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Belva Sub Box 1SV12G (Gray)

Single 12" Vented MDF Enclosure

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Single 12" Vented MDF Enclosure

• Single 12" Vented MDF Enclosure
• Holds one 12" subwoofer
• 3/4 MDF (Medium Density Fiberboard) Construction
• Durable gray carpeting
• Gold Terminals
• Internal Box Volume: 1.8 cubic ft.

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

97
Was $109.99 Details
$69.99

In stock

Only 2 Left!

• Single 12" Vented MDF Enclosure
• Holds one 12" subwoofer
• 3/4 MDF (Medium Density Fiberboard) Construction
• Durable gray carpeting
• Gold Terminals
• Internal Box Volume: 1.8 cubic ft.

Dual 12" 3/4 MDF Sealed Subwoofer Enclosure (Belva MDFD12)

Dual 12-inch Sealed Car Sub Box Made with 3/4" MDF and lined w/Polyfil (2.46 cu ft Airspace - 12SQB)

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Dual 12-inch Sealed Car Sub Box Made with 3/4" MDF and lined w/Polyfil (2.46 cu ft Airspace - 12SQB)

• 3/4" Medium Density Fiberboard Construction
• Durable Black Carpeting
• Pre-Lined with Poly-Fil
• Gold Speaker Terminals

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

117
$119.99

In stock

• 3/4" Medium Density Fiberboard Construction
• Durable Black Carpeting
• Pre-Lined with Poly-Fil
• Gold Speaker Terminals

Atrend TL-12SV

Single 12" Slammer Series Vented Subwoofer Enclosure (Coated Finish)

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Single 12" Slammer Series Vented Subwoofer Enclosure (Coated Finish)

• 12" Medium Vented Subwoofer Enclosure
• Coated Tough Guard Finish
• CNC Grooved Custom Finish
• Miter & Dado Groove Panels
• Rounded Edges

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

1
$149.95

In stock

Only 1 Left!

• 12" Medium Vented Subwoofer Enclosure
• Coated Tough Guard Finish
• CNC Grooved Custom Finish
• Miter & Dado Groove Panels
• Rounded Edges

Atrend 10TKV

10" Single Universal Truck Style Vented Subwoofer Enclosure

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10" Single Universal Truck Style Vented Subwoofer Enclosure

• 10" Single Universal Truck Style Vented Subwoofer Enclosure
• Premium carpeted Finish
• Silver Spring Loaded Terminal Cups
• Completely Miter and Dado Panels
• Glued and Braced with Fasteners

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

3
$89.99

In stock

• 10" Single Universal Truck Style Vented Subwoofer Enclosure
• Premium carpeted Finish
• Silver Spring Loaded Terminal Cups
• Completely Miter and Dado Panels
• Glued and Braced with Fasteners

MTX SLH10X2

Unloaded 10" Sledgehammer Dual Subwoofer Enclosure

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Unloaded 10" Sledgehammer Dual Subwoofer Enclosure

• 10" Dual Ported Subwoofer Enclosure
• 3/4" Medium Density Fiberboard (MDF) construction
• Total box volume:
• Progressive slot port for more bass and less noise
• Vinyl and carpet finish with embroidered MTX logo at the top
• Quick and easy assembly as screws and cables are included

shipping truck icon Free shipping in USA. Provide zip for delivery date.

empty

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

Was $169.95 Details
$149.95

In stock

Only 2 Left!

• 10" Dual Ported Subwoofer Enclosure
• 3/4" Medium Density Fiberboard (MDF) construction
• Total box volume:
• Progressive slot port for more bass and less noise
• Vinyl and carpet finish with embroidered MTX logo at the top
• Quick and easy assembly as screws and cables are included

GP Audio 15" Ported MDF Subwoofer Enclosure

Single 15" Ported 3/4" (3 cubic ft) Tru Spec Series Subwoofer Enclosure (Made in the USA)

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Single 15" Ported 3/4" (3 cubic ft) Tru Spec Series Subwoofer Enclosure (Made in the USA)

• 15" Single Ported Subwoofer Enclosure
• 3/4" Medium Density Fiberboard (MDF) construction
• Total box volume: 3 cubic feet
• Single double flush baffle
• Port Area: 44"
• Flush Trim Diameter: 15.75"

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empty

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

3
Was $279.99 Details
$199.99

In stock

Only 2 Left!

• 15" Single Ported Subwoofer Enclosure
• 3/4" Medium Density Fiberboard (MDF) construction
• Total box volume: 3 cubic feet
• Single double flush baffle
• Port Area: 44"
• Flush Trim Diameter: 15.75"

Atrend 12SVR (Black)

Single 12" Black Carbon Fiber Vented Subwoofer Enclosure

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Single 12" Black Carbon Fiber Vented Subwoofer Enclosure

• 12" Single Chambered Vented Black Subwoofer Enclosure
• Carbon Fiber Painted Finish
• Silver Spring Loaded Terminal Cups
• Completely Miter and Dado Panels
• Embroidery Finish • Color: Carbon Fiber Black

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

Was $174.95 Details
$149.99

In stock

Only 1 Left!

• 12" Single Chambered Vented Black Subwoofer Enclosure
• Carbon Fiber Painted Finish
• Silver Spring Loaded Terminal Cups
• Completely Miter and Dado Panels
• Embroidery Finish • Color: Carbon Fiber Black

Atrend 12SQL

12" Single Medium Pro Series Sealed Subwoofer Enclosure

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12" Single Medium Pro Series Sealed Subwoofer Enclosure

• 12" Single Medium Pro Series Sealed Subwoofer Enclosure
• Premium carpeted Finish
• Silver Spring Loaded Terminal Cups
• Completely Miter and Dado Panels
• Glued and Braced with Fasteners

shipping truck icon Free shipping in USA. Provide zip for delivery date.

empty

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

9
Was $79.99 Details
$69.99

In stock

Only 3 Left!

• 12" Single Medium Pro Series Sealed Subwoofer Enclosure
• Premium carpeted Finish
• Silver Spring Loaded Terminal Cups
• Completely Miter and Dado Panels
• Glued and Braced with Fasteners

Atrend 12TKD

12" Dual Universal Truck Style Sealed Subwoofer Enclosure

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12" Dual Universal Truck Style Sealed Subwoofer Enclosure

• 12" Dual Universal Truck Style Sealed Subwoofer Enclosure
• Premium carpeted Finish
• Silver Spring Loaded Terminal Cups
• Completely Miter and Dado Panels
• Glued and Braced with Fasteners

shipping truck icon Free shipping in USA. Provide zip for delivery date.

empty

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

7
$119.95

In stock

Only 1 Left!

• 12" Dual Universal Truck Style Sealed Subwoofer Enclosure
• Premium carpeted Finish
• Silver Spring Loaded Terminal Cups
• Completely Miter and Dado Panels
• Glued and Braced with Fasteners

Atrend 12TKV

12" Single Universal Truck Style Vented Subwoofer Enclosure

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12" Single Universal Truck Style Vented Subwoofer Enclosure

•12" Single Universal Truck Style Vented Subwoofer Enclosure
• Premium carpeted Finish
• Silver Spring Loaded Terminal Cups
• Completely Miter and Dado Panels
• Glued and Braced with Fasteners

shipping truck icon Free shipping in USA. Provide zip for delivery date.

empty

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

1
$85.99

In stock

Only 2 Left!

•12" Single Universal Truck Style Vented Subwoofer Enclosure
• Premium carpeted Finish
• Silver Spring Loaded Terminal Cups
• Completely Miter and Dado Panels
• Glued and Braced with Fasteners

Atrend 15KDV

15" Dual Vented Square Subwoofer Enclosure for Kicker L5 and L7 Subwoofers

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15" Dual Vented Square Subwoofer Enclosure for Kicker L5 and L7 Subwoofers

• 15" Dual Vented Square Subwoofer Enclosure for Kicker L5 and L7 Subwoofers
• Premium Carpeted Finish
• Silver Spring Loaded Terminal Cups
• Completely Miter and Dado Panels
• Glued and Braced with Fasteners

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empty

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

5
$149.99

In stock

Only 1 Left!

• 15" Dual Vented Square Subwoofer Enclosure for Kicker L5 and L7 Subwoofers
• Premium Carpeted Finish
• Silver Spring Loaded Terminal Cups
• Completely Miter and Dado Panels
• Glued and Braced with Fasteners

Atrend 12DVNC

12" Dual Carbon Fiber Vented Enclosure for Alpine E/S/R/X Series Subwoofers

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12" Dual Carbon Fiber Vented Enclosure for Alpine E/S/R/X Series Subwoofers

• 12" Dual Ported Subwoofer Enclosure
• 3/4" Medium Density Fiberboard (MDF) construction
• Total box volume: 1.66 cubic feet
• Exclusively designed for Alpine E/S/R/X subwoofers

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empty

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

2
$149.99

In stock

Only 2 Left!

• 12" Dual Ported Subwoofer Enclosure
• 3/4" Medium Density Fiberboard (MDF) construction
• Total box volume: 1.66 cubic feet
• Exclusively designed for Alpine E/S/R/X subwoofers

Atrend 10SQL

10" Single Medium Pro Series Sealed Subwoofer Enclosure

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10" Single Medium Pro Series Sealed Subwoofer Enclosure

• 10" Single Medium Pro Series Sealed Subwoofer Enclosure
• Premium carpeted Finish
• Silver Spring Loaded Terminal Cups
• Completely Miter and Dado Panels
• Glued and Braced with Fasteners

shipping truck icon Free shipping in USA. Provide zip for delivery date.

empty

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

14
Was $89.99 Details
$59.99

In stock

• 10" Single Medium Pro Series Sealed Subwoofer Enclosure
• Premium carpeted Finish
• Silver Spring Loaded Terminal Cups
• Completely Miter and Dado Panels
• Glued and Braced with Fasteners

Atrend 10SME

10" Single Sealed Ultra Slim Series Subwoofer Enclosure

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10" Single Sealed Ultra Slim Series Subwoofer Enclosure

•10" Single Sealed Ultra Slim Series Subwoofer Enclosure
• Premium carpeted Finish
• Silver Spring Loaded Terminal Cups
• Completely Miter and Dado Panels
• Glued and Braced with Fasteners

Save 10% at Checkout!
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Universal Fitment Icon Universal-fit, works with nearly all vehicles.

6
$69.95

In stock

Only 3 Left!

•10" Single Sealed Ultra Slim Series Subwoofer Enclosure
• Premium carpeted Finish
• Silver Spring Loaded Terminal Cups
• Completely Miter and Dado Panels
• Glued and Braced with Fasteners

Atrend 15SQV

15" Single Pro Series Vented Subwoofer Enclosure

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15" Single Pro Series Vented Subwoofer Enclosure

• 15" Single Pro Series Vented Subwoofer Enclosure
• Premium carpeted Finish
• Silver Spring Loaded Terminal Cups
• Completely Miter and Dado Panels
• Glued and Braced with Fasteners

shipping truck icon Free shipping in USA. Provide zip for delivery date.

empty

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

12
$109.95

In stock

Only 3 Left!

• 15" Single Pro Series Vented Subwoofer Enclosure
• Premium carpeted Finish
• Silver Spring Loaded Terminal Cups
• Completely Miter and Dado Panels
• Glued and Braced with Fasteners

MTX SLH10X2S

10" Sledgehammer Unloaded Enclosure For Dual Square Subwoofers

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10" Sledgehammer Unloaded Enclosure For Dual Square Subwoofers

• 10" Dual Ported Subwoofer Enclosure
• 3/4" Medium Density Fiberboard (MDF) construction
• Total box volume: 2.18 cubic feet
• Progressive slot port for more bass and less noise
• Vinyl and carpet finish with embroidered MTX logo at the top
• Quick and easy assembly as screws and cables are included

shipping truck icon Free shipping in USA. Provide zip for delivery date.

empty

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

1
Was $169.95 Details
$149.95

In stock

• 10" Dual Ported Subwoofer Enclosure
• 3/4" Medium Density Fiberboard (MDF) construction
• Total box volume: 2.18 cubic feet
• Progressive slot port for more bass and less noise
• Vinyl and carpet finish with embroidered MTX logo at the top
• Quick and easy assembly as screws and cables are included

Atrend 10TK

10" Single Universal Truck Style Sealed Subwoofer Enclosure

10TK big
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10" Single Universal Truck Style Sealed Subwoofer Enclosure

•10" Single Universal Truck Style Sealed Subwoofer Enclosure
• Premium carpeted Finish
• Silver Spring Loaded Terminal Cups
• Completely Miter and Dado Panels
• Glued and Braced with Fasteners

shipping truck icon Free shipping in USA. Provide zip for delivery date.

empty

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

2
$69.99

In stock

•10" Single Universal Truck Style Sealed Subwoofer Enclosure
• Premium carpeted Finish
• Silver Spring Loaded Terminal Cups
• Completely Miter and Dado Panels
• Glued and Braced with Fasteners

Atrend 12LSV

12" Single Pro Series Vented SPL Subwoofer Enclosure (2.5 Cu Ft Airspace)

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12" Single Pro Series Vented SPL Subwoofer Enclosure (2.5 Cu Ft Airspace)

• 12" Single Pro Series SPL Vented Subwoofer Enclosure
• Premium carpeted Finish
• Silver Spring Loaded Terminal Cups
• Completely Miter and Dado Panels
• Glued and Braced with Fasteners

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VIP Product Get $14.00 in rewards to spend later

empty

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

8
Was $149.99 Details
$139.99

In stock

Only 2 Left!

• 12" Single Pro Series SPL Vented Subwoofer Enclosure
• Premium carpeted Finish
• Silver Spring Loaded Terminal Cups
• Completely Miter and Dado Panels
• Glued and Braced with Fasteners

Atrend 12DQ

12" Dual Medium Pro Series Sealed Subwoofer Enclosure

12DQ big
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12" Dual Medium Pro Series Sealed Subwoofer Enclosure

• 12" Dual Small Pro Series Sealed Subwoofer Enclosure
• Premium carpeted Finish
• Silver Spring Loaded Terminal Cups
• Completely Miter and Dado Panels
• Glued and Braced with Fasteners

shipping truck icon Free shipping in USA. Provide zip for delivery date.

empty

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

15
Was $109.99 Details
$89.99

In stock

Only 3 Left!

• 12" Dual Small Pro Series Sealed Subwoofer Enclosure
• Premium carpeted Finish
• Silver Spring Loaded Terminal Cups
• Completely Miter and Dado Panels
• Glued and Braced with Fasteners

Atrend 12KD

12" Dual Sealed Square Subwoofer Enclosure for Kicker L5 and L7 Subwoofers

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12" Dual Sealed Square Subwoofer Enclosure for Kicker L5 and L7 Subwoofers

• 12" Dual Sealed Square Subwoofer Enclosure for Kicker L5 or L7 Subwoofers
• Premium Carpeted Finish
• Silver Spring Loaded Terminal Cups
• Completely Miter and Dado Panels
• Glued and Braced with Fasteners

shipping truck icon Free shipping in USA. Provide zip for delivery date.
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VIP Product Get $12.00 in rewards to spend later

empty

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

3
$119.99

In stock

Only 3 Left!

• 12" Dual Sealed Square Subwoofer Enclosure for Kicker L5 or L7 Subwoofers
• Premium Carpeted Finish
• Silver Spring Loaded Terminal Cups
• Completely Miter and Dado Panels
• Glued and Braced with Fasteners

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    FAQ for Empty Universal-fit Sub Box Enclosures in 2003 745i

    Q: Can I upgrade or change the Empty Universal-fit Sub Box Enclosures in 2003 BMW 745i?

    A: Yes this page includes all the best Empty Universal-fit Sub Box Enclosures that work in your 745i.

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