Garage
Shop

Your Vehicle


Checkmark Icon
Fits select locations in your 2003 Legacy
Add vehicle details to confirm exact location or Update vehicle.

Update vehicle | Remove vehicle | Vehicle store

Shop by Category


Products in these categories contain items that carry a guarantee to fit your Subaru Legacy (change vehicle)

Top sellers

Loading...
filter-icon Filters & Sort

(2) MB QUART FKB169 6x9" 300 Watt Car Speakers+(2) 6.5" 240 Watt Speakers

300W Max (150W RMS) 6x9" Formula Series 2-Way Coaxial Car Speakers Package

FKB 116,FKB169 big
Go to item page Right Arrow Icon of Right Arrow

300W Max (150W RMS) 6x9" Formula Series 2-Way Coaxial Car Speakers Package

• 150 Watts Max Each, 75 Watts RMS Each
• 1" Aluminum Dome Tweeter
• Thermo-Formed Polypropylene Cone
• 4 ohm Impedance
• Sensitivity: 88 dB
• Mounting Depth: 3.35"

shipping truck icon Free shipping in USA. Provide zip for delivery date.
Fits select models only.
Add details to confirm fitment.
20
List price $169.98
-49% $85.98

In stock

Only 2 Left!

MB QUART RS1-269 (2-Pairs, 4-Total)

480W Peak (240W RMS) 6x9" Reference Series 2-Way Component Speaker System (2-Pairs)

RS1269_2 big
Go to item page Right Arrow Icon of Right Arrow

480W Peak (240W RMS) 6x9" Reference Series 2-Way Component Speaker System (2-Pairs)

• 120 watts Peak Each, 60 watts RMS Each
• 3/4" Titanium Dome Tweeters
• Bamboo Fiber Cone cone material
• Impedance: 4 ohm
• Sensitivity: 88 dB

shipping truck icon Free shipping in USA. Provide zip for delivery date.
Fits select models only.
Add details to confirm fitment.
1
List price $439.98
-55% $199.98

In stock

Only 3 Left!

• 120 watts Peak Each, 60 watts RMS Each
• 3/4" Titanium Dome Tweeters
• Bamboo Fiber Cone cone material
• Impedance: 4 ohm
• Sensitivity: 88 dB

MB QUART PK1-116 (2-Pairs, 4-Total)

440W Peak (220W RMS) 6.5" Premium Series 2-Way Coaxial Car Speakers (2-Pairs)

PK1116_2 big
Go to item page Right Arrow Icon of Right Arrow

440W Peak (220W RMS) 6.5" Premium Series 2-Way Coaxial Car Speakers (2-Pairs)

• 110 watts Peak Each, 55 watts RMS Each
• 1" Magnesium Dome Tweeters
• Paper cone material
• Impedance: 4 ohm
• Sensitivity: 88.5 dB

Save 15% Off Package Deals at Checkout!
shipping truck icon Free shipping in USA. Provide zip for delivery date.
additional information required
Fits select locations in your Legacy.
Add vehicle details to confirm exact location.
List price $379.98
-14% $325.98

In stock

• 110 watts Peak Each, 55 watts RMS Each
• 1" Magnesium Dome Tweeters
• Paper cone material
• Impedance: 4 ohm
• Sensitivity: 88.5 dB

MB Quart QSE-216 (2-Pairs, 4-Total)

1440W Peak (680W RMS) 6.5" Q Series 2-way Component Speaker System (2-Pairs)

QSE216_2 big
Go to item page Right Arrow Icon of Right Arrow

1440W Peak (680W RMS) 6.5" Q Series 2-way Component Speaker System (2-Pairs)

• 360 watts Peak Each, 170 watts RMS Each
• 1" Titanium Dome Tweeters
• Polypropylene-Mica cone material
• Impedance: 4 ohm
• Sensitivity: 85.5 dB

Save 15% Off Package Deals at Checkout!
shipping truck icon Free shipping in USA. Provide zip for delivery date.
additional information required
Fits select locations in your Legacy.
Add vehicle details to confirm exact location.
List price $2399.98
-17% $1,999.98

In stock.

• 360 watts Peak Each, 170 watts RMS Each
• 1" Titanium Dome Tweeters
• Polypropylene-Mica cone material
• Impedance: 4 ohm
• Sensitivity: 85.5 dB

MB QUART PK1-169 (2-Pairs, 4-Total)

440W Peak (220W RMS) 6x9" Premium Series 2-Way Coaxial Car Speakers (2-Pairs)

PK1169_2 big
Go to item page Right Arrow Icon of Right Arrow

440W Peak (220W RMS) 6x9" Premium Series 2-Way Coaxial Car Speakers (2-Pairs)

• 110 watts Peak Each, 55 watts RMS Each
• 1" Magnesium Dome Tweeters
• Paper cone material
• Impedance: 4 ohm
• Sensitivity: 85.5 dB

Save 15% Off Package Deals at Checkout!
shipping truck icon Free shipping in USA. Provide zip for delivery date.
Fits select models only.
Add details to confirm fitment.
List price $439.98
-31% $305.48

Available

Ships in 10-14 days

• 110 watts Peak Each, 55 watts RMS Each
• 1" Magnesium Dome Tweeters
• Paper cone material
• Impedance: 4 ohm
• Sensitivity: 85.5 dB

    Clear all

    All About

    MB Quart Car Speakers
    MB Quart car speakers are engineered from the ground up to deliver quality, affordable sound in the challenging environment of a car. MB Quart has a high solid option in most common speaker sizes, so finding an MB Quart car speaker set that will fit your car should be no problem at all. MB Quart speakers, like the Onyx and Reference series, are available in component systems as well as coaxial speakers, enabling them to work well in virtually any environment.

    With the MB Quart Onyx series provides a quality option in a variety of sizes at an easy to meet price point. These speakers crisply defined treble and bold, powerful sound offer a major upgrade over most stock speakers. The sleek Onyx speakers crisp sounds are a result of a light weight, durable polypropylene cone and silk dome tweeters.

    Other options available from MB Quart include the Reference series speakers. The Reference speakers are classic coaxial speakers and component systems with multiple mounting options for your convenience. The injection molded polypropylene cone provides incredibly smooth mid-range sounds for each speaker while the titanium WideSphere tweeters produce crystal clear highs.

    MB Quart car speakers precise cone travel and power handling ensure a quality listening experience. From 5" x 7" and 6" x 9" to 5.25" speaker configurations, we have every MB Quart speaker to help you create the best sound system around at Sonic Electronix.
    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

    2003 Ford Focus

    1997 Nissan Quest

    2001 Audi A4

    2004 Ford Thunderbird

    2011 Ford Explorer

    2003 Subaru Legacy

    2010 Ford Flex

    2003 Ford Excursion

    1998 Chevrolet Tracker

    1998 Dodge Durango

    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.