Garage
Shop

Discontinued All Soundstream Car Speakers for your 2021 Explorer ST close

Consistent, superior sound across all models with Soundstream All Car Speakers.

Exclamation Icon It’s a no-brainer.
Get your speakers here.

Install kit discounts · Guaranteed fit · Full warranty
Loading...
Filters

Your Vehicle


Checkmark Icon
Fits select locations in your 2021 Explorer ST
Add vehicle details to confirm exact location or Update vehicle.

Update vehicle | Remove vehicle | Vehicle store

Shop the Category

filter-icon Filters & Sort
You are currently viewing discontinued products.

Soundstream SPH.100

1" Pro Audio Series Tweeter Horn Lens

Go to item page Right Arrow Icon of Right Arrow

1" Pro Audio Series Tweeter Horn Lens

• Size/Type: 1" Screw-On
• ABS Construction
• Mounting Depth: 2.75"
• Compatible With Soundstream SCT and SMD Series Tweeters

• Size/Type: 1" Screw-On
• ABS Construction
• Mounting Depth: 2.75"
• Compatible With Soundstream SCT and SMD Series Tweeters

Soundstream SPH.300

1" Pro Audio Series Tweeter Horn Lens

Go to item page Right Arrow Icon of Right Arrow

1" Pro Audio Series Tweeter Horn Lens

• Size/Type: 1" Screw-On
• IMPP Construction
• Mounting Depth: 3.25"
• Compatible With Soundstream SCT and SMD Series Tweeters

Promo Savings Icon

• Size/Type: 1" Screw-On
• IMPP Construction
• Mounting Depth: 3.25"
• Compatible With Soundstream SCT and SMD Series Tweeters

Soundstream SMD.200

100W Pro Audio Series Midrange Compression Driver

Go to item page Right Arrow Icon of Right Arrow

100W Pro Audio Series Midrange Compression Driver

• 200 Watts Max, 100 Watts RMS
• Composite Diaphragm Tweeter Construction
• 4 Ohm Impedance
• Sensitivity: 106 dB
• Frequency Response: 500-7,000 Hz

Universal Icon Universal – fits most vehicles.

Shop similar products or Update vehicle

• 200 Watts Max, 100 Watts RMS
• Composite Diaphragm Tweeter Construction
• 4 Ohm Impedance
• Sensitivity: 106 dB
• Frequency Response: 500-7,000 Hz

Soundstream SPD-200

200W Max (100W RMS) Compression Horn Pro Audio Driver (Sold Individually)

Go to item page Right Arrow Icon of Right Arrow

200W Max (100W RMS) Compression Horn Pro Audio Driver (Sold Individually)

• 200W Pro Audio Driver
• 100W RMS
• 4 ohm Impedance
• Efficiency: 101dB
• 1" Aluminum Voice Coil

Universal Icon Universal – fits most vehicles.

Shop similar products or Update vehicle

• 200W Pro Audio Driver
• 100W RMS
• 4 ohm Impedance
• Efficiency: 101dB
• 1" Aluminum Voice Coil

Soundstream Midrange Package (2 SMD.200 100W Midrange Compression Drivers & 2 Horn Lens)

Dual 100W Pro Audio Series Midrange Compression Drivers w/ 2 1" Tweeter Horn Lens

Go to item page Right Arrow Icon of Right Arrow

Dual 100W Pro Audio Series Midrange Compression Drivers w/ 2 1" Tweeter Horn Lens

• Dual SMD.200 Midrange Drivers
• 200 Watts Max, 100 Watts RMS
• Composite Diaphragm Tweeter Construction
• 2 ABS Construction Horn Lens
• Compatible With Soundstream SCT and SMD Series Tweeters

Universal Icon Universal – fits most vehicles.

Shop similar products or Update vehicle

• Dual SMD.200 Midrange Drivers
• 200 Watts Max, 100 Watts RMS
• Composite Diaphragm Tweeter Construction
• 2 ABS Construction Horn Lens
• Compatible With Soundstream SCT and SMD Series Tweeters

Soundstream SCT.340

100W SCT Series High Efficiency Tweeter Compression Driver w/ Titanium Diaphragm

Go to item page Right Arrow Icon of Right Arrow

100W SCT Series High Efficiency Tweeter Compression Driver w/ Titanium Diaphragm

• 100 Watts Max, 50 Watts RMS
• Titanium Diaphragm Tweeter
• Sensitivity: 104dB
• 8 ohm Impedance

Universal Icon Universal – fits most vehicles.

Shop similar products or Update vehicle

• 100 Watts Max, 50 Watts RMS
• Titanium Diaphragm Tweeter
• Sensitivity: 104dB
• 8 ohm Impedance

Soundstream SPD-400

300w Pro Audio Driver Horn

Go to item page Right Arrow Icon of Right Arrow

300w Pro Audio Driver Horn

• Max: 400W
• RMS: 200W
• Impedance: 8 ohm
• 3" titanium diaphragm
• Frequency response: 500 - 25000Hz

Universal Icon Universal – fits most vehicles.

Shop similar products or Update vehicle

• Max: 400W
• RMS: 200W
• Impedance: 8 ohm
• 3" titanium diaphragm
• Frequency response: 500 - 25000Hz

Soundstream SPH.400

2" Pro Audio Series Tweeter Horn Lens

Go to item page Right Arrow Icon of Right Arrow

2" Pro Audio Series Tweeter Horn Lens

• Size/Type: 2" Bolt-On
• Aluminum Construction
• Mounting Depth: 4.75"
• Compatible With Soundstream SCT600 Tweeter

• Size/Type: 2" Bolt-On
• Aluminum Construction
• Mounting Depth: 4.75"
• Compatible With Soundstream SCT600 Tweeter

Soundstream MCS.65

200W Peak (100W RMS) 6.5" Premium Marine Grade 2-Way Coaxial Speakers - Pair

Go to item page Right Arrow Icon of Right Arrow

200W Peak (100W RMS) 6.5" Premium Marine Grade 2-Way Coaxial Speakers - Pair

• 200 watts Max Each, 100 watts RMS Each
• 1" Titanium Dome Tweeter
• Injection Molded Polypropylene-Mica Composite Material
• Sensitivity: 89.3 dB
• Mounting Depth: 3-1/2"

• 200 watts Max Each, 100 watts RMS Each
• 1" Titanium Dome Tweeter
• Injection Molded Polypropylene-Mica Composite Material
• Sensitivity: 89.3 dB
• Mounting Depth: 3-1/2"

Soundstream SMD.202

100W Pro Audio Series Midrange Compression Driver

Go to item page Right Arrow Icon of Right Arrow

100W Pro Audio Series Midrange Compression Driver

• 200 Watts Max, 100 Watts RMS
• Composite Diaphragm Tweeter Construction
• 4 Ohm Impedance
• Sensitivity: 108 dB
• Frequency Response: 500-7,000 Hz

Universal Icon Universal – fits most vehicles.

Shop similar products or Update vehicle

• 200 Watts Max, 100 Watts RMS
• Composite Diaphragm Tweeter Construction
• 4 Ohm Impedance
• Sensitivity: 108 dB
• Frequency Response: 500-7,000 Hz

Soundstream SCT.600

120W RMS Pro Audio Series Tweeter Compression Driver

Go to item page Right Arrow Icon of Right Arrow

120W RMS Pro Audio Series Tweeter Compression Driver

• 240 Watts Max, 120 Watts RMS
• Titanium Dome Tweeter
• Forged Aluminum Frame
• 8 ohm Impedance

Promo Savings Icon

Universal Icon Universal – fits most vehicles.

Shop similar products or Update vehicle

• 240 Watts Max, 120 Watts RMS
• Titanium Dome Tweeter
• Forged Aluminum Frame
• 8 ohm Impedance

Soundstream MCS.80

250W Peak (125W RMS) 8" Premium Marine Grade 2-Way Coaxial Speakers - Pair

Go to item page Right Arrow Icon of Right Arrow

250W Peak (125W RMS) 8" Premium Marine Grade 2-Way Coaxial Speakers - Pair

• 250 watts Max Each, 125 watts RMS Each
• 1" Titanium Dome Tweeter
• Injection Molded Polypropylene Composite Material
• Sensitivity: 90.2 dB
• Mounting Depth: 4"

• 250 watts Max Each, 125 watts RMS Each
• 1" Titanium Dome Tweeter
• Injection Molded Polypropylene Composite Material
• Sensitivity: 90.2 dB
• Mounting Depth: 4"

Soundstream Midrange Package (2 SMD.202 100W Midrange Compression Drivers & 2 Horn Lens)

Dual SMD.202 Pro Audio Series Midrange Compression Drivers w/ 2 1" Tweeter Horn Lens

Go to item page Right Arrow Icon of Right Arrow

Dual SMD.202 Pro Audio Series Midrange Compression Drivers w/ 2 1" Tweeter Horn Lens

• Dual SMD.202 Midrange Drivers
• 200 Watts Max, 100 Watts RMS
• Composite Diaphragm Tweeter Construction
• 2 ABS Construction Horn Lens
• Compatible With Soundstream SCT and SMD Series Tweeters

Universal Icon Universal – fits most vehicles.

Shop similar products or Update vehicle

• Dual SMD.202 Midrange Drivers
• 200 Watts Max, 100 Watts RMS
• Composite Diaphragm Tweeter Construction
• 2 ABS Construction Horn Lens
• Compatible With Soundstream SCT and SMD Series Tweeters

    Clear all
    why-shoping-with-sonic

    We love people and we're ready to help you! See what separates us from our competition.

    Take advantage of our VIP rewards like 10% back on your purchases, free 2-day shipping, extended warranties, and free returns! Gain access to all of these rewards without any membership fees.
    Get great discounted (and possibly FREE) installation accessories with most car stereo purchases. This includes dash kits, wiring harnesses and antenna adapters that you will need to properly install your new car stereo.
    We are an Authorized Dealer for all the brands we sell, including the most premium brands in car and marine audio such as Hertz, JL Audio, NVX, Rockford Fosgate, Kicker, Alpine, Kenwood and many more.
    Shop Deals and get up to 30% off premium brands! Shop Now! We are always looking out for the best products and deals to offer our customers. Don’t pay too much by shopping elsewhere!
    We have information on brands, gear, and more for you to explore! Check out our YouTube Channel for helpful how-to videos, product reviews, and Q&As. For a more detailed look, also visit our Learning Center!
    Our trained experts are here to assist you! They are just a phone call or click away to help you get the right gear for you and your vehicle!
    Why Shop With Us?
    Save up to 10 different vehicles in your garage
    Vehicle
    Store
    Delete

    2016 Nissan Maxima

    2021 Volvo V60

    2021 Ford Explorer ST

    1995 Buick Skylark

    2007 Ford Five Hundred

    2022 Audi Q8

    2001 Chrysler Prowler

    2009 BMW M5

    1989 Dodge Shadow

    2004 Subaru Impreza

    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 category 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.