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FREE Bonus Gift Card with Select Products for your 2009 SX4 close

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Subwoofers,
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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.
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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2009 SX4
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Rockford Fosgate Power T1D410 + Free $50 Gift Card

600W 10" Power T1 Series Dual 4 ohm Subwoofer

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Rockford Fosgate Power T1D410 + Free $50 Gift Card

600W 10" Power T1 Series Dual 4 ohm Subwoofer

• 1200W Peak
• 600W RMS
• High Excursion TPE (Thermo-Plastic Elastomer) Surround
• SWIFT Impedance Selection
• Dual Opposing Spiders
• Parabolic Triangular Cone Geometry

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List price $529.99
-9% $479.99

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• 1200W Peak
• 600W RMS
• High Excursion TPE (Thermo-Plastic Elastomer) Surround
• SWIFT Impedance Selection
• Dual Opposing Spiders
• Parabolic Triangular Cone Geometry

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Rockford Fosgate Power T1D210 + Free $100 Gift Card

600W 10" Power T1 Series Dual 2 ohm Subwoofer

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Rockford Fosgate Power T1D210 + Free $100 Gift Card

600W 10" Power T1 Series Dual 2 ohm Subwoofer

• 1200W Peak
• 600W RMS
• High Excursion TPE (Thermo-Plastic Elastomer) Surround
• SWIFT Impedance Selection
• Dual Opposing Spiders
• Parabolic Triangular Cone Geometry

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List price $579.99
-17% $479.99

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• 1200W Peak
• 600W RMS
• High Excursion TPE (Thermo-Plastic Elastomer) Surround
• SWIFT Impedance Selection
• Dual Opposing Spiders
• Parabolic Triangular Cone Geometry

Lowest price in 30 days

Rockford Fosgate Punch P3D2-15 + Free $50 Gift Card

1200W Max (600W RMS) 15" Punch P3 Series Dual 2-Ohm Car Subwoofer (Newest Model)

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Rockford Fosgate Punch P3D2-15 + Free $50 Gift Card

1200W Max (600W RMS) 15" Punch P3 Series Dual 2-Ohm Car Subwoofer (Newest Model)

• 1200W Peak
• 600W RMS
• Anodized Aluminum Heat Sinking Cone
• Santoprene Vertical Attach Surround Technique
• 4-Layer 2-1/2" Voice Coil
• Proprietary Spider Venting

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31
List price $389.99
-13% $340.20

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• 1200W Peak
• 600W RMS
• Anodized Aluminum Heat Sinking Cone
• Santoprene Vertical Attach Surround Technique
• 4-Layer 2-1/2" Voice Coil
• Proprietary Spider Venting

JBL ARENA 12 + FREE $100 Gift Card

1,600W Peak (800W RMS) Arena Series 12” 2-Ohm Component Subwoofer

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JBL ARENA 12 + FREE $100 Gift Card

1,600W Peak (800W RMS) Arena Series 12” 2-Ohm Component Subwoofer

• 1600 watts Watts Max
• 800 watts Watts RMS
• Aluminum Cone
• Nitrile Butadiene Rubber NBR Surround
• Vented aluminum frame
• High-tech motor
• Progressive spider

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9
List price $699.95
-21% $549.95

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• 1600 watts Watts Max
• 800 watts Watts RMS
• Aluminum Cone
• Nitrile Butadiene Rubber NBR Surround
• Vented aluminum frame
• High-tech motor
• Progressive spider

JBL Stadium 122SSI + FREE $75 Gift Card

1500W Peak (500W RMS) 12" Stadium Series Selectable Smart Impedance 2 or 4 Ohm High-Performance Subwoofers

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JBL Stadium 122SSI + FREE $75 Gift Card

1500W Peak (500W RMS) 12" Stadium Series Selectable Smart Impedance 2 or 4 Ohm High-Performance Subwoofers

• Peak Power: 1500 watts
• RMS Power: 500 watts
• Glass Fiber and Pulp/Kevlar Cone
• Nitrile Butadiene Rubber NBR Surround
• Impedance: Dual 2 or 4 ohm
• Mount depth: 7.117"
• Sensitivity: 92 dB

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9
List price $424.95
-29% $299.95

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• Peak Power: 1500 watts
• RMS Power: 500 watts
• Glass Fiber and Pulp/Kevlar Cone
• Nitrile Butadiene Rubber NBR Surround
• Impedance: Dual 2 or 4 ohm
• Mount depth: 7.117"
• Sensitivity: 92 dB

Rockford Fosgate Power T1S1-12 + Free $100 Gift Card

Power Series 12" T1 Slim Single 1-Ohm Subwoofer (600W RMS)

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Rockford Fosgate Power T1S1-12 + Free $100 Gift Card

Power Series 12" T1 Slim Single 1-Ohm Subwoofer (600W RMS)

• Power Series 12" T1 Slim Single 1-Ohm Subwoofer
• RMS: 600 Watts
• Carbon fiber/PMI/glass fiber cone with aluminum dustcap
• Injection molded foam surround with VAST
• Dual Nomex progressive spiders with integrated lead wires
• Aluminum diecast frame with integrated heat sink fins
• Custom insulated push spring 10 AWG terminals

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6
List price $699.99
-14% $599.99

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• Power Series 12" T1 Slim Single 1-Ohm Subwoofer
• RMS: 600 Watts
• Carbon fiber/PMI/glass fiber cone with aluminum dustcap
• Injection molded foam surround with VAST
• Dual Nomex progressive spiders with integrated lead wires
• Aluminum diecast frame with integrated heat sink fins
• Custom insulated push spring 10 AWG terminals

Rockford Fosgate Power T1D415 + Free $150 Gift Card

1000W 15" Power T1 Series Dual 4 ohm Subwoofer

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Rockford Fosgate Power T1D415 + Free $150 Gift Card

1000W 15" Power T1 Series Dual 4 ohm Subwoofer

• 2000W Peak
• 1000W RMS
• Dual 4 Ohm
• Kevlar Fiber Reinforced Paper Cone
• VAST Santoprene Rubber Surround
• Anodized Aluminum Voice Coil
• Inductive Damping Heat Sink
• SWIFT Terminals

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10
List price $999.99
-15% $849.99

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Only 1 Left!

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• 2000W Peak
• 1000W RMS
• Dual 4 Ohm
• Kevlar Fiber Reinforced Paper Cone
• VAST Santoprene Rubber Surround
• Anodized Aluminum Voice Coil
• Inductive Damping Heat Sink
• SWIFT Terminals

Rockford Fosgate Power T2S2-13 + Free $200 Gift Card

Power Series 13" T2 Single 2-Ohm Subwoofer (2000 Watts RMS)

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Rockford Fosgate Power T2S2-13 + Free $200 Gift Card

Power Series 13" T2 Single 2-Ohm Subwoofer (2000 Watts RMS)

• Power Series 13" T2 Single 2-Ohm Subwoofer
• RMS: 2000 Watts
• Injection molded foam surround with VAST™
• Proprietary surround mechanical clamping ring
• Dual Nomex progressive spiders with integrated lead wires

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1
List price $1299.99
-15% $1,099.99

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• Power Series 13" T2 Single 2-Ohm Subwoofer
• RMS: 2000 Watts
• Injection molded foam surround with VAST™
• Proprietary surround mechanical clamping ring
• Dual Nomex progressive spiders with integrated lead wires

Cerwin Vega SPCL182 Subwoofer + Free $200 Gift Card

3200W Max (1600W RMS) 18" Stroker Pro Classic Series Single 2 ohm Car Subwoofer

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Cerwin Vega SPCL182 Subwoofer + Free $200 Gift Card

3200W Max (1600W RMS) 18" Stroker Pro Classic Series Single 2 ohm Car Subwoofer

• 3200 Watts Max
• 1600 Watts RMS
• Double Spiders
• Detented Adjustable Voice Coil Control
• Cast Aluminum Basket
• Klippel DA Optimized Motor and Suspension Symmetry

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1
List price $2359.99
-24% $1,799.99

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• 3200 Watts Max
• 1600 Watts RMS
• Double Spiders
• Detented Adjustable Voice Coil Control
• Cast Aluminum Basket
• Klippel DA Optimized Motor and Suspension Symmetry

Lowest price in 30 days

Rockford Fosgate Punch P3SD2-8 + Free $25 Gift Card

300W Max (150W RMS) 8" Punch Stage 3 Shallow Mount Dual 2-ohm Subwoofer

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Rockford Fosgate Punch P3SD2-8 + Free $25 Gift Card

300W Max (150W RMS) 8" Punch Stage 3 Shallow Mount Dual 2-ohm Subwoofer

• 300W Peak
• 150W RMS
• Dual 2-Ohm Voice Coil
• Anodized Aluminum Cone And Dustcap
• M-Roll Santoprene Surround
• Stamp-Cast Basket
• Dual Linear Spiders

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15
List price $224.99
-20% $180.07
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• 300W Peak
• 150W RMS
• Dual 2-Ohm Voice Coil
• Anodized Aluminum Cone And Dustcap
• M-Roll Santoprene Surround
• Stamp-Cast Basket
• Dual Linear Spiders

 
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