Garage
Shop

See all parts that fit your 2003 Ascender

Kicker KX450.2

450 watts, 04KX450.2 KX-Series 2-Channel Amplifier

Kicker
Shop all Kicker
Product videos
highlight-star-icon

225 watts RMS x 2 channels @ 2 ohm • 3-way protection circuitry • 4 ohm mono stable / 2 ohm stereo stable

Learn more about the 04kx4502

Good news and a little bad...

This item has been discontinued

But you may be interested in the newest model that's available.

11zx4502 thumbnail

Kicker ZX450.2 (11ZX450.2)

OUR PRICE: $199.99

View item

Loading...
DMH-1800NEX main

Pioneer DMH-1800NEX

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

59
-19.05%

$339.99

List price $420.00

UTE-73BT main

Alpine UTE-73BT

Single DIN Digital Media Receiver with Bluetooth

44
-16.69%

$149.95

List price $180.00

CV15BT main

Cerwin-Vega CV15BT

Single Din Digital Media Receiver with Bluetooth

3
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

NSP65 main

NVX NSP65

540W Peak (180W RMS) 6.5" N-Series 2 Way Coaxial Car Speakers

93
-35.19%

$69.99

List price $107.99

Club 522F main

JBL Club 522F (SPKCB522FAM)

270W Peak (90W RMS) 5.25" Club Series 2 Way Coaxial 3-ohm Speakers

1
-42.29%

$74.99

List price $129.95

MVH-S322BT main

Pioneer MVH-S322BT

Single DIN Digital Media Receiver with Bluetooth and Amazon Alexa

7
-13.34%

$129.99

List price $150.00

Reference 5030cx main

Infinity Reference 5030cx (REF5030CX)

390W Peak (130W RMS) 5.25" Reference Series 2-Way 3-ohm Component Speaker System

2
-60.01%

$99.95

List price $249.95

Limited time!
DMX709S main

Kenwood eXcelon DMX709S

6.8" Double DIN Touchscreen Digital Multimedia Receiver with Bluetooth, Apple CarPlay, Android Auto (Sirius XM Ready)

39
-33.50%

$399.00

List price $600.00

Limited time!
iLX-W670-M main

Alpine iLX-W670-M

6.75" Double DIN Touchscreen Digital Multimedia Receiver with iDataLink Maestro Support, Bluetooth, Apple CarPlay and Android Auto (SiriusXM Ready)

126
-30.01%

$349.95

List price $500.00

Product Highlights


225 watts RMS x 2 channels @ 2 ohm • 3-way protection circuitry • 4 ohm mono stable / 2 ohm stereo stable

Description


Kicker brand icon

Authorized dealer

  • New 2-Channel 2004 Model
  • 150 watts RMS x 2 at 4 ohm
  • 225 watts RMS x 2 at 2 ohm
  • 450 watts RMS x 1 in bridged mode
  • remote level control included with with 20' cable
  • stereo or bridged mono output
  • 4-ohm stable in bridged mode
  • Tri-Way capable
  • 3-way protection circuitry
  • speaker- and preamp-level inputs
  • bass boost (0-18 dB) centered at 40 Hz
  • variable high-/low-pass crossover (50-200 Hz, 12 dB per octave)
  • frequency response: 20Hz - 20kHz
  • preamp outputs
  • two 30-amp fuses
  • requires 4-gauge power and ground leads and a 70-amp ANL fuse — wiring and hardware not included with amplifier
  • Dimensions: 19-1/4"W (with endcaps) x 2-9/16"H x 9-15/16"D
  • Authorized Internet Dealer
  • 1-Year Manufacturer's warranty

Product history:

Kicker 11ZX4502 thumbnail
(newest, current model)
Kicker 10ZX450.2 thumbnail
(previous model, replaced by Kicker ZX450.2 (11ZX450.2))
Kicker 08ZX450.2 thumbnail
(previous model, replaced by Kicker ZX450.2 (10ZX450.2))
Kicker ZX450.2 thumbnail
(previous model, replaced by Kicker 08ZX450.2)
Kicker KX450.2 thumbnail
(previous model, replaced by Kicker ZX450.2)

Best selling similar products

ATOM-900.2 PRO small

Deaf Bonce Apocalypse ATOM-900.2 PRO

• 350 watts x 2 channel @ 4 ohm
• 510 watts x 2 channel @ 2 ohm
• 900 watts x 2 channel @ 1 ohm
• Bridged: 1020 watts x 1 channel @ 4 ohm
• 1000 watts @ 2 ohm
• Total RMS Power: 900 watts
• Class D 1 ohm Stable 2-Channel-Channel Amplifier

$229.90

List price $229.90

MFA 2.420 small

Deaf Bonce MFA 2.420

• 420 watts x 2 channel @ 4 ohm
• 630 watts x 2 channel @ 2 ohm
• Bridged: 1260 watts x 1 channel @ 4 ohm
• Total RMS Power: 1260 watts
• Class D 2 ohm Stable 2-Channel Amplifier

$229.90

List price $229.90

ATOM-700.2 PRO small

Deaf Bonce Apocalypse ATOM-700.2 PRO

• 230 watts x 2 channel @ 4 ohm
• 480 watts x 2 channel @ 2 ohm
• 700 watts x 2 channel @ 1 ohm
• Bridged: 960 watts x 1 channel @ 4 ohm
• 14000 watts @ 2 ohm
• Total RMS Power: 700 watts
• Class D 1 ohm Stable 2-Channel-Channel Amplifier

(1)

$199.90

List price $199.90

Specifications & Details


Power Specifications - Full Range Channels
RMS Power @ 4 ohms
150 watts x 2 channel
RMS Power @ 2 ohms
225 watts x 2 channel
RMS Power @ 1 ohm
Not Stable
Bridged RMS Power
450 watts
Amplifier Specifications
Number of Channels
2-Channel
Total RMS Power Output
450 watts
Minimum Impedance Unbridged
2 ohm
Minimum Impedance Bridged
4 ohms
THD at Rated RMS Power
1%
Speaker Level Inputs
Yes
Preamp Outputs
1 pair
Built-in Crossover
Low-Pass (LP)
High-Pass (HP)
High-Pass Crossover Frequency
50 - 200 Hz
Low-Pass Crossover Frequency
50 - 200 Hz
Signal-to-Noise Ratio
95 dB
Bass Boost
0 - 18 dB
Fuse Rating
30A x 2 

Item Details


Manufacturer:

Model Number:

KX450.2

Weight:

14.10lbs

Internal SKU:

04kx4502

Internal Product ID:

2098

Product and How-to Videos


Customer Ratings & Reviews


Kicker KX450.2 thumbnail image

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



Durability
5
Value
5
Features
4
Design
4
Usability
5

Customer Reviews

Sort by:

Loading...

Great Product

This is a great amp for the price. I used this amp with two 12 inch Comp VR subs and it hit hard. I recommend this amp for the sound quality and value.

By Jason on November 23, 2005

7 found this helpful



Related Searches


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

2003 Isuzu Ascender

2023 Kia Forte

1998 Mitsubishi Eclipse

2004 Jaguar XK8

1973 Lincoln Continental

1962 Lincoln Continental

2012 Toyota Venza

1994 Honda Del Sol

1975 Triumph TR8

1994 Eagle Talon

Vehicle
Store
Delete

1999 Harley Davidson FLHTC Electra Glide Classic

2006 Harley Davidson FXST Softail Standard

2000 Harley Davidson FXST/I Softail Standard

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.