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2004 Mazda 6

Universal loaded and/or powered sub box enclosures that fit most vehicles, including your 2004 6.

Universal Sub Boxes (Loaded/Powered) for 2004 Mazda 6


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MTX Audio TNP212D2 Terminator Dual Subwoofer Package + Amplifier Bass Package

1200 Watt Max Dual 12" Terminator Series Loaded Subwoofer Bass System with Amplifier + Amp kit + Capacitor

BB2D,BAK82,TNP212D2 big
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1200 Watt Max Dual 12" Terminator Series Loaded Subwoofer Bass System with Amplifier + Amp kit + Capacitor

• 1200W Peak (2 Subs)
• 400W RMS (2 Subs)
• 48oz. Magnet
• Terminator Series Class D Monoblock Car Amplifier
• Heavy 5/8" MDF Construction
• Black Carpeting

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289
List price $539.93
-11% $480.57

In stock

• 1200W Peak (2 Subs)
• 400W RMS (2 Subs)
• 48oz. Magnet
• Terminator Series Class D Monoblock Car Amplifier
• Heavy 5/8" MDF Construction
• Black Carpeting

Hertz MP 250 D2.3 + 10" Sealed Enclosure

1200W Peak (600W RMS) 10” Mille Legend Series Dual Subwoofer

MP 250 D2.3, MDFS10 big
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1200W Peak (600W RMS) 10” Mille Legend Series Dual Subwoofer

• 1200 Watts Max
• 600 Watts RMS
• Mineral-injected paper cone with rubber surround
• Aluminum alloy basket
• 2 Ohm Impedance
• Top-mount depth: 5-9/16"

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121
List price $674.99
-18% $554.99

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NVX QBSTA with Amplifier Wiring Kit

900W Peak (300W RMS) 11" Quick Bass Spare Tire Amplified Subwoofer System with NVX 8 Gauge Amp Kit

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900W Peak (300W RMS) 11" Quick Bass Spare Tire Amplified Subwoofer System with NVX 8 Gauge Amp Kit

• 11" Spare Tire Subwoofer System
• Built-In Class D Amplifier
• Top-mount amplifier controls
• Speaker-Level Inputs
• Wired Remote Bass Level Control
• Complete 8 Gauge Amplifier Installation Kit
• Pre-terminated seamless power and ground ring terminals

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77
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-26% $310.83

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• 11" Spare Tire Subwoofer System
• Built-In Class D Amplifier
• Top-mount amplifier controls
• Speaker-Level Inputs
• Wired Remote Bass Level Control
• Complete 8 Gauge Amplifier Installation Kit
• Pre-terminated seamless power and ground ring terminals

BAK82,46CXA4001T,43DC122 big
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1200W 12" Comp Series Bass Package

• 600W Peak
• 300W RMS
• 2 Ohm Final Impedance
• SoloKon Cone
• Polyfoam Ribbed Surround
• Monogrammed Carbon Fiber Front
• Tough Black Carpeting
• 3/4" MDF Construction

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125
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-16% $529.98

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• 600W Peak
• 300W RMS
• 2 Ohm Final Impedance
• SoloKon Cone
• Polyfoam Ribbed Surround
• Monogrammed Carbon Fiber Front
• Tough Black Carpeting
• 3/4" MDF Construction

NVX Single 12" Complete Bass System w/ Ported Box, Amp, and Wiring Kit

Single 12" Slot Ported 3/4" MDF Black Carpeted Subwoofer Enclosure w/ N-Series v3 12" Dual Car Subwoofer, Monoblock Car Amplifier and 8 Gauge Amplifier Wiring Kit

NE121P_NBASSPACKAGEKIT big
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Single 12" Slot Ported 3/4" MDF Black Carpeted Subwoofer Enclosure w/ N-Series v3 12" Dual Car Subwoofer, Monoblock Car Amplifier and 8 Gauge Amplifier Wiring Kit

• Loaded Box with Subwoofer
• Includes Amplifier and Wiring Kit

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114
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-31% $399.95

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NVX QBUS8P Subwoofer and XKIT82 Amp Kit

NVX 300W Peak 8" Amplified Under Seat Subwoofer System with Ported Enclosure and 8 Gauge 100% OFC 2-Channel Amplifier Wiring Kit with RCA

QBUS8P_XKIT82 big
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NVX 300W Peak 8" Amplified Under Seat Subwoofer System with Ported Enclosure and 8 Gauge 100% OFC 2-Channel Amplifier Wiring Kit with RCA

  • NVX QBUS8P 300W Peak 8-Inch Amplified Under Seat Subwoofer System
  • Quick Bass Universal System with Ported Enclosure for Space-Saving Performance
  • XKIT82 8 Gauge 100% Oxygen Free Copper 2-Channel Amplifier Wiring Kit
  • Full Spec OFC Construction Designed for Amplifiers up to 800 Watts
  • Complete Installation Setup Includes RCA Cables and Essential Wiring Hardware
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70
List price $287.98
-20% $229.98

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  • NVX QBUS8P 300W Peak 8-Inch Amplified Under Seat Subwoofer System
  • Quick Bass Universal System with Ported Enclosure for Space-Saving Performance
  • XKIT82 8 Gauge 100% Oxygen Free Copper 2-Channel Amplifier Wiring Kit
  • Full Spec OFC Construction Designed for Amplifiers up to 800 Watts
  • Complete Installation Setup Includes RCA Cables and Essential Wiring Hardware
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MTX + Rockford Fosgate 500 Watts RMS Bass Bundle

MTX TNE212D Dual 12" Loaded Subwoofer Bass Enclosure + Rockford Fosgate R500X1D 500W RMS Prime Series Class D Monoblock Amplifier

R500X1D,TNE212D big
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MTX TNE212D Dual 12" Loaded Subwoofer Bass Enclosure + Rockford Fosgate R500X1D 500W RMS Prime Series Class D Monoblock Amplifier

• 2 ohm: 500 watts x 1 chan. RMS
• 2" Aluminum single 4 ohm voice coil w/ 48oz. Magnet per Subwoofer
• CEA-2006 compliant amplifier
• Efficient Class-D circuit topology
• Included Remote PLC (Punch Level Control)

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-16% $469.94

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• 2 ohm: 500 watts x 1 chan. RMS
• 2" Aluminum single 4 ohm voice coil w/ 48oz. Magnet per Subwoofer
• CEA-2006 compliant amplifier
• Efficient Class-D circuit topology
• Included Remote PLC (Punch Level Control)

MTX Magnum MB210SP 10" 400W RMS Dual Car Loaded Subwoofer Sub Woofer+Box+Amp Kit

1200W Dual 10" Loaded & Ported Enclosure with Monoblock Subwoofer Amplifier Included Package

BAK82,MB210SP big
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1200W Dual 10" Loaded & Ported Enclosure with Monoblock Subwoofer Amplifier Included Package

• 800W Peak
• Polymer coated pulp cone
• Foam surround
• 4 Ohm
• Magna Bass Mono Amplifier
• 5/8" MDF construction

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162
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-19% $284.95

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• 800W Peak
• Polymer coated pulp cone
• Foam surround
• 4 Ohm
• Magna Bass Mono Amplifier
• 5/8" MDF construction

Hertz MP 300 D2.3 + Free 12" Sealed Enclosure

12" Mille Pro Series DVC 1200W Dual 2 Ohm Car Subwoofer

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12" Mille Pro Series DVC 1200W Dual 2 Ohm Car Subwoofer

• 1200 Watts Max
• 600 Watts RMS
• Pressed-pulp cone with mineral powders cone material
• Aluminum alloy basket
• 2 Ohm Impedance
• Top-mount depth: 6-1/2"

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• 1200 Watts Max
• 600 Watts RMS
• Pressed-pulp cone with mineral powders cone material
• Aluminum alloy basket
• 2 Ohm Impedance
• Top-mount depth: 6-1/2"

MTX TNP212D2 12" 1200W Dual Car Subwoofer Box + Amplifier and Install Kit

Dual 12" Amplified Terminator Loaded Subwoofer Bass System with Install Kit

BAK82,TNP212D2 big
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Dual 12" Amplified Terminator Loaded Subwoofer Bass System with Install Kit

• 1200W Peak (2 Subs)
• 400W RMS (2 Subs)
• 48oz. Magnet
• Terminator Series Class D Monoblock Car Amplifier
• Heavy 5/8" MDF Construction
• Black Carpeting
• Complete 8 Gauge 2-Channel Amplifier Installation Kit
• Designed Specifically For Car Audio Systems Up to 500 Watts RMS
• Premium Power and Ground Wire Provides Optimal Power Transfer
• Mini-ANL Fuse Holder With A 60 Amp Mini-ANL fuse

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255
List price $449.94
-14% $387.44

In stock

• 1200W Peak (2 Subs)
• 400W RMS (2 Subs)
• 48oz. Magnet
• Terminator Series Class D Monoblock Car Amplifier
• Heavy 5/8" MDF Construction
• Black Carpeting
• Complete 8 Gauge 2-Channel Amplifier Installation Kit
• Designed Specifically For Car Audio Systems Up to 500 Watts RMS
• Premium Power and Ground Wire Provides Optimal Power Transfer
• Mini-ANL Fuse Holder With A 60 Amp Mini-ANL fuse

NVX NE81P w/ Sundown Audio XV38D4

Single 8" Slot Ported 3/4" MDF Black Carpeted Subwoofer Enclosure – 0.75 Cu. Ft. with Polyfil and NVX Logo w/800W RMS 8" X Series V3 Dual 2-ohm Car Subwoofer

NE81P_XV38D4 big
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Single 8" Slot Ported 3/4" MDF Black Carpeted Subwoofer Enclosure – 0.75 Cu. Ft. with Polyfil and NVX Logo w/800W RMS 8" X Series V3 Dual 2-ohm Car Subwoofer

• 8" Single Ported Subwoofer Enclosure
• 3/4" Medium Density Fiberboard (MDF) construction
• Internal box volume: .75 cubic feet
• Premium Black Carpet with Black NVX Logo

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• 8" Single Ported Subwoofer Enclosure
• 3/4" Medium Density Fiberboard (MDF) construction
• Internal box volume: .75 cubic feet
• Premium Black Carpet with Black NVX Logo

Kenwood eXcelon X503-1 with Excelon X502-1

1000W Peak (500W RMS) eXcelon Series Monoblock Car Amplifier with Bass Remote + Dual 12” Ported Subwoofer Enclosure

X503-1_P-XW1221D big
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1000W Peak (500W RMS) eXcelon Series Monoblock Car Amplifier with Bass Remote + Dual 12” Ported Subwoofer Enclosure

• 300 watts x 1 channel @ 4 ohm
• 500 watts x 1 channel @ 2 ohm
• Total RMS Power: 500 watts
• Class D 2 ohm Stable Monoblock Amplifier

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2
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-17% $718.99

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• 300 watts x 1 channel @ 4 ohm
• 500 watts x 1 channel @ 2 ohm
• Total RMS Power: 500 watts
• Class D 2 ohm Stable Monoblock Amplifier

Rockford Fosgate P500-12P with Amplifier Wiring Kit

1000W Peak (500W RMS) 12” Punch Series Amplified Ported Subwoofer Enclosure

P500-12P, BAK82 big
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1000W Peak (500W RMS) 12” Punch Series Amplified Ported Subwoofer Enclosure

• 12" Amplified Loaded Subwoofer System
• 500 watts RMS
• Built-In Class D Amplifier
• Variable Bass Boost
• Wired Remote Bass Level Control

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104
List price $589.98
-6% $552.48

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• 12" Amplified Loaded Subwoofer System
• 500 watts RMS
• Built-In Class D Amplifier
• Variable Bass Boost
• Wired Remote Bass Level Control

NVX NE82P w/ Alpine S2-W8D4

Dual 8" Slot Ported 3/4" MDF Black Carpeted Subwoofer Enclosure – 1.5 Cu. Ft. with Polyfil and NVX Logo w/8" S-Series Dual 4-ohms Car Subwoofer

NE82P_S2W8D4 big
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Dual 8" Slot Ported 3/4" MDF Black Carpeted Subwoofer Enclosure – 1.5 Cu. Ft. with Polyfil and NVX Logo w/8" S-Series Dual 4-ohms Car Subwoofer

• 8" Dual Ported Subwoofer Enclosure
• 3/4" Medium Density Fiberboard (MDF) construction
• Internal box volume: 1.5 cubic feet
• Premium Black Carpet with Black NVX Logo

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3
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• 8" Dual Ported Subwoofer Enclosure
• 3/4" Medium Density Fiberboard (MDF) construction
• Internal box volume: 1.5 cubic feet
• Premium Black Carpet with Black NVX Logo

NVX NE82P w/Sundown Audio E V.6 8" D2

Dual 8" Slot Ported 3/4" MDF Black Carpeted Subwoofer Enclosure – 1.5 Cu. Ft. with Polyfil and NVX Logo w/300W RMS 8" E Series Dual 2-ohm Subwoofer

NE82P_EV68D2 big
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Dual 8" Slot Ported 3/4" MDF Black Carpeted Subwoofer Enclosure – 1.5 Cu. Ft. with Polyfil and NVX Logo w/300W RMS 8" E Series Dual 2-ohm Subwoofer

• 8" Dual Ported Subwoofer Enclosure
• 3/4" Medium Density Fiberboard (MDF) construction
• Internal box volume: 1.5 cubic feet
• Premium Black Carpet with Black NVX Logo

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2
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• 8" Dual Ported Subwoofer Enclosure
• 3/4" Medium Density Fiberboard (MDF) construction
• Internal box volume: 1.5 cubic feet
• Premium Black Carpet with Black NVX Logo

NVX NE81P w/ Sundown Audio XV38D2

Single 8" Slot Ported 3/4" MDF Black Carpeted Subwoofer Enclosure – 0.75 Cu. Ft. with Polyfil and NVX Logo w/800W RMS 8" X Series V3 Dual 2-ohm Car Subwoofer

NE81P_XV38D2 big
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Single 8" Slot Ported 3/4" MDF Black Carpeted Subwoofer Enclosure – 0.75 Cu. Ft. with Polyfil and NVX Logo w/800W RMS 8" X Series V3 Dual 2-ohm Car Subwoofer

• 8" Single Ported Subwoofer Enclosure
• 3/4" Medium Density Fiberboard (MDF) construction
• Internal box volume: .75 cubic feet
• Premium Black Carpet with Black NVX Logo

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3
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2026-07-30 12:30:00

• 8" Single Ported Subwoofer Enclosure
• 3/4" Medium Density Fiberboard (MDF) construction
• Internal box volume: .75 cubic feet
• Premium Black Carpet with Black NVX Logo

Limited time!
BB1D,BPKG210v2 big
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1000 Watt Complete Car Audio Bass Package

• Includes Everything You Need: Subs, Box, Amp & Wires
• Dual 10" Belva Subwoofers
• Monoblock Amp
• Ported Enclosure
• Complete Amp Kit w/ RCAs

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112
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-31% $264.07

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• Includes Everything You Need: Subs, Box, Amp & Wires
• Dual 10" Belva Subwoofers
• Monoblock Amp
• Ported Enclosure
• Complete Amp Kit w/ RCAs

Alpine SWT-10S2 with Sealed Truck Enclosure

1000W Peak 10" SWT Series Single 2-ohm Shallow Mount Subwoofer

SWT-10S2, 10TK big
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1000W Peak 10" SWT Series Single 2-ohm Shallow Mount Subwoofer

• Peak Power: 1000W
• RMS Power: 350W
• Poly-Mica Dust Cap & Pulp-Kevlar
• Polyurethane Foam Surround w/ H.A.M.R. Surround Technology
• Includes Sealed Truck Enclosure

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Kicker DL7S122 (44DL7S122) and NVX VAD17001v2 Amp + XKIT42 Amp Kit

3000W Peak Loaded Dual 12" Vented Enclosure with 3400W Peak Monoblock Amplifier and 4 Gauge OFC 2-Channel Amplifier Wiring Kit

44DL7S122_VAD17001_XKIT42 big
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3000W Peak Loaded Dual 12" Vented Enclosure with 3400W Peak Monoblock Amplifier and 4 Gauge OFC 2-Channel Amplifier Wiring Kit

  • Kicker DL7S122 3000W Peak Loaded Dual 12 Inch Vented Subwoofer Enclosure
  • NVX VAD17001 v2 3400W Peak Class D Monoblock Marine Certified Amplifier
  • XKIT42 Full Spec 4 Gauge 100% OFC Oxygen Free Copper Wiring Kit
  • Complete Bass Package includes 1500W RMS Subwoofers and 1700W RMS Amp
  • High-performance setup with Bass Remote and 2-Channel RCA cables
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171
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-17% $1,194.69

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  • Kicker DL7S122 3000W Peak Loaded Dual 12 Inch Vented Subwoofer Enclosure
  • NVX VAD17001 v2 3400W Peak Class D Monoblock Marine Certified Amplifier
  • XKIT42 Full Spec 4 Gauge 100% OFC Oxygen Free Copper Wiring Kit
  • Complete Bass Package includes 1500W RMS Subwoofers and 1700W RMS Amp
  • High-performance setup with Bass Remote and 2-Channel RCA cables

MTX Terminator TNP212D2 Dual 12” Subs + Box + Amp Kit + 2 Farad Capacitor

1200 Watt Complete Bass Package with FREE Amp kit and Cap

BB2D,BAK82,TNP212D2 big
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1200 Watt Complete Bass Package with FREE Amp kit and Cap

• 1200W Peak (2 Subs)
• 400W RMS (2 Subs)
• 48oz. Magnet
• Terminator Series Class D Monoblock Car Amplifier
• Heavy 5/8" MDF Construction
• Black Carpeting

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289
List price $539.93
-23% $415.03

In stock

• 1200W Peak (2 Subs)
• 400W RMS (2 Subs)
• 48oz. Magnet
• Terminator Series Class D Monoblock Car Amplifier
• Heavy 5/8" MDF Construction
• Black Carpeting

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    Q: Can I upgrade or change the Universal-fit Loaded Subwoofer Boxes in 2004 Mazda 6?

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