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2018 Silverado 1500
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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.
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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Hifonics HFX12D4

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

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Hifonics HFX12D4

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

• Peak Power: 800 watts
• RMS Power: 400 watts
• Impedance: Dual 4 ohm
• cone
• Treated Foam surround
• Mount depth: 5.61"
• Sensitivity: 86 dB

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Fast 2-day shipping to OH. Get it Thu, Nov. 20

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Was $69.99 Details
$34.95

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• Peak Power: 800 watts
• RMS Power: 400 watts
• Impedance: Dual 4 ohm
• cone
• Treated Foam surround
• Mount depth: 5.61"
• Sensitivity: 86 dB

Hifonics HEW6D4-500P

500W RMS Loaded Single 6" Amplified Vented Enclosure

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Hifonics HEW6D4-500P

500W RMS Loaded Single 6" Amplified Vented Enclosure

• 6" Amplified Loaded Subwoofer System
• 500 watts RMS
• Built-In Class D Amplifier
• Variable Bass Boost
• Speaker-Level Inputs via RCA
• Wired Remote Bass Level Control

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FREE shipping to OH. Delivers Nov. 29 - Dec. 6
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VIP Product Get $45.00 in rewards to spend later

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Universal Fitment Icon Universal-fit, works with nearly all vehicles.

Was $499.99 Details
$449.99

Available

Ships in 10-14 days

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• 6" Amplified Loaded Subwoofer System
• 500 watts RMS
• Built-In Class D Amplifier
• Variable Bass Boost
• Speaker-Level Inputs via RCA
• Wired Remote Bass Level Control

Hifonics HEW8D2

1200W Peak (600W RMS) 8" Hifonics Elite Series Dual 2-ohm Subwoofer

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Hifonics HEW8D2

1200W Peak (600W RMS) 8" Hifonics Elite Series Dual 2-ohm Subwoofer

• Peak Power: 1200 watts
• RMS Power: 600 watts
• Impedance: Dual 2 ohm
• Polypropylene Cone
• Double Stitched Foam Surround
• Mount depth: 5.66"
• Sensitivity: 81.2 dB

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FREE 2-day shipping to OH. Get it Thu, Nov. 20
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VIP Product Get $16.90 in rewards to spend later

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Universal Fitment Icon Universal-fit, works with nearly all vehicles.

$169.00

In stock

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Hifonics HEW12D4

1600W Peak (800W RMS) 12" Hifonics Elite Series Dual 4-ohm Subwoofer

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Hifonics HEW12D4

1600W Peak (800W RMS) 12" Hifonics Elite Series Dual 4-ohm Subwoofer

• Peak Power: 1600 watts
• RMS Power: 800 watts
• Impedance: Dual 4 ohm
• Polypropylene Cone
• Double Stitched Foam Surround
• Mount depth: 7.32"
• Sensitivity: 85.3 dB

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FREE 2-day shipping to OH. Get it Thu, Nov. 20

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Universal Fitment Icon Universal-fit, works with nearly all vehicles.

$239.00

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Hifonics HEW8D4S

500W Peak (250W RMS) 8" Hifonics Elite Series Dual 4-ohm Shallow Subwoofer

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Hifonics HEW8D4S

500W Peak (250W RMS) 8" Hifonics Elite Series Dual 4-ohm Shallow Subwoofer

• Peak Power: 500 watts
• RMS Power: 250 watts
• Impedance: Dual 4 ohm
• Woven Fiber Cone
• UV Treated Foam Surround
• Mount depth: 2.63"
• Sensitivity: 82 dB

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FREE 2-day shipping to OH. Get it Thu, Nov. 20
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Universal Fitment Icon Universal-fit, works with nearly all vehicles.

Was $129.99 Details
$109.99

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Hifonics HEW15D4

3000W Peak (1500W RMS) 15" Hifonics Elite Series Dual 4-ohm Subwoofer

HEW15D4 big
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Hifonics HEW15D4

3000W Peak (1500W RMS) 15" Hifonics Elite Series Dual 4-ohm Subwoofer

• Peak Power: 3000 watts
• RMS Power: 1500 watts
• Impedance: Dual 4 ohm
• Polypropylene Cone
• Double Stitched Foam Surround
• Mount depth:
• Sensitivity: 87.5 dB

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FREE 2-day shipping to OH. Get it Thu, Nov. 20
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VIP Product Get $26.90 in rewards to spend later

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Universal Fitment Icon Universal-fit, works with nearly all vehicles.

$269.00

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Hifonics HEW10D4S

600W Peak (300W RMS) 10" Hifonics Elite Series Dual 4-ohm Shallow Subwoofer

HEW10D4S big
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Hifonics HEW10D4S

600W Peak (300W RMS) 10" Hifonics Elite Series Dual 4-ohm Shallow Subwoofer

• Peak Power: 600 watts
• RMS Power: 300 watts
• Impedance: Dual 4 ohm
• Woven Fiber Cone
• UV Treated Foam Surround
• Mount depth: 2.99"
• Sensitivity: 83 dB

shipping truck icon
FREE 2-day shipping to OH. Get it Thu, Nov. 20
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VIP Product Get $13.00 in rewards to spend later

empty

Universal Fitment Icon Universal-fit, works with nearly all vehicles.

Was $149.99 Details
$129.99

In stock

Add to Cart

Hifonics HEW12D4S

600W Peak (300W RMS) 12" Hifonics Elite Series Dual 4-ohm Subwoofer

HEW12D4S big
Go to item page Right Arrow Icon of Right Arrow

Hifonics HEW12D4S

600W Peak (300W RMS) 12" Hifonics Elite Series Dual 4-ohm Subwoofer

• Peak Power: 600 watts
• RMS Power: 300 watts
• Impedance: Dual 4 ohm
• Woven Fiber Cone
• UV Treated Foam Surround
• Mount depth: 3.17"
• Sensitivity: 85 dB

shipping truck icon
FREE 2-day shipping to OH. Get it Thu, Nov. 20
VIP Star Icon

VIP Product Get $15.00 in rewards to spend later

empty

Universal Fitment Icon Universal-fit, works with nearly all vehicles.

Was $169.99 Details
$149.99

In stock

Add to Cart

Hifonics HEW8D4-500P

500W RMS Loaded Single 8" Amplified Vented Enclosure

HEW8D4-500P big
Go to item page Right Arrow Icon of Right Arrow

Hifonics HEW8D4-500P

500W RMS Loaded Single 8" Amplified Vented Enclosure

• 8" Amplified Loaded Subwoofer System
• 500 watts RMS
• Built-In Class D Amplifier
• Variable Bass Boost
• Speaker-Level Inputs via RCA
• Wired Remote Bass Level Control

shipping truck icon
FREE shipping to OH. Delivers Nov. 29 - Dec. 6
VIP Star Icon

VIP Product Get $49.00 in rewards to spend later

empty

Universal Fitment Icon Universal-fit, works with nearly all vehicles.

Was $539.99 Details
$489.99

Available

Ships in 10-14 days

Add to Cart

• 8" Amplified Loaded Subwoofer System
• 500 watts RMS
• Built-In Class D Amplifier
• Variable Bass Boost
• Speaker-Level Inputs via RCA
• Wired Remote Bass Level Control

Hifonics HEW10D4-500P

500W RMS Loaded Single 10" Amplified Vented Enclosure

HEW10D4-500P big
Go to item page Right Arrow Icon of Right Arrow

Hifonics HEW10D4-500P

500W RMS Loaded Single 10" Amplified Vented Enclosure

• 10" Amplified Loaded Subwoofer System
• 500 watts RMS
• Built-In Class D Amplifier
• Variable Bass Boost
• Speaker-Level Inputs via RCA
• Wired Remote Bass Level Control

shipping truck icon
FREE shipping to OH. Delivers Nov. 29 - Dec. 6

empty

Universal Fitment Icon Universal-fit, works with nearly all vehicles.

Was $569.99 Details
$539.99

Available

Ships in 10-14 days

Add to Cart

• 10" Amplified Loaded Subwoofer System
• 500 watts RMS
• Built-In Class D Amplifier
• Variable Bass Boost
• Speaker-Level Inputs via RCA
• Wired Remote Bass Level Control

 
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    All About

    Hifonics Car Subwoofers
    Hifonics subwoofers are capable of delivering some serious window rattling bass on a budget. Hifonics car subwoofers are a compact yet effective way to add heart-pounding bass to any car. Hifonics amplifiers are available in 10", 12" and 15" designs in both dual 2 and 4 ohm configurations. Every Hifonic subwoofer features the same high quality construction Hifonics is known for and is designed for maximum excursion and performance. These quality subwoofers push up to 1600 watts of clean, powerful low end to give your sound system that extra bump that it needs.
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