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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.
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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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Massive Audio GTR124

1500W Peak (1000W RMS) 12" GTR Series Dual 4-ohm Car Subwoofer

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Massive Audio GTR124

1500W Peak (1000W RMS) 12" GTR Series Dual 4-ohm Car Subwoofer

• Peak Power: 1500 watts
• RMS Power: 1000 watts
• Impedance: Dual 4 ohm
• Non-Pressed Paper cone
• High Roll Foam surround
• Sensitivity: 84.5 dB

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List price $292.45
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Atrend 12DVN

Empty Dual 12" Vented Enclosure for Alpine E-S-R-X Series Subwoofers

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Atrend 12DVN

Empty Dual 12" Vented Enclosure for Alpine E-S-R-X Series Subwoofers

• 12" Dual Ported Subwoofer Enclosure
• Fits Alpine E, S, R, and X series subwoofers
• 3/4" Medium Density Fiberboard (MDF) construction
• Miter and Dado construction
• Premium carpet finish
• Silver spring loaded terminal cups
• Glued and braced with fasteners
• Total box volume: 2.8 cubic feet

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Massive Audio GTR122

1500W Peak (1000W RMS) 12" GTR Series Dual 2-ohm Car Subwoofer

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Massive Audio GTR122

1500W Peak (1000W RMS) 12" GTR Series Dual 2-ohm Car Subwoofer

• Peak Power: 1600 watts
• RMS Power: 1000 watts
• Impedance: Dual 2 ohm
• Textured Non-Pressed Pulp with Resin Cone
• High Roll Foam Surround
• Sensitivity: 84.5 dB

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List price $292.45
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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)

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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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American Bass XMAXXX Monster 15" (XMAXXX-1511)

8000W Peak (4000W RMS) 15" XMAXXX Monster Series Dual 1-ohm Subwoofer

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American Bass XMAXXX Monster 15" (XMAXXX-1511)

8000W Peak (4000W RMS) 15" XMAXXX Monster Series Dual 1-ohm Subwoofer

• Peak Power: 8000 watts
• RMS Power: 4000 watts
• Impedance: Dual 1 ohm
• Carbon Fiber Reinforced Non-Pressed Paper cone
• High Roll Foam surround
• Mount depth: 10.875"
• Sensitivity: 87.5 dB

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AudioControl EPIC X10D2

750W Peak (500W RMS) 10" EPICX Series Dual 2-ohm Subwoofer

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AudioControl EPIC X10D2

750W Peak (500W RMS) 10" EPICX Series Dual 2-ohm Subwoofer

• Peak Power: 750 watts
• RMS Power: 500 watts
• Impedance: Dual 2 ohm
• Non-Pressed Paper Cone
• Composite Foam Surround
• Mount depth: 5.3"
• Sensitivity: 84.8 dB

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$149.00

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Earthquake Sound DBXi-15D

15" Dual 4 ohm DBXi Series Car Subwoofer

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Earthquake Sound DBXi-15D

15" Dual 4 ohm DBXi Series Car Subwoofer

• 2000W Peak
• 750W RMS
• 2" Aluminum Bobbin Voice Coil
• 150 Oz. Double Stacked Magnet
• Sensitivity: 85dB
• Mounting Depth: 6-3/8"

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Diamond Audio DES124

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

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Diamond Audio DES124

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

• Peak Power: 1000 watts
• RMS Power: 500 watts
• Fiber-Reinforced High Strength Paper Cone
• Impedance: Dual 4 ohm
• Sensitivity: 82.8 dB

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Hertz DS 25.3

600W Peak (150W RMS) 10" Dieci Series Single 4-ohm Subwoofer

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Hertz DS 25.3

600W Peak (150W RMS) 10" Dieci Series Single 4-ohm Subwoofer

• Peak Power: 600 watts
• RMS Power: 150 watts
• Impedance: Single 4 ohm
• Mica Injected Polypropylene - MIPP cone
• Butyl Rubber surround
• Mount depth: 4.1"
• Sensitivity: 89 dB

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Rockford Fosgate Prime R2 R2-2X12

1000WPeak (500WRMS) Loaded Dual 12" Sealed Enclosure

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Rockford Fosgate Prime R2 R2-2X12

1000WPeak (500WRMS) Loaded Dual 12" Sealed Enclosure

• 1000 watts Dual 12" Sealed Subwoofer Enclosure
• Dual 2 ohm Impedance
• Spring-loaded Terminal Posts
• Enclosure Dimensions: 12.88" TD x 7.5" BD x 34.17" W x 14.38" H

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DS18 Hooligan X 15" (HOOL-X15.4DHE)

6000W Peak (4000W RMS) 15" Hooligan Series Dual 4-ohm Car Subwoofer

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DS18 Hooligan X 15" (HOOL-X15.4DHE)

6000W Peak (4000W RMS) 15" Hooligan Series Dual 4-ohm Car Subwoofer

• Peak Power: 6000 watts
• RMS Power: 4000 watts
• Non-Pressed Paper Cone
• Foam Surround
• Impedance: Dual 4 ohm
• Mount depth: 11.19"
• Sensitivity: 88.3 dB

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Hertz MPBX 300 S2

1000 Peak (500 RMS) 12" S2 Series Single 2 ohms Subwoofer Loaded Enclosure

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Hertz MPBX 300 S2

1000 Peak (500 RMS) 12" S2 Series Single 2 ohms Subwoofer Loaded Enclosure

• Peak Power: 1000 watts
• RMS Power: 500 watts
• Impedance: Single 2 ohm
• Polypropylene Cone
• Rubber Surround

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List price $925.00
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JL Audio StowAway PES110-TW1-2

StowAway Sealed Loaded Subwoofer Enclosure with 300W RMS 10TW1-2

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JL Audio StowAway PES110-TW1-2

StowAway Sealed Loaded Subwoofer Enclosure with 300W RMS 10TW1-2

• RMS Power: 300 watts
• Impedance: 2-ohm
• Mica Injected Polypropylene - MIPP cone
• Rubber surround
• Top-mount depth: 4.36"
• Down-firing hard-shell design

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Sundown Audio U-15 v.2 D2 15" (U15V2D2)

4000W Peak (2000W RMS) 15" U Series Dual 2-ohm Car Subwoofer (SW-UV215D2)

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Sundown Audio U-15 v.2 D2 15" (U15V2D2)

4000W Peak (2000W RMS) 15" U Series Dual 2-ohm Car Subwoofer (SW-UV215D2)

• Peak Power: 4000 watts
• RMS Power: 2000 watts
• Impedance: Dual 2 ohm
• Pressed Paper Cone
• Double-Stitched Surround
• Mount depth: 9"
• Sensitivity: 87.87 dB

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List price $803.99
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Cerwin-Vega H15DV4

1500W Peak (500W RMS) 15" HED Series Dual 4-ohm Car Subwoofer

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Cerwin-Vega H15DV4

1500W Peak (500W RMS) 15" HED Series Dual 4-ohm Car Subwoofer

• Peak Power: 1500 watts
• RMS Power: 500 watts
• Impedance: Dual 4 ohm
• Hybrid Polypropylene-Treated Paper cone
• Treated Foam
• Mount depth: 7.66"
• Sensitivity: 84 dB

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Alpine W-SB10V

750W Peak (250W RMS) Loaded Single 10" Vented Subwoofer Enclosure

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Alpine W-SB10V

750W Peak (250W RMS) Loaded Single 10" Vented Subwoofer Enclosure

• Ported enclosure with 1 10" Bass Series Subwoofer
• 250 watts RMS (750 watts Peak)
• Final Impedance: 4-ohm

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• Ported enclosure with 1 10" Bass Series Subwoofer
• 250 watts RMS (750 watts Peak)
• Final Impedance: 4-ohm

Cerwin Vega H7124S

1200W Peak (200W RMS) 12" HED Series Single 4-ohm Subwoofer

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Cerwin Vega H7124S

1200W Peak (200W RMS) 12" HED Series Single 4-ohm Subwoofer

• Peak Power: 1200 watts
• RMS Power: 200 watts
• Impedance: Dual 4 ohm
• Carbon Fiber Polypropylene Cone
• Stitched Rubber Surround
• Mount depth: 5.35"
• Sensitivity: 87.0 dB

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List price $131.99
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AudioControl EPIC X12D2

750W Peak (500W RMS) 12" EPICX Series Dual 2-ohm Subwoofer

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AudioControl EPIC X12D2

750W Peak (500W RMS) 12" EPICX Series Dual 2-ohm Subwoofer

• Peak Power: 750 watts
• RMS Power: 500 watts
• Impedance: Dual 2 ohm
• Non-Pressed Paper Cone
• Composite Foam Surround
• Mount depth: 6"
• Sensitivity: 86.3 dB

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$159.00

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MTX 5515-44

800W Peak (400W RMS) 15" 55 Series Dual 4-ohm Car Subwoofer

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MTX 5515-44

800W Peak (400W RMS) 15" 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: 8.00"
• Sensitivity: 85.4 dB

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Cerwin Vega H7104S

1000W Peak (200W RMS) 10" HED Series Single 4-ohm Subwoofer

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Cerwin Vega H7104S

1000W Peak (200W RMS) 10" HED Series Single 4-ohm Subwoofer

• Peak Power: 1000 watts
• RMS Power: 200 watts
• Impedance: Single 4 ohm
• Carbon Fiber Polypropylene Cone
• Stitched Rubber Surround
• Mount depth: 5.1"
• Sensitivity: 85.0 dB

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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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