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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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DS18 SLC10S

440W Peak (220W RMS) 10" SELECT Series Single 4-ohm Car Subwoofer

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DS18 SLC10S

440W Peak (220W RMS) 10" SELECT Series Single 4-ohm Car Subwoofer

• Peak Power: 440 watts
• RMS Power: 220 watts
• Impedance: Single 4 ohm
• Non-Pressed Paper Cone
• Foam Surround
• Mount depth: 4.45"
• Sensitivity: 88 dB

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$101.95

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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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DS18 SLC12S

500W Peak (250W RMS) 12" SELECT Series Single 4-ohm Car Subwoofer

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DS18 SLC12S

500W Peak (250W RMS) 12" SELECT Series Single 4-ohm Car Subwoofer

• Peak Power: 500 watts
• RMS Power: 250 watts
• Non-Pressed Paper Cone
• Foam Surround
• Impedance: Single 4 ohm
• Mount depth: 5.47"
• Sensitivity: 90 dB

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$106.95

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DS18 EXL-TRX15.4D

6000W Peak (3000W RMS) 15" EXL Series Dual 4-ohm Car Subwoofer

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DS18 EXL-TRX15.4D

6000W Peak (3000W RMS) 15" EXL Series Dual 4-ohm Car Subwoofer

• Peak Power: 6000 watts
• RMS Power: 3000 watts
• Impedance: Dual 4 ohm
• Non-Pressed Paper with Epoxy Coating cone
• Foam surround
• Mount depth: 9.75"
• Sensitivity: 86 dB

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DS18 GEN-X104D

800W Peak (400W RMS) 10" GEN-X Series Dual 4-ohm Car Subwoofer

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DS18 GEN-X104D

800W Peak (400W RMS) 10" GEN-X Series Dual 4-ohm Car Subwoofer

• Peak Power: 800 watts
• RMS Power: 400 watts
• Impedance: Dual 4 ohm
• Paper Cone
• Foam Surround
• Mount depth: 5.39"
• Sensitivity: 87 dB

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DS18 GEN-X124D

900W Peak (450W RMS) 12" Gen-X Series Dual 4-ohm Car Subwoofer

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DS18 GEN-X124D

900W Peak (450W RMS) 12" Gen-X Series Dual 4-ohm Car Subwoofer

• Peak Power: 900 watts
• RMS Power: 450 watts
• Paper Cone
• Foam Surround
• Impedance: Dual 4 ohm
• Mount depth: 5.75"
• Sensitivity: 87.5 dB

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$145.95

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DS18 EXL-X12.2D

2500W Peak (1250W RMS) 12" EXL-X Series Dual 2-ohm Car Subwoofer

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DS18 EXL-X12.2D

2500W Peak (1250W RMS) 12" EXL-X Series Dual 2-ohm Car Subwoofer

• Peak Power: 2500 watts
• RMS Power: 1250 watts
• Non-Pressed Paper Cone
• Foam Surround
• Impedance: Dual 2 ohm
• Mount depth: 7"
• Sensitivity: 88 dB

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DS18 EBM-FFPUNI-4X8

Empty Quad 8" Vented Enclosure

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DS18 EBM-FFPUNI-4X8

Empty Quad 8" Vented Enclosure

• Empty 8" Quad Ported Subwoofer Enclosure
• 3/4" medium density fiberboard construction with sprayliner finish
• Vented front-firing design enhances sound projection
• Under seat enclosure mounting

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$479.95

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DS18 EXCL-FORDBASS.DF/17-UP

Empty Dual 10" Sealed Rear Underseat Enclosure for select 2017-2025 F-150

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DS18 EXCL-FORDBASS.DF/17-UP

Empty Dual 10" Sealed Rear Underseat Enclosure for select 2017-2025 F-150

• Empty 10" Dual Sealed Subwoofer Enclosure
• 3/4" medium density fiberboard construction with premium carpet finish
• Sealed down-firing design
• Under rear seat enclosure mounting

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DS18 PSW12.2D

1200W Peak (600W RMS) 12" PS Series Dual 2-ohm Marine and Powersports Shallow Subwoofer

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DS18 PSW12.2D

1200W Peak (600W RMS) 12" PS Series Dual 2-ohm Marine and Powersports Shallow Subwoofer

• Peak Power: 1200 watts
• RMS Power: 600 watts
• Impedance: Dual 2 ohm
• Water-Resistant Paper Cone
• Rubber Surround
• Mount depth: 3.3"
• Sensitivity: 85 dB

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• Peak Power: 1200 watts
• RMS Power: 600 watts
• Impedance: Dual 2 ohm
• Water-Resistant Paper Cone
• Rubber Surround
• Mount depth: 3.3"
• Sensitivity: 85 dB

DS18 ZXI-212LD.RG

4000W Peak (2000W RMS) Loaded Dual 12" Ported Enclosure

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DS18 ZXI-212LD.RG

4000W Peak (2000W RMS) Loaded Dual 12" Ported Enclosure

• Ported enclosure with 2 12" ZXI Series Subwoofer
• 2000 watts RMS (4000 watts Peak)
• Final Impedance: 1-ohm
• Dimensions: 19.7" L x 14.5" H x 36.22" W x 21.65" W2

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DS18 SB212

1400W Peak (700W RMS) Loaded Dual 12" Sealed Shallow Enclosure

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DS18 SB212

1400W Peak (700W RMS) Loaded Dual 12" Sealed Shallow Enclosure

• Sealed enclosure with 2 12" Subwoofer
• 700 watts RMS (1400 watts Peak)
• Shallow and compact enclosure construction
• Final Impedance: 1-ohm
• Dimensions: 38.75" L x 15.25" H x 5.25" W x 7.5" W2

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DS18 JSUB.2

Empty Dual 12" Ported Enclosure with RGB LED Lights for select 2007-2024 Wrangler Unlimited and Wrangler Unlimited (JK)

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DS18 JSUB.2

Empty Dual 12" Ported Enclosure with RGB LED Lights for select 2007-2024 Wrangler Unlimited and Wrangler Unlimited (JK)

• 12" Dual Ported Subwoofer Enclosure
• 2/5" Medium Density Fiberboard (MDF) construction
• Total box volume: 3.2 cubic feet
• Compatible with select 2007-2024 Wrangler Unlimited and Wrangler Unlimited (JK)

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$599.95

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DS18 PRO-W10.4SNEO

1600W Peak (800W RMS) 10" PRO Series Single 4-ohm Powersports Subwoofer

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DS18 PRO-W10.4SNEO

1600W Peak (800W RMS) 10" PRO Series Single 4-ohm Powersports Subwoofer

• Peak Power: 800 watts
• RMS Power: 400 watts
• Impedance: Single 4 ohm
• Water-Resistant Paper Cone
• Rubber Surround
• Mount depth: 4.25"
• Sensitivity: 91 dB

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DS18 ZXI-112LD.RG

2000W Peak (1000W RMS) Loaded Single 12" Rugged Vented Enclosure

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DS18 ZXI-112LD.RG

2000W Peak (1000W RMS) Loaded Single 12" Rugged Vented Enclosure

• Ported armored rugged enclosure with 1 12" ZXI Series Subwoofer
• 1000 watts RMS (2000 watts Peak)
• Final Impedance: 1-ohm
• Dimensions: 23.15" L x 14.5" H x 17.72" W x 19.7" W2

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DS18 EXCL-RAMBASS.DF/21-UP.LDPKG

2400W Peak (1200W RMS) Loaded Dual 10" Sealed Enclosure and Amplifier Package for select 2021-2024 3500 and 2500 and 1500

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DS18 EXCL-RAMBASS.DF/21-UP.LDPKG

2400W Peak (1200W RMS) Loaded Dual 10" Sealed Enclosure and Amplifier Package for select 2021-2024 3500 and 2500 and 1500

• 10" Amplified Loaded Subwoofer System
• 1200 watts RMS
• Includes two DS18 IXS10.4D subwoofers
• Includes DS18 ZR1500.1D amplifier
• Variable bass boost
• 3/4" MDF construction with leather-carpet finish
• Down firing under rear seat enclosure design

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List price $2447.99
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DS18 EXL-TR15.4D

5000W Peak (2500W RMS) 15" EXL Series Dual 4-ohm Car Subwoofer

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DS18 EXL-TR15.4D

5000W Peak (2500W RMS) 15" EXL Series Dual 4-ohm Car Subwoofer

• Peak Power: 5000 watts
• RMS Power: 2500 watts
• Impedance: Dual 4 ohm
• Non-Pressed Paper with Epoxy Coating cone
• Foam surround
• Mount depth: 9.2"
• Sensitivity: 84 dB

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List price $647.99
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DS18 SLG-UDSD6

Empty Dual 6.5" Sealed Under Dash Enclosure for select 2015-2019 vehicles from Polaris

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DS18 SLG-UDSD6

Empty Dual 6.5" Sealed Under Dash Enclosure for select 2015-2019 vehicles from Polaris

• 6.5" Dual Sealed Subwoofer Enclosure for select 2015-2019 vehicles from Polaris
• Medium Density Fiberboard (MDF) construction
• Total box volume: 0.3 cubic feet
• Built-in damping material inside
• Installation hardware and wiring included
• IP65 rated water resistant

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DS18 SRW8.4

300W Peak (150W RMS) 8" SRW Series Single 4-ohm Shallow Subwoofer

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DS18 SRW8.4

300W Peak (150W RMS) 8" SRW Series Single 4-ohm Shallow Subwoofer

• Peak Power: 300 watts
• RMS Power: 150 watts
• Impedance: Single 4 ohm
• Paper Cone Material
• Rubber Surround
• Mount depth: 2.95"
• Sensitivity: 86 dB

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DS18 ZXI12.4D

2000W Peak (1000W RMS) 12" ZXI Series Dual 4-ohm Car Subwoofer

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DS18 ZXI12.4D

2000W Peak (1000W RMS) 12" ZXI Series Dual 4-ohm Car Subwoofer

• Peak Power: 2000 watts
• RMS Power: 1000 watts
• Non-Pressed Paper Cone
• Foam Surround
• Impedance: Dual 4 ohm
• Mount depth: 7.55"
• Sensitivity: 89.2 dB

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$323.95

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