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2011 Ford Flex

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Subwoofers and enclosures, specifically designed for your 2011 Flex, as well as universal fit solutions

Overview Upgrade your Stereo Upgrade your Speakers Add a Subwoofer Add an Amplifier Digital Sound Processors Audio Installation & Accessories Add a Backup Camera Dads & Grads Sale

Subwoofers and Boxes for 2011 Ford Flex

A subwoofer that works with, or is designed for, your 2011 Ford Flex will add bass, clarity and depth to your music and system. A quality subwoofer will give realism and an overall rich, complete sound that you otherwise would not get with a factory car sound system.

Subwoofer bass packages

Universal Subwoofer Bass Packages

These packages include an amp, sub(s), an enclosure and amplifier wiring. They should fit your Ford Flex, but verify your trunk/rear vehicle area.

Universal Subwoofers

Universal Subwoofers

These sub(s) are perfect for adding to a empty box or custom built enclosure. They should work with your Ford Flex, but verify your trunk/rear vehicle area.

Universal-fit loaded and powered sub boxes

Universal-fit Loaded Subwoofer Boxes

These boxes include sub(s) and some include an amp. They should fit your Ford Flex, but verify your trunk/rear vehicle area.

Universal-fit empty unloaded sub boxes

Empty Universal-fit Sub Box Enclosures

These boxes are ready for you to add a sub and amp. They should fit your ride, but verify your trunk/rear vehicle area.

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RMS Power Handling
The RMS power is the amount of power the speaker requires to operate safely and properly. RMS Power Handling refers to the amount of power a speaker can handle on a continuous basis. We recommend powering your speakers or subwoofer with 80%-120% of its recommended RMS rating. The RMS power handling specification is typically rated per speaker unless otherwise noted.
Peak Power Handling
Peak power handling refers to the amount of power a speaker can handle during a brief musical burst. The RMS power range figure is a much more reliable rating for determining the speaker's power requirements. The Peak power handling specification is typically rated per speaker unless otherwise noted.
Series
Many brands group their products into series or lines of products to help customers know the level of quality (good, better, best for example). You can filter by series and the brand using our guided browsing.
Punch Series (72)
CompRT Series (42)
S Series (42)
CompR Series (39)
W3 v3 Series (39)
CompC Series (36)
SA Series (35)
Prime Series (30)
CompVR Series (28)
E-Series (28)
Y-Series (28)
CompVX Series (27)
X Series (27)
VC Series (26)
Prime R2 Series (24)
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R2 Series (23)
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VMAX Series (21)
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CompVT Series (20)
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W1 v3 Series (20)
Apocalypse Series (19)
Power T1 Series (19)
SML Series (19)
VEGA Series (19)
Solo-Baric L7T Series (18)
U Series (18)
Z Series (18)
Reference Series (17)
W0 v3 Series (17)
TW3 Shallow Mount Series (16)
Type-R Series (16)
N-Series (15)
Punch P3 Series (15)
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35 Series (14)
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KM Subwoofer Series (4)
RS Series (4)
Stroker Series (4)
TB Series (4)
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ES Series (2)
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Polk Audio MM1 Series (2)
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Uno Series (1)
W0 v2 Series (1)
XD Series (1)
XO Series (1)
Subwoofer Size
Refers to the diameter of the subwoofer, measured in inches.
Shallow Mount Installation
This means that the subwoofer/speaker is designed to be installed in areas that do not have a lot of space. Shallow mount subwoofers are typically found under a seat or behind the seat in some trucks.

Shallow mount speakers will typically have a mounting depth of 2" or less, while shallow mount subwoofers will typically have a mounting depth of 3" or less.
Top-Mount Depth (Mounting Depth)
The depth when installed on top of the mounting surface. Measured from the bottom of the speaker's magnet to the bottom of the mounting holes on the rim of the speaker.
Voice Coil(s)
Dual voice coil subs have more wiring flexibility than single voice coils subs; however, single voice coil subwoofers provide easier hookup options for wiring multiple subwoofers in parallel or series. You may also run a dual voice coil (DVC) sub in parallel, series, or combination. A quad voice coil has four voice coils and is equal to two dual voice coil subwoofers as far as wiring goes.
Impedance (Per Voice Coil)
The load value (in ohms) that the speakers present to the amplifier per voice coil - the amount of resistance to the current flow. This is a key specification as subs wired in parallel or low impedances can create problems with your amplifier and potentially void all warranties. We encourage you to ask our support department prior to purchase if you do not understand which impedance level will suit your application best.
Subwoofer Design
This is the design of the subwoofer or the opening of the subwoofer enclosure. Each design has it's own benefits, whether it is a square, circle, or oval.

Round/Circle: This is the typical and common subwoofer design. They have a round cone and are a circle in design.

Square: These woofers are able to achieve a greater cone area in a smaller space. Because of the greater surface area, some square subwoofers will be louder than a round subwoofer of the same size.

Minimum Sealed Box Volume
This value indicates the minimum sealed box volume that the manufacturer recommends for the subwoofer. The volume is typically displayed in cubic feet.
Maximum Sealed Box Volume
This value indicates the maximum sealed box volume that the manufacturer recommends for the subwoofer. The volume is typically displayed in cubic feet.
Sensitivity
An efficiency or sensitivity rating tells you how effectively a speaker converts power into sound. The higher the number, the more efficient the speaker and the louder it will play with the same input power. An efficient speaker helps you maximize your available power. Most sensitivity ratings measure the speaker's output with 1 watt of input, 1 meter from the speaker. Some speakers' sensitivity is measured with 2.83 volts of input, instead of 1 watt.
  Efficiency (1w/1m) is not an accurate indicator of a subwoofer's output capability and should not be used as a comparison to other speakers or subwoofers to determine which one is "louder".
Main Cone Color
This is the color of the speaker's or subwoofer's cone.
Recommended Enclosure Type
This is the recommended type of enclosure that the subwoofer should be installed into. Some subwoofers are specially designed for particular enclosures.

Sealed: These enclosures completely enclose the air inside the box. These boxes produce a tight bass.

Ported/Vented: These enclosures have a slot of air to escape from the box. The result is a sound that has more "boom".

Bandpass: These are a combination of both sealed and ported enclosures. They can be very efficient, but require tuning for the best response.

Xmax (millimeters)
Typically measured in millimeters, the Xmax value is the measure of a speaker cone's maximum excursion in one direction while maintaining a linear behavior.
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Tru Spec S12KL7X (1761UCI)

Empty Single 12" Vented Prefabricated Square Enclosure for Kicker Solo X 12" L7X Subwoofer

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Tru Spec S12KL7X (1761UCI)

Empty Single 12" Vented Prefabricated Square Enclosure for Kicker Solo X 12" L7X Subwoofer

• 12" Single Ported Subwoofer Enclosure
• 3/4" Medium Density Fiberboard (MDF) construction
• Total box volume: 3.00 cubic feet
• Compatible with Kicker 12" Solo X L7X (Sold separately)

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AudioControl SPK-12S2

700W RMS 12" Spike Series Single 2-ohm High-Performance Car Subwoofer

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AudioControl SPK-12S2

700W RMS 12" Spike Series Single 2-ohm High-Performance Car Subwoofer

• RMS Power: 700 watts
• Impedance: Single 2 ohm
• Paper Fiber with Mica Coating Cone
• Rubber Surround
• Mount depth: 6.14"
• Sensitivity: 84.6196 dB

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Diamond Audio DES102

800W Peak (400W RMS) 10" DES Series Dual 2-ohm Car Subwoofer

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Diamond Audio DES102

800W Peak (400W RMS) 10" DES Series Dual 2-ohm Car Subwoofer

• Peak Power: 800 watts
• RMS Power: 400 watts
• Fiber-Reinforced High Strength Paper Cone
• Impedance: Dual 2 ohm
• Sensitivity: 80.6 dB

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Tru Spec 4X8SUBP (1541YTM)

Empty Quad 8" Vented Prefabricated Enclosure

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Tru Spec 4X8SUBP (1541YTM)

Empty Quad 8" Vented Prefabricated Enclosure

• 8" Quad Ported Subwoofer Enclosure
• 3/4" Medium Density Fiberboard (MDF) construction
• Total box volume: 3.50 cubic feet
• Computer-designed CNC cut

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Rockford Fosgate Punch P2 P2D4-15

800W Peak (400W RMS) 15" Punch Series Dual 4-Ohm Car Subwoofer

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Rockford Fosgate Punch P2 P2D4-15

800W Peak (400W RMS) 15" Punch Series Dual 4-Ohm Car Subwoofer

• Peak Power: 800 watts
• RMS Power: 400 watts
• Impedance: Dual 4 ohm
• Kevlar Reinforced Pulp Paper Cone
• Rubber Surround
• Mount depth: 7.34"
• Sensitivity: 86 dB

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MTX 5512-44

800W Peak (400W RMS) 12" 55 Series Dual 4-ohm Car Subwoofer

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MTX 5512-44

800W Peak (400W RMS) 12" 55 Series Dual 4-ohm Car Subwoofer

• Peak Power: 800 watts
• RMS Power: 400 watts
• Impedance: Dual 4 ohm
• Polypropylene Cone
• Rubber Surround
• Mount depth: 6.188"
• Sensitivity: 85.7 dB

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Cerwin Vega H7124D

1400W Peak (250W RMS) 12" HED Series Dual 4-ohm Subwoofer

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Cerwin Vega H7124D

1400W Peak (250W RMS) 12" HED Series Dual 4-ohm Subwoofer

• Peak Power: 1400 watts
• RMS Power: 250 watts
• Impedance: Dual 4 ohm
• Carbon Fiber Polypropylene Cone
• Stitched Rubber Surround
• Mount depth: 5.35"
• Sensitivity: 87.0 dB

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Rockford Fosgate Prime R2 R2-2X10

2000W Peak (1000W RMS) 10" Prime R2 Series Dual 2-Ohm Sealed Subwoofer Enclosure

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Rockford Fosgate Prime R2 R2-2X10

2000W Peak (1000W RMS) 10" Prime R2 Series Dual 2-Ohm Sealed Subwoofer Enclosure

• 1000 watts Dual 10" Sealed Subwoofer Enclosure
• Dual 2 ohm Impedance
• Spring-loaded Terminal Posts
• Enclosure Dimensions: 12.5" TD x 7.5" BD x 30.12" W x 12.20" H

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Bazooka BT8024DVC (Open Box, Great)

20W Peak Loaded Single 8" Non-Amplified Ported Subwoofer Bass Tube Enclosure

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Bazooka BT8024DVC (Open Box, Great)

20W Peak Loaded Single 8" Non-Amplified Ported Subwoofer Bass Tube Enclosure

• Ported enclosure with 1 8" BT Series Subwoofer
• 200 watts Peak
• Final Impedance: 4-ohm x 2 sets
• Dimensions: 18" L x 10" H x 8.5" W

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• Ported enclosure with 1 8" BT Series Subwoofer
• 200 watts Peak
• Final Impedance: 4-ohm x 2 sets
• Dimensions: 18" L x 10" H x 8.5" W

Alpine SWT-10S4

1000W Peak (350W RMS) 10" SWT Series Single 4-ohm Shallow Car Subwoofer

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Alpine SWT-10S4

1000W Peak (350W RMS) 10" SWT Series Single 4-ohm Shallow Car Subwoofer

• Peak Power: 1000 watts
• RMS Power: 350 watts
• Impedance: Single 4 ohm
• Kevlar Reinforced Pulp Paper Cone
• Polyurethane Surround
• Mount depth: 4-3/16"
• Sensitivity: 85.1 dB

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Massive Audio GT12

1000W Peak (500W RMS) 12" GT Series Dual 4-ohm Subwoofer

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Massive Audio GT12

1000W Peak (500W RMS) 12" GT Series Dual 4-ohm Subwoofer

• Peak Power: 1000 watts
• RMS Power: 500 watts
• Impedance: Dual 4 ohm
• Textured Non-Pressed Pulp with Resin Cone
• High Roll Foam Surround
• Sensitivity: 84.5 dB

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Alpine S2-SB10

1800W Peak (600W RMS) Loaded Single 10" Sealed PrismaLink Subwoofer Enclosure with RGB Light

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Alpine S2-SB10

1800W Peak (600W RMS) Loaded Single 10" Sealed PrismaLink Subwoofer Enclosure with RGB Light

• Sealed enclosure with 1 10" S Series Subwoofer
• 600 watts RMS (1800 watts Peak)
• Final Impedance: 2-ohm
• Dimensions: 14.5" L x 13" H x 11.25" W

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Alpine S2-SB8

900W Peak (300W RMS) Loaded Single 8" Sealed PrismaLink Subwoofer Enclosure with RGB Light

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Alpine S2-SB8

900W Peak (300W RMS) Loaded Single 8" Sealed PrismaLink Subwoofer Enclosure with RGB Light

• Sealed enclosure with 1 8" S Series Subwoofer
• 300 watts RMS (900 watts Peak)
• Final Impedance: 2-ohm
• Dimensions: 12.5" L x 11" H x 9.25" W

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JBL Club 122 (JBLSUBCB122)

1200W Peak (400W RMS) 12" Club Series Dual 2-or 4-ohm Car Subwoofer

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JBL Club 122 (JBLSUBCB122)

1200W Peak (400W RMS) 12" Club Series Dual 2-or 4-ohm Car Subwoofer

• Peak Power: 1200 watts
• RMS Power: 400 watts
• Impedance: Dual 2 or 4 ohm
• Polypropylene Cone
• Rubber Surround
• Mount depth: 5-1/2"
• Sensitivity: 86 dB

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AudioControl EPIC X10D4

750W Peak (500W RMS) 10" EPICX Series Dual 4-ohm Subwoofer

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AudioControl EPIC X10D4

750W Peak (500W RMS) 10" EPICX Series Dual 4-ohm Subwoofer

• Peak Power: 750 watts
• RMS Power: 500 watts
• Impedance: Dual 4 ohm
• Non-Pressed Paper Cone
• Composite Foam Surround
• Mount depth: 5.3"
• Sensitivity: 85.1 dB

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$149.00

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Diamond Audio DESMB10

800W Peak (400W RMS) Loaded Single 10" Vented Enclosure

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Diamond Audio DESMB10

800W Peak (400W RMS) Loaded Single 10" Vented Enclosure

• Ported enclosure with 1 10" DES Series Subwoofer
• 400 watts RMS (800 watts Peak)
• Final Impedance: 2-ohm
• Dimensions: 20.9" L x 12.9" H x 7.8" W

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• Ported enclosure with 1 10" DES Series Subwoofer
• 400 watts RMS (800 watts Peak)
• Final Impedance: 2-ohm
• Dimensions: 20.9" L x 12.9" H x 7.8" W

Sundown Audio NS v.6 D1 18" (NSV618D1)

7000W Peak (3500W RMS) 18" Nightshade Series Dual 1-ohm Car Subwoofer (SW-NSV618D1)

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Sundown Audio NS v.6 D1 18" (NSV618D1)

7000W Peak (3500W RMS) 18" Nightshade Series Dual 1-ohm Car Subwoofer (SW-NSV618D1)

• Peak Power: 7000 watts
• RMS Power: 3500 watts
• Impedance: Dual 1 ohm
• Polypropylene Cone
• Mega Roll V2 Surround
• Sensitivity: 87.47 dB

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Rockford Fosgate Power T1 T1S1-10P

1000W Peak (500W RMS) 10" T1 Slim Series Single 1-ohm Shallow Subwoofer for Ported Enclosures

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Rockford Fosgate Power T1 T1S1-10P

1000W Peak (500W RMS) 10" T1 Slim Series Single 1-ohm Shallow Subwoofer for Ported Enclosures

• Peak Power: 1000 watts
• RMS Power: 500 watts
• Impedance: Single 1 ohm
• Optimized for ported enclosures
• Carbon Fiber/PMI/Glass Fiber Cone
• Synthetic organic polymer Surround
• Mount depth: 3.01"
• Sensitivity: 82 dB

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Earthquake Sound DBXi-12D

1500W Peak (500W RMS) 12" Dual 4 Ohm DBXi Series Car Subwoofer

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Earthquake Sound DBXi-12D

1500W Peak (500W RMS) 12" Dual 4 Ohm DBXi Series Car Subwoofer

• 1500W Peak
• 500W RMS
• 2" Aluminum Bobbin Voice Coil
• 140 Oz. Double Stacked Magnet
• Sensitivity: 85dB
• Mounting Depth: 6-3/4"

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Belva BPKGW122

600W Peak 12" Single 2-Ohm Car Audio Subwoofer

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Belva BPKGW122

600W Peak 12" Single 2-Ohm Car Audio Subwoofer

• 600 Watts Max
• Polypropylene Cone
• Durable Rubber Surround
• 1.5" black aluminum voice coil
• 37 oz. ferrite magnet motor structure

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

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    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.
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    FAQ for Subwoofer and Sub Box Upgrades in 2011 Flex

    Q: Can I upgrade or change the Subwoofer and Sub Box Upgrades in 2011 Ford Flex?

    A: Yes this page includes all the best Subwoofer and Sub Box Upgrades that work in your Flex.

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    Modern vehicles often require specific brackets, wiring harnesses, and mounting solutions. A fit guide ensures:

    • You see only parts engineered for your exact vehicle
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    Whether you're replacing a factory stereo or upgrading your entire audio system, the Fit Finder eliminates uncertainty.

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