
0%



Durability
4.8
Value
4.5
Features
4.9
Design
4.7
Usability
4.5

Customer Reviews

Sort by:

Loading...

a must have

This is a great crossover. I use one for competition purposes but even when not at a competition this thing works great! The sound quality that it provides to your amps is awesome. I gained a lot of decibels just by installing it. Its super easy to use and very durable.

By brian on November 3, 2006

12 found this helpful


...Changed my whole system...

I have a system i am proud of in my car. Not a competition setup, but an enviable system nonetheless. When I was in need of a new crossover, I just HAPPENED to choose the Kicker KX3 3-Way. Just by pure happenstance. Whoa! Now, i get excited about car audio products, this much is true. But I really was impressed with this crossover! Great design, fits under my passenger seat on a little routed piece of MDF I made for it; the bass control module fits on the dash of my Altima like it was born there. Just a little, black, knobby birth-mark, makin' my Fosgate S3 subs work for their vittles! The big, heavy, black cord attached to the module though was a bit unweildy, but who cares?!? The Kicker KX3 3-Way crossover is the nicest of its kind I have ever owned. I am definately hooked on their products; plus they make 'em just up the road!

By colton on September 8, 2006

11 found this helpful


Usefull thing

..Very usefull when your head unit is not so good... you can separate hi frequencies from low... usefull when you have a subwoofer, that allows you to get the hi frequencies to the speakers and give all the bass to the subwoofer !

By Mathieu on January 17, 2006

10 found this helpful


Great Xover!

My friend had a great idea to put two of each: 8", 12" and 15" subs in his suv, and the sound was horrible, and the amps built in Xovers were doing nothing. this EQ worked wonders. now the low band is seperated between the 6 different subs and it sounds so much better with each different size handling a frequency range thats suitable to its size.

By Andy on December 31, 2005

10 found this helpful


kicker midbass drivers

I have 8 in my rear doors connected to 2 kx840 amps and they hit pretty damn hard. I recommened these for anybody that doesnt have enough bass running through there subs.

By jason on August 10, 2005

11 found this helpful


gatta have this

this just made my whole system quality way better. love this crossover wont buy anything else but kicker and only buy from this site..got all the features you need all 5's

By tom on January 30, 2008

9 found this helpful


Works Great!

I purchased this x-over when the sub out on my head unit gave up, much cheaper than a good head unit replacement, and I have to say that this thing really makes a difference on the sound. It gives a lot more control and clarity to the sub channel, even better than what the head unit had. It also made a big difference in the clarity of my highs and mids. Overall I am very impressed and would recommend this to anyone looking for more control and quality in their music.

By Jeremy on July 14, 2010

8 found this helpful


Everything Great!

I'm using the KX3 a six month... I have 2 Kicker Solobaric L7 8" on my pick up. Easy Installation and Easy configuration. Products Kicker is the best.

By Silvio on January 15, 2013

8 found this helpful



XH7110 small

Clarion XH7110

850W RMS, XH Series Class GH Monoblock Car Amplifier

(1)

$265.99

List price $599.99

SPL1000F small

Scosche SPL1000F (SPLMETER)

60db-130db Compact Handheld SPL Meter with Backlit LED Display

(23)

$26.99

List price $33.95

FHS-2 small

Kicker Fuse Holder (FHS)

Single AFS, Mini-ANL Fuse Holder with 1/0 - 8 Gauge Input & Output

(8)

$28.99

List price $39.99

09-13-TOYOTA-COROLLA-KSPKG small

Kicker CS Series Factory Speaker Replacement Package

Fits select 2009-2013 Corolla

(175)

$209.55

List price $324.95

KDC-X790 small

Kenwood eXcelon KDC-X790

CD/MP3/WMA Receiver with Remote

(1)

$199.99

List price $369.99

CS-V527 small

JVC CS-V527

5-1/4" 2-Way DRVN Series Coaxial Speakers

(7)

$26.97

List price $59.95

611a small

Infinity 611A

Class D Monoblock Amplifier

(1)

$169.99

List price $299.99

db690 small

Polk Audio db690

db Series 6" x 9" 3-way Speakers (db 690)

(2)

$99.99

List price $179.99

CXX1604 small

Boss CXX1604

800W Class AB 4-Channel Chaos EXXtreme Series Amplifier

(1)

$64.95

List price $349.99

Related Searches


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

2001 Kia Optima

1996 Ford Thunderbird

1996 Dodge Stealth

1983 Dodge 600

2012 Volvo C70

2002 BMW X5

1984 Ford Thunderbird

2001 Kia Sephia

2011 Ram Dakota

1985 Buick Skyhawk

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.