Garage
Shop

See all parts that fit your 2003 Ranger

SPL FX2-420

420W Max, FX Series 2-Channel Amplifier

SPL
Shop all SPL
Product videos
highlight-star-icon

• 420W Max, FX Series 2-Channel • 4 ohm: 80 watts x 2 chan • 2 ohm: 95 watts x 2 chan • Bridged, @ 4 ohm: 190 watts x 1 chan • S/N Ratio: 98dB • THD: 0.02%

Learn more about the fx2420

We apologize

This item has been discontinued

NVX - Worth the Envy - Direct to Consumer Car Audio

Loading...
70-1771 main

Metra 70-1771

Install a New Car Stereo in select 1998-2011 vehicles from Ford, Mazda, Mercury

51
95-5817 main

Metra 95-5817 Dash Kit

Install a new Double-DIN car stereo in select 1995-2011 vehicles from Ford, Mercury, Mazda

45
-21.92%

$17.95

List price $22.99

72-5600 main

Metra 72-5600

Install New Speakers in select 1993-2017 vehicles from Ford, Mazda, Mercury

109
-33.36%

$9.99

List price $14.99

FM-K552 main

American International FM-K552

Single DIN or Double DIN Stereo Dash Kit for select 1995-2011 vehicles from Ford, Lincoln, Mazda

21
-55.03%

$8.99

List price $19.99

FD16B main

Scosche FD16B Wiring Harness

Install a new car stereo in select 1998-2011 vehicles from Ford, Mercury, Mazda

225
UTE-73BT main

Alpine UTE-73BT

Single DIN Digital Media Receiver with Bluetooth

44
-16.69%

$149.95

List price $180.00

SA68 main

Scosche SA68

Add 5-1/4" or 6-1/2" Speakers to Factory 6" x 8" Mounting Locations for select 1950-2025 vehicles from Ford, Mercury, Mazda

39
-46.70%

$7.99

List price $14.99

Limited time!
XAV-AX8500 main

Sony XAV-AX8500

10.1" Single DIN Floating Touchscreen Digital Multimedia Receiver with Bluetooth, Wireless Apple CarPlay, and Wired Android Auto (SiriusXM Ready)

2
-20.20%

$798.00

List price $999.99

R165X3 main

Rockford Fosgate Prime R165X3

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

154
Limited time!
DMH-241EX main

Pioneer DMH-241EX

6.2" Double DIN Touchscreen Digital Multimedia Receiver with Bluetooth and Built-in Alexa

20
-35.00%

$194.99

List price $300.00

Product Highlights


• 420W Max, FX Series 2-Channel • 4 ohm: 80 watts x 2 chan • 2 ohm: 95 watts x 2 chan • Bridged, @ 4 ohm: 190 watts x 1 chan • S/N Ratio: 98dB • THD: 0.02%

Description


SPL brand icon

Authorized dealer

  • SPL FX2-420 420W Max, FX Series 2-Channel Amplifier
  • RMS Power Rating:
    • 4 ohm: 80 watts x 2 chan.
    • 2 ohm: 95 watts x 2 chan.
    • Bridged, @ 4 ohm: 190 watts x 1 chan.
  • Full Mosfet Power Supply
  • PWM Circuitry
  • Full Selectable Crossover Hi/Full/Low
  • Three Way Protection Circuit
  • 2 Ohm Stable Stereo
  • Tri-Mode Capable
  • Variable Low Pass 40 Hz-250 Hz
  • Variable Hi Pass 40 Hz-250 Hz
  • Variable 18 dB Bass Boost @ 40 Hz
  • Frequency Response: 10 Hz to 30 KHz
  • S/N Ratio: 98dB
  • THD: 0.02%
  • System Distress Indicator
  • Platinum Plated RCA Connectors
  • Line Output
  • High/Low Level Inputs with Floating Ground
  • Dimensions: 7.2" L x 11.1" W x 2.3" H
  • 4-gauge power and ground leads recommended. Contact us for information regarding a discount on a select amplifier kit when purchased together.
  • 1-year Manufacturer's warranty

Loading...
REF507CF_2_MET-825601_2 main

2 Infinity REF507CF (INFSPKRF507CFUS) w/ Adapter Plates

390W Peak (130W RMS) 5.25" Reference Series 2-way 3-ohm Component Speaker System with Speaker Adapter Plates

3
-12.14%

$477.88

List price $543.88

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

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

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

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

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

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

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

R2-200X2 small

Rockford Fosgate Prime R2 R2-200X2

• 50 watts x 2 channel @ 4 ohm
• 100 watts x 2 channel @ 2 ohm
• Bridged: 200 watts x 1 channel @ 4 ohm
• Total RMS Power: 200 watts
• Class D 2 ohm Stable 2-Channel Amplifier

(2)

$239.99

List price $239.99

VADM2 small

NVX VADM2 v2 (VADM2v2)

• 200 watts x 2 channel @ 4 ohm
• 300 watts x 2 channel @ 2 ohm
• Bridged: 600 watts x 1 channel @ 4 ohm
• Total RMS Power: 600 watts
• Class D 2 ohm Stable 2-Channel Amplifier

(17)

$199.99

List price $239.99

ION700.2D small

DS18 ION700.2D

• 240 watts x 2 channel @ 4 ohm
• 350 watts x 2 channel @ 2 ohm
• Bridged: 700 watts x 1 channel @ 4 ohm
• Total RMS Power: 700 watts
• Class D 2 ohm Stable 2-Channel-Channel Amplifier

$299.95

List price $359.99

MFA 2.520 small

Deaf Bonce Machete MFA 2.520

• 520 watts x 2 channel @ 4 ohm
• 750 watts x 2 channel @ 2 ohm
• Bridged: 1500 watts x 1 channel @ 4 ohm
• Total RMS Power: 1500 watts
• Class D 2 ohm Stable 2-Channel-Channel Amplifier

(2)

$239.90

List price $239.90

H400.2D small

Cerwin-Vega H400.2D

• 80 watts x 2 channel @ 4 ohm
• 125 watts x 2 channel @ 2 ohm
• Bridged: 290 watts x 1 channel @ 4 ohm
• Total RMS Power: 400 watts
• Class D 1 ohm Stable 2-Channel Amplifier

$239.99

List price $287.99

NBA201 small

NVX NBA201

• 200 watts x 2 channel @ 4 ohm
• 350 watts x 2 channel @ 2 ohm
• Bridged: 700 watts x 1 channel @ 4 ohm
• Total RMS Power: 700 watts
• Class A/B 2 ohm Stable 2-Channel Amplifier

(11)

$99.99

List price $249.99

GP-2000.2 small

Crunch GP-2000.2

• 500 watts x 2 channel @ 4 ohm
• 1000 watts x 2 channel @ 2 ohm
• Bridged: 2000 watts x 1 channel @ 4 ohm
• Total Peak Power: 2000 watts
• Class A/B 2 ohm Stable 2-Channel Amplifier

$74.99

List price $119.99

Specifications & Details


Power Specifications - Full Range Channels
RMS Power @ 4 ohms
80 watts x 2 channel
RMS Power @ 2 ohms
95 watts x 2 channel
RMS Power @ 1 ohm
Not Stable
Bridged RMS Power
190 watts x 1 channel
Amplifier Specifications
Amplifier Class
A/B
Number of Channels
2-Channel
Total Peak Power Output
420 watts
Total RMS Power Output
190 watts
Maximum Input Gauge Size
4 AWG
Minimum Impedance Unbridged
2 ohm
Minimum Impedance Bridged
4 ohms
THD at Rated RMS Power
.02%
Speaker Level Inputs
Yes
Preamp Outputs
1 pair
Built-in Crossover
Low-Pass (LP)
High-Pass (HP)
Full (AP)
High-Pass Crossover Frequency
40 - 250 Hz
Low-Pass Crossover Frequency
40 - 250 Hz
Subsonic Filter
n/a
Signal-to-Noise Ratio
98 dB
Bass Boost
0 - 18 dB
Remote bass/level controller
No
Fuse Rating
20A x 1 
Warranty and Return Policy
Parts Warranty Duration
1 year
Labor Warranty Duration
1 year
Warranty Provider
Manufacturer

Item Details


Manufacturer:

SPL

Model Number:

FX2-420

Weight:

6.40lbs

Internal SKU:

fx2420

Internal Product ID:

9166

Product and How-to Videos


Customer Ratings & Reviews


SPL FX2-420 thumbnail image

5 star
0%
4 star
50%
3 star
25%
2 star
0%
1 star
25%



Durability
3.3
Value
3.8
Features
2.8
Design
3.8
Usability
4.3

Customer Reviews

Sort by:

Loading...

Great amp for the cost

This amp holds up very well for being so affordable. Even though it is not CEA compliant it seems to put out somewhere close to its RMS ratings. Great amp.

By Joe on December 24, 2009

22 found this helpful


not as great as it seems

I bought this amp because it was perfect for my speaker set up. It ran nice for about 6 months then just stopped working one day. since i threw away the box i couldn't return it to sonic which sucks but i guess i got what i paid for

By Tony on September 30, 2010

14 found this helpful


Very good product

I bought this amp and an open box Rockford Fosgate 12" for my first system. I bridged the two channels, put it in a sealed box in the back of my blazer and couldn't have been happier. Obviously you can't achieve ground shaking bass with this little amp but for the price, it put enough bump in my truck to make me smile from ear to ear while driving back and forth to school. Well it didn't last long, some lowlife stole my BUDGET system on the first week of school. Now saving for an L7. I would definitely buy another SPL amp, they're great would recommend to anybody without the money for JL or Kicker. oh and my two cents about theives, REBAR and a MIG will keep your box safe as long as you don't care about cosmetics in the trunk,

By Mikey on February 4, 2011

14 found this helpful


beware, doesn't reach RMS

Well after reading the other reviews for this product. I was optimistic because it was the only amp at a reasonable price I found that could put out 80 watt RMS at 4 ohm per channel. This amp was for a set of TS-D6902R (RMS at 80 watts), which in no way are a bad set of 6x9's. So I wired everything up, and to get any volume at all I had to set the gain to max. Any time any bass hit the speakers would distort like crazy so I set the high pass filter. This product is suppose to have a range of 40-250hz... 40 hz sounded identical to the 250 cutoff. It filtered zero bass out. So the crossover is extremely ineffective. Then i started to suspect power, so I pulled out my multi-meter to see how much power the amp put out. I used a test tone of 60hz at full volume on the system. It was only putting out 10V per channel at 4 ohms. This is only 20 watts. It should have been pumping out 80 watts RMS, but instead only 20. I checked the bridged power output and found it only putting out about 125 watts, way short of the 180 watt RMS. I have replaced this amp with a Dual xpa2500 (which is CERTIFIED for 50watt RMS), and the speakers sing, so I know it was the SPL amp that was way under powering the 6x9's. Long story short. avoid this amp, buy one that is certified by CES. It puts out the power of a head-unit. This thing has driven me crazy...it I hadn't thrown away the box I would be returning it.

By Patrick on May 14, 2011

11 found this helpful




M502 small

Clarion M502

Marine Digital Media Stereo w/ Built-in Bluetooth, Pandora Support & Rear USB

(12)

$109.99

List price $299.99

X-D10 small

DLS X-D10

590W RMS X-Program Monoblock Class D Car Audio Amplifier

$199.95

List price $479.99

IPC-009 small

Eclipse IPC-009

iPod Connection Cable Adapter for Eclipse CD1200G

(16)

$10.99

List price $34.99

GLA2-600 small

SPL GLA2-600

600W Max 2-Channel Gorilla Series Class AB Car Amplifier

$51.95

List price $159.95

R1G-10 small

Rockford Fosgate Prime R1G-10

10" Prime R1 Stamped Mesh Grille Insert for R1 10" Subwoofer Trim Rings

(1)

$23.99

List price $31.99

L-3CSC small

Power Acoustik L-3CSC

License Plate Mounted Rear View Color Camera w/ Object Sensors & I.R. LEDs

(3)

$64.95

List price $219.95

CX1100M small

Boss CX1100M

1100W Max, Monoblock Chaos Exxtreme Series Class AB Car Amplifier

(53)

$64.99

List price $169.99

VIBE1500D small

Lanzar VIBE1500D

$249.99

List price $559.99

LCQ-1 BlackBlue small

AudioControl LCQ-1 (Black)

6-Channel EQ Signal Processor with AccuBASS

(1)

$289.00

List price $289.00

Related Searches


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

2003 Ford Ranger

2011 Dodge Challenger

2018 Mazda 3

2018 Mazda 3

1983 Buick Skyhawk

2003 Dodge Durango

2009 Chrysler Sebring

2024 Jeep Gladiator

2002 Daewoo Lanos

2008 MINI Cooper

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.