Garage
Shop

See all parts that fit your 1985 528e

Atrend 15SQ

Empty Single 15" Medium Sealed Subwoofer Enclosure

Atrend
Shop all Atrend
highlight-star-icon

• 15" Single Medium Sealed Subwoofer Enclosure
• 3/4" Medium Density Fiberboard (MDF) construction
• Completely miter and dado end panels
• Premium carpeted finish
• Total box volume: 2.00 cubic feet

Learn more about the 15sq

We apologize

This item has been discontinued


Loading...
CV15BT main

Cerwin-Vega CV15BT

Single Din Digital Media Receiver with Bluetooth

3
UTE-73BT main

Alpine UTE-73BT

Single DIN Digital Media Receiver with Bluetooth (SiriusXM Ready)

43
-16.69%

$149.95

List price $180.00

Limited time!
XAV-AX8500 main

Sony XAV-AX8500

10.1" Single DIN Floating Touchscreen Digital Multimedia Receiver with Bluetooth, Wireless Apple CarPlay, and Wired Android Auto (SiriusXM Ready)

2
-20.20%

$798.00

List price $999.99

MVH-S322BT main

Pioneer MVH-S322BT

Single DIN Digital Media Receiver with Bluetooth and Amazon Alexa

7
-13.34%

$129.99

List price $150.00

DEH-S7200BHS main

Pioneer DEH-S7200BHS

Single DIN CD Receiver with Bluetooth, HD Radio and SiriusXM Ready

2
-10.72%

$249.99

List price $280.00

H46 main

Cerwin-Vega H46

300W Peak (100W RMS) 4x6" HED Series 2 Way Coaxial 4-ohm Speakers

-16.67%

$79.99

List price $95.99

KDC-X305 main

Kenwood eXcelon KDC-X305

Single DIN CD Receiver with Bluetooth and Built-in Alexa (Sirius XM Ready)

23
-17.08%

$199.00

List price $240.00

T46 main

Earthquake Sound T46

600W Peak 4x6” TNT Series 2-Way Coaxial 4-ohm Car Speakers

1
-19.20%

$79.99

List price $99.00

KDC-BT782HD main

Kenwood KDC-BT782HD

Single DIN CD Receiver with Bluetooth, Built-in Alexa, and HD Radio Tuner (SiriusXM Ready)

5
-18.89%

$219.00

List price $270.00

Limited time!
CAR1013 main

Jensen CAR1013

10.1" Single DIN Floating Touchscreen Digital Multimedia Receiver with Bluetooth, Wireless Apple CarPlay and Android Auto

5
-11.43%

$309.99

List price $349.99

Description


Atrend brand icon

Authorized dealer


Atrend 15SQ

From design to delivery, Atrend products are tested vigorously to ensure sound quality and accurate engineering. Working with only the latest in computer-automated software and machinery, Atrend continues to be a trend setter in the marketplace. Atrend delivers quality results using only the most efficient engineering and manufacturing processes.

All of Atrend and Bbox subwoofer enclosures are engineered and constructed to be the strongest on the market. Atrend's outside panels feature signature Miter and Dado construction, which adds extra reinforcement and structural integrity to subwoofer enclosures. Ultimately, these construction techniques provide unsurpassed build and sound quality in Bbox enclosures.


Product Details:

  • 15" Single Medium Sealed Subwoofer Enclosure
  • Durable 3/4" Medium Density Fiberboard (MDF) construction
  • Mitered edge construction provides cleaner finish
  • Miter joints feature over 41% more surface area
  • More surface area translates into a stronger bond
  • Dado joints offer 80% increase in surface area
  • Built using trick glue for up to 3600 PSI holding ability
  • Premium charcoal carpet and silver spring-loaded terminal cups
  • Maximum subwoofer mounting depth: 15.4"
  • Subwoofer cutout diameter: 14"
  • Total box volume: 2.00 cubic feet
  • Dimensions: 18" L x 15.75" H x 16.50" W
  • Authorized Internet Dealer
  • 1-year Manufacturer's Warranty

Best selling similar products

MDFS10 small

Single 10" Sealed MDF Subwoofer Enclosure (Belva MDFS10)

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

(121)

$59.99

List price $99.99

MDFD12 small

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

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

(120)

$99.99

List price $119.99

MDFS12 small

Single 12" Sealed MDF Subwoofer Enclosure (Belva MDFS12)

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

(172)

$69.99

List price $69.99

10SQL small

Atrend 10SQL

• 10" Single Sealed Subwoofer Enclosure
• 3/4" Medium Density Fiberboard (MDF) construction
• Total box volume: 0.69 cubic feet
• Completely miter and dado end panels
• Premium carpeted finish
• Made in the USA

(16)

$59.99

List price $89.99

NE81S small

NVX NE81S

• 8" Single Sealed Subwoofer Enclosure
• 3/4" Medium Density Fiberboard (MDF) construction
• Internal box volume: .45 cubic feet
• Premium Black Carpet with Black NVX Logo

(1)

$59.99

List price $65.99

NE151S small

NVX NE151S

• 15" Single Sealed Subwoofer Enclosure
• 3/4" Medium Density Fiberboard (MDF) construction
• Internal box volume: 2.10 cubic feet
• Premium Black Carpet with Black NVX Logo

$89.99

List price $107.99

NE121S small

NVX NE121S

• 12" Single Sealed Subwoofer Enclosure
• 3/4" Medium Density Fiberboard (MDF) construction
• Internal box volume: 1.00 cubic feet
• Premium Black Carpet with Black NVX Logo

$89.99

List price $99.99

1TRUCK12 small

Single 12" Subwoofer Angled Truck or Hatchback Box Enclosure

• 5/8" MDF (Medium Density Fiberboard)
• Perfect for Tight Spaces (trucks/hatchbacks)
• Fits Most 12" Subwoofers
• 0.75 CuFt
• fully carpeted
• Fully Caulked and Sealed Tight

(27)

$54.99

List price $95.99

10TK small

Atrend 10TK

• 10" Single Truck Sealed Subwoofer Enclosure
• 3/4" Medium Density Fiberboard (MDF) construction
• Universal truck (wedge) enclosure design
• Miter and Dado construction
• Premium carpet finish
• Silver spring loaded terminal cups
• Glued and braced with fasteners
• Total box volume: 0.62 cubic feet

(4)

$73.99

List price $99.99

NE122S small

NVX NE122S

• 12" Dual Sealed Subwoofer Enclosure
• 3/4" Medium Density Fiberboard (MDF) construction
• Internal box volume: 2.00 cubic feet
• Premium Black Carpet with Black NVX Logo

(2)

$129.99

List price $155.99

Specifications & Details


Box/Enclosure specifications
Subwoofer Size
15"
Subwoofer Cutout Shape
Round / Circle
Box Type
Sealed
Number of Subwoofers
1
Box Style/Shape
Square/Rectangle
Cutout Diameter or Length
14"
Maximum Speaker Depth
15.4"
Total Box Volume
2.00 cubic feet
Box Volume (Each Chamber)
2.00 cubic feet
Wood Thickness
3/4"
Number of Terminals
1
Terminal Type
Spring posts (banana clip ready)
Box Exterior Color
Black
Box Finish
Carpet
Warranty and Return Policy
Parts Warranty Duration
1 year
Labor Warranty Duration
1 year
Warranty Provider
Manufacturer

Item Details


Manufacturer:

Model Number:

15SQ

Weight:

30.00lbs

Internal SKU:

15sq

Internal Product ID:

31314

Customer Ratings & Reviews


Atrend 15SQ thumbnail image

5 star
75%
4 star
13%
3 star
0%
2 star
13%
1 star
0%



Durability
4.2
Value
4.6
Features
4
Design
4.9
Usability
5

Customer Photos & Videos


Customer Reviews

Sort by:

Loading...

Should cost less

Well I just got mine today and man I had to ready the sealent all around the box they didn't even bother too look inside to make sure all sides we secured Belva even makes better boxes I had bought n LSV box but it didn't fit so I bought this:/hopefully my massive hippo doesn't break it apart

By eduardo on July 23, 2015 Checkmark Icon Verified purchase

46 found this helpful


Sub box

Box came in a standard size box already put together. Nice quality no complaints. It's as described.

By Jarrod on February 4, 2016 Checkmark Icon Verified purchase

41 found this helpful


Rock solid

I bought this box for my home theater and put a nos Pioneer Ts-w384 dvc in it. I'm running 350 watts rms through the sub and it sound amazing. No rattle, buzz or flex from the box. Sturdy, compact and fits perfectly in the corner. It does exactly what I want it to and it blends in nicely. I shopped around and this one was also the closest to me and the best price.

By DaveMan on December 30, 2019 Checkmark Icon Verified purchase

40 found this helpful


Great price

Fast shipping n great seller will buy again from this site

By Lauro on March 3, 2016

38 found this helpful


Not bad for the money

Works as expected not leaking air yet wouldn't mind paying more if it had a double baffle and internal braceing

By Sharks on August 11, 2016

36 found this helpful


By Dale on December 25, 2023 Checkmark Icon Verified purchase

21 found this helpful


Good box very sturdy

I am very happy with this now it is very sturdy and looks good too

By James on September 12, 2024 Checkmark Icon Verified purchase

6 found this helpful


Solid Box For The Price

Solid box, was limited for my application of getting 2 cubic feet. Sonic had it and picked up the very last one.

By Shaun on January 27, 2025 Checkmark Icon Verified purchase

1 found this helpful




NE151S main

NVX NE151S

• 15" Single Sealed Subwoofer Enclosure
• 3/4" Medium Density Fiberboard (MDF) construction
• Internal box volume: 2.10 cubic feet
• Premium Black Carpet with Black NVX Logo

$89.99

List price $107.99


No picture

Pioneer ND-BC1 OPEN BOX

Rear-View Camera for Pioneer Video Units such as AVIC-N3, AVIC-Z1, and AVH-P6800DVD

$170.00

List price $249.99

Related Searches


Save up to 10 different vehicles in your garage
Vehicle
Store
Delete

1985 BMW 528e

1981 BMW 633CSi

2007 BMW 550i

1975 Dodge Monaco

2010 Dodge Challenger

2001 Ford Ranger

2009 Audi A6

1999 Chrysler Concorde

2001 Mazda Tribute

2008 Subaru Legacy

Add vehicle Clear all vehicles
Where to find vehicle info
Are you sure you want to clear your garage?
This action cannot be undone. Confirm
This page was not designed for products.
If you continue, you will be redirected to a category customized for your vehicle. Continue
Loading...
Identify your vehicle and submodel details
  • Owner's manual
  • Vehicle's insurance card
  • Vehicle registration
  • Vehicle produced after 2005: Inside driver's side door
  • Vehicle produced before 2005: Rear passenger doorjamb, glove box, center console, or engine compartment
Car Info Side Door Icon
Vehicle Registration Icon
Vehicle Insurance Icon

Modern vehicles often require specific brackets, wiring harnesses, and mounting solutions. A fit guide ensures:

  • You see only parts engineered for your exact vehicle
  • You avoid incompatible radios, speakers, or wiring
  • Installation is smoother, faster, and frustration-free
  • You get the correct accessories the first time

Whether you're replacing a factory stereo or upgrading your entire audio system, the Fit Finder eliminates uncertainty.