Garage
Shop

See all parts that fit your 2004 Thunderbird

Soundstream ST4.1200D

1200W Max (600W RMS) Micro-Footprint, Stealth Series Class-D 4-Channel 2 Ohm Stable Amplifier

highlight-star-icon

• 100 Watts RMS x 4 @ 4 ohm
• 150 Watts RMS x 4 @ 2 ohm
• 300 Watts RMS x 2 @ 4 ohm, bridged
• Total Peak Power: 1200 Watts
• High and low pass filters
• Small Footprint Makes for Easy Installation
• Aluminum Heatsink
• 3" W x 7.75" L x 1.5" H

Learn more about the st41200d

We apologize

This item has been discontinued

NVX - Worth the Envy - Direct to Consumer Car Audio

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

Description


Soundstream brand icon

Authorized dealer

General Features:

  • Soundstream Stealth Series ST4.1200D
  • Class-D Full Range 2-Ohm Stable 4-Channel Amplifier
  • Small footprint, big power for your car, UTV, and all kinds of other applications
  • RMS Power Rating:
    • 4 ohm: 100 watts x 4 chan.
    • 2 ohm: 150 watts x 4 chan.
    • 1 ohm: ------------N/A------------
    • Bridged, 4 ohm: 300 watts x 2 chan.
  • Total power output: 1,200watts
  • Pulse Width Modulated MOSFET power supply
  • LED power (green) and protect (red) indicators
  • Soft start turn-on
  • 4/2 channel operation
  • Speaker-level (high-level) inputs
  • Preamp RCA outputs to daisy chain multiple amps
  • 3-way protection circuitry (thermal, overload, and speaker short protection)
  • Dual speaker terminals simplify the hookup of multiple speakers
  • Heavy duty aluminum alloy heat-sink
  • Input sensitivity:
    • High level: 200mV-12V
  • Variable high-pass filter: 50 - 500 Hz, 12 dB/octave
  • Variable low-pass filter: 50 - 500 Hz, 12 dB/octave
  • Fuse Rating: 20 A x 2
  • Power and ground wire included in wiring harness with Molex connector
  • Dimensions: 3"W x 7.75"L x 1.5"H
  • Authorized Internet Dealer
  • 1-year Manufacturer's Warranty

DISCLAIMER: Images on the product's box shows a remote level control knob. This amplifier DOES NOT include one, nor has an input for one


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
100 watts x 4 channel
RMS Power @ 2 ohms
150 watts x 4 channel
Bridged RMS Power
300 watts x 2 channel
Power Specifications - Full Range Channels
Peak Power @ 4 ohms
200 watts x 4 channel
Peak Power @ 2 ohms
300 watts x 4 channel
Bridged Peak/Max Power
300 watts x 2 channel
Amplifier Specifications
Series
Stealth Series
Amplifier Class
D
Number of Channels
4-Channel
Total Peak Power Output
1200 watts
Total RMS Power Output
600 watts
Maximum Input Gauge Size
10 AWG
Minimum Impedance Unbridged
2 ohm
Minimum Impedance Bridged
4 ohms
Speaker Level Inputs
Yes - with included adapter
Preamp Outputs
1 pair
Built-in Crossover
Low-Pass (LP)
High-Pass (HP)
High-Pass Crossover Frequency
50 - 500 Hz
Low-Pass Crossover Frequency
50 - 500 Hz
Remote bass/level controller
No
Fuse Rating
20A x 2 
Total Fuse Rating
40
Strappable
No
Sonic Certified Amplifier
Not Tested
Amp Bluetooth Connectivity
No
Hi-Res Certified
No
What is in the box?
Paperwork
User manual
Brand sticker/decal
WITB: Amplifiers
Amplifier
Mounting screws (4)
High-level input wiring harness w/ molex connectors (2)
Other Accessory #1
Power/ground molex connector
Other Accessory #2
Bridging molex connector
Other Accessory #3
RCA Molex connectors (2)
Warranty and Return Policy
Parts Warranty Duration
1 year
Labor Warranty Duration
1 year
Warranty Provider
Manufacturer

Item Details


Manufacturer:

Model Number:

ST4.1200D

Weight:

1.90lbs

Internal SKU:

st41200d

Internal Product ID:

127449

Customer Ratings & Reviews


Soundstream ST4.1200D thumbnail image

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



Durability
4.5
Value
5
Features
5
Design
4.5
Usability
4.5

Customer Reviews

Sort by:

Loading...

Small, clean and powerfull

Installed inside the dash right behind the stock radio in a Subaru Crosstrek without major issues.

Great sound once you've got it tuned & the speaker level inputs + signal sensing turn-on make integrating it into the stock system easy.

The only thing that would have made it easier would have been screw terminals instead of wire pigtails.

The one problem I have is probably a Subaru, not a Soundstream issue... after the install, my Starlink (Subaru remote telematics) light is on. This may be due to an interaction between the amp and the DCM (data communications module). I'll have to work this out w/Subaru.

My only complaint about value is that it went on sale the week after I bought it!

By Matt on January 20, 2021

1 found this helpful


Awesome

Massive power for small amp
Very satisfied .. I highly recommend it

By Hawk on October 23, 2021




MC300 small

Boss MC300

Weatherproof Bike and Motorcycle Handlebar Amplified Speaker Set

(7)

$32.99

List price $99.99

99-2011 small

Metra 99-2011 Dash Kit

Install a new Single-DIN or Double-DIN car stereo in select 1990-2012 vehicles from Chevrolet, GMC, Buick

(20)

$16.99

List price $26.99

PW877 small

Pyramid PW877 Power 8"

$21.99

List price $39.99

PBT78XP small

Pyle PBT78XP

Deluxe Bluetooth Dialing Car Kit for Bluetooth Enabled Mobile Phones

$42.95

List price $99.99

PDX-M12 small

Alpine PDX-M12

1200W RMS PDX Series Monoblock Power Density Class D Digital Car Amplifier

(21)

$599.95

List price $900.00

KS-U49 small

JVC KS-U49

USB and 3.5mm Minjack to iPod Audio and Video Interface Adapter/Cable for JVC Receivers

(4)

$1.99

List price $49.95

VIMFD-95 small

Crux VIMFD-95

Video In-Motion Activation for select 2011-2015 vehicles from Ford, Lincoln with MyFord Touch Systems

$255.15

List price $396.90

PN4.520D small

Soundstream PN4.520D

520W Picasso Nano Series Class-D Digital 4-Channel Amplifier

(23)

$144.95

List price $229.99

MVPA1 small

NVX MVPA1

Marine-V Series 600W RMS Monoblock Class D Compact Marine/Powersports/Motorcycle Amplifier

(38)

$229.99

List price $349.99

Related Searches


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

2004 Ford Thunderbird

2011 Lexus LS460

1990 Dodge B150

2016 Lexus IS300

2012 Nissan Maxima

2020 Tesla Model S

1983 Subaru DL

2023 Audi A3

2025 Audi A3

1975 Ford Pinto

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.