Garage
Shop

See all parts that fit your 2009 X6

(2) Alpine W10S4 10" Bass Subwoofers + Belva 3000W Amplifier + 4 Gauge Amp Kit

750W Max 10" Single 4 ohm Car Subwoofer Package (Includes 2 Subs, Amp, and Amp Kit)

Alpine
Shop all Alpine
highlight-star-icon

• 750W Max
• 250W RMS
• Polypropylene-Mica cone
• High-excursion poly-foam surround
• High-strength custom steel frame
• Progressive Wavelit Ribs (P.W.R.) cone design

Learn more about the w10s4_2_bxd3k_bak42
Universal fit Icon

Universal – fits most vehicles.

Similar items | Update vehicle | Vehicle store
List price $489.98
Thanks , You Pay:
-26%

$364.88

 with warranty
Starting at $33/mo or 4 payments of $92 Buy now, pay later and installment payment plans are offered by Afterpay and Affirm. Learn more

Heads up

Your vehicle can use this product in multiple locations. Only a quantity of one can be selected from the product page. You will have the option to adjust the quantity within your cart.

Save 15% Off Package Deals at Checkout!
shipping truck icon Free shipping in USA. Provide zip for delivery date.
Quantity
In Stock
Brand new

Buy it now


Acima Logo

No Credit Option

Flexible Lease Payments

Early Purchase Options

Quick Approval Decision

Extend logo

Keep your product protected longer! Extend the warranty after the manufacturer warranty expires. 

  • Hassle-free immediate replacement within minutes!
  • Easy online claims 24/7
  • Covers product breakdowns and failures
Swoosh Icon Icon of Swoosh

For over 25 years, we've been your X-Factor – the team dedicated to having the biggest impact on your shopping experience!

Award winning icon
Award-Winning Service
Shipping icon
FREE Shipping Orders $49+
60 days return policy icon
60-Day Easy Returns
lowest price guarantee icon
Guaranteed Lowest Price
inHouseExpert
In-House Experts

Loading...
VSP4 main

NVX VSP4

450W Peak (150W RMS) 4" V-Series 2 Way Coaxial Car Speakers

17
-16.67%

$59.99

List price $71.99

XED1T main

Cerwin-Vega XED1T

1000W Peak (90W RMS) 1” XED Series 4-ohm Piezo Dome Tweeters

19
-16.67%

$29.99

List price $35.99

Description


Alpine brand icon

Authorized dealer

Legendary Alpine quality at an affordable price

Car audio enthusiasts know that Alpine is the leader in technology and innovation. Their reputation for developing the most reliable products is legendary. The BassLine product line is a their quest to give customers a quality product that won't break the bank.

Surround and wattage match made in heaven

The 250 watts of continuous power that the W10S4 handles complements the poly-foam surround that Alpine went with. It provides the best sound quality money can buy at this price point.

Alpine W10S4

750W Peak (250W RMS) 10" Bass Series Single 4-ohm Car Subwoofer
Quantity: 2

Product Details:

  • 10" Single 4 ohm Bass Series Subwoofer
  • Power Handling:
    • Peak: 750 watts
    • RMS: 250 watts
  • Mica Injected Polypropylene - MIPP Cone
  • Poly-Foam Surround
  • 2" High Temperature Voice coil
  • 10 mm Xmax
  • 52 oz. Single Stacked magnet motor structure
  • Frequency Response: 24 - 200 Hz
  • Resonance Frequency (Fs): 32 Hz
  • Sensitivity: 86.6 dB
  • Recommended sealed box volume: 0.65 cubic feet - 1.0 cubic feet
  • Recommended ported box volume: 1.0 cubic feet - 1.75 cubic feet
  • Top-mount depth: 5-1/16"
  • Cutout diameter: 9"
  • Subwoofer grille Alpine KTE-10PG optional (sold separately)
  • Authorized Internet Dealer
  • 1-year Manufacturer's Warranty

  • Priced Individually

Belva BXD3K

3000W Peak BX-Series Class-D Monoblock Car Audio Amplifier with Bass Remote
Quantity: 1

Product Details:

  • BX Series Class D 1 ohm Stable Monoblock Amplifier
  • Power Rating:
    • 4 ohm: 750 watts x 1 channel
    • 2 ohm: 1500 watts x 1 channel
    • 1 ohm: 3000 watts x 1 channel
  • Total Peak power output: 3000 watts
  • Pulse Width Modulated MOSFET power supply
  • LED Power/Protect Light
  • Wired remote bass level control included
  • Soft start turn-on
  • 3-way protection circuitry (thermal, overload, and speaker short protection)
  • Input sensitivity:
    • Low level: 200mV - 8 volts
  • Frequency Response: 10 - 250 Hz
  • Total Harmonic Distortion (THD): 0.05%
  • Signal to Noise Ratio: 96 dB
  • Variable low-pass filter: 50 - 250 Hz
  • Variable Bass Boost: 0 - 18 dB
  • Fuse Rating: 120A
  • 4 AWG gauge power and ground wiring is recommended for installation.
  • Dimensions: 7.48" W x 11.02" L x 2.00" H
  • Authorized Internet Dealer
  • 1-year Manufacturer's Warranty

Belva BAK42BK

4 Gauge Premium (CCA) Copper Clad Aluminum Complete 2-Channel Amplifier Wiring Kit with RCA for Amplifiers up to 1200 Watts - GRAY
Quantity: 1

Product Details:

  • 4 Gauge 2-Channel Complete Amplifier Installation Kit
  • Designed for car audio systems up to 1200 watts RMS
  • Made from 100% Copper-Clad Aluminum (CCA)
  • Satin chromed Mini-ANL fuse holder offers ideal protection for high-powered systems
  • Full spec power and speaker wire meet or exceed American Wire Gauge standards
  • RCA Interconnect Cable
  • Twisted-pair construction provides protection against interference
  • Split-tip silver-plated ends offer high-quality performance
  • Molded ends equipped with colored channel identifiers for easy recognition
  • Includes an assortment of wire termination hardware and cable ties
  • Authorized Internet Dealer
  • 1-year Manufacturer's Warranty

Kit includes:

  1. 17 ft. Gray 4 gauge power wire
  2. 3 ft. Black 4 gauge ground wire
  3. 17 ft. Gray 18 gauge remote lead wire
  4. 20 ft. 16 gauge speaker wire
  5. One 17 ft. 2-channel twisted-par construction RCA interconnect Cable
  6. One Mini-ANL Fuse Holder with 80 amp Mini-ANL fuse
  7. One Black rubber firewall grommet
  8. Two 4 Gauge Chrome Plated ring terminals
  9. Five 16 Gauge Spade terminal
  10. One 18 Gauge Red butt connectors
  11. Ten 4" Black zip ties

Loading...
Club 322F main

JBL Club 322F (SPKCB322FAM)

150W Peak (50W RMS) 3.5" Club Series 2 Way Coaxial 3-ohm Speakers

1
-27.29%

$79.95

List price $109.95

CVP8 main

Cerwin-Vega CVP8 (Sold Individually)

350W Peak (170W RMS) 8" CVPRO Series Pro Full Range 4-ohm Speaker

-16.67%

$49.99

List price $59.99

JS35K main

Jensen JS35K

150W Peak (50W RMS) 3.5" Apex Series 2-Way Coaxial 4-ohm Car Speakers

51KSC3504 main

Kicker KSC35 (51KSC3504)

200W Peak (100W RMS) 3.5" KS Series 2 Way Coaxial 4-ohm Speakers

4
-11.11%

$79.99

List price $89.99

Club 34F main

JBL Club 34F (JBLSPKCB34F)

150W Peak (50W RMS) 3.5" Club Series 2 Way Coaxial 3-ohm Speakers

4
-27.29%

$79.95

List price $109.95

TS-A1081F main

Pioneer TS-A1081F

460W Peak (100W RMS) 4” A Series 2-way 4-ohm Coaxial Car Speakers

3
-18.18%

$90.00

List price $110.00

DB402 main

Polk Audio DB402 (DB 402)

270W Peak (90W RMS) 4" DB+ Series 2 Way Coaxial 4-ohm Car, Marine and Powersports Speakers

4
-9.99%

$90.00

List price $99.99

CF-350mt main

JL Audio CF-350mt

70W RMS 3.5" CF Series Custom-Fit Midrange 4-ohm Tweeters

4
P132 main

Rockford Fosgate Punch P1 P132

80W Peak (40W RMS) 3.5” Punch Series 2 Way Coaxial 4-ohm Speakers

43
C1-400x main

JL Audio C1-400x

70W RMS 4" C1 Series 2 Way Coaxial 4-ohm Car Speakers

8

Best selling similar products

NPKG212 small

NVX NPKG212 Dual 12" Bass Package

• 12" Loaded Dual Subwoofer Enclosure with Amplifier
• 500 watts RMS
• Class D Amplifier
• Variable Bass Boost
• Speaker-Level Inputs
• Wired Remote Bass Level Control

(11)

$374.99

List price $419.99

MB210SP small

MTX Audio Magnum MB210SP

• 10" Amplified Loaded Subwoofer System
• 400 watts RMS
• Built-In Class D amplifier
• Variable bass boost
• Speaker-level inputs

(65)

$269.95

List price $299.95

F-150EX-09A small

MTX F-150EX-09A

• 10" Amplified Loaded Subwoofer System
• 250 watts RMS
• Built-In Class D amplifier
• Speaker-level inputs
• External bass control

$719.95

List price $637.95

MBQBRO-302 small

MB Quart MBQBRO-302

• 12" Amplified Loaded Subwoofer System
• 400 watts peak
• Built-In class D amplifier
• Variable bass boost
• Speaker-level (high-level) inputs (Requires adapter like the Kicker KISL)

$679.99

List price $899.99

JBLBassPro 12 small

JBL BassPro 12

• 12" Amplified Loaded Subwoofer System
• 150 watts RMS
• Built-In Class D Amplifier
• Variable Bass Boost
• Speaker-Level Inputs

(1)

$364.95

List price $419.95

RTP8A small

MTX Audio RTP8A

• 8" Amplified Loaded Subwoofer System
• 120 watts RMS (360 watts Peak)
• Built-In amplifier
• Variable bass boost
• Speaker-Level Inputs
• EBC wired remote bass level control

(8)

$199.95

List price $219.95

TNP212D2 small

MTX Audio TNP212D2

• 12" Amplified Loaded Subwoofer System
• 400 watts RMS
MTX TN250/1 amplifier included
• Selectable bass boost
• Speaker-level (high-level) inputs (adapter included)
• Wired remote bass level control

(156)

$369.95

List price $399.95

BPKG212v2 small

Belva BPKG212v2 Dual 12" Bass Package

• Works with both Factory and Aftermarket Audio Systems
• Dual 12" Belva Subwoofers
• Monoblock Amp with Bass Knob
• Ported Enclosure
• Complete Amp Wiring Kit

(82)

$279.99

List price $323.99

QB10SPA small

NVX QB10SPA

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

$179.99

List price $275.98

Specifications & Details


Subwoofer Specifications
Series
BassLine Series
Subwoofer Size
10"
Voice Coil(s)
Single
Impedance (Per Voice Coil)
4 ohm
RMS Power Handling
250 watts
Peak Power Handling
750 watts
Woofer Surround
Poly-Foam
Woofer Composition
Mica Injected Polypropylene - MIPP
Sensitivity
86.6 dB
Frequency Response
24 - 200 Hz
Xmax (millimeters)
10 mm
Top-Mount Depth (Mounting Depth)
5-1/16"
Cutout Diameter
9"
Recommended Enclosure Type
Ported / Vented
Sealed
Warranty and Return Policy
Parts Warranty Duration
1 year
Labor Warranty Duration
1 year
Warranty Provider
Manufacturer

Item Details


Manufacturer:

Model Number:

W10S4_2, BXD3K, BAK42BK

Weight:

33.19lbs

Internal SKU:

w10s4_2_bxd3k_bak42

Internal Product ID:

193011

Customer Ratings & Reviews


(2) Alpine W10S4 10

5 star
85%
4 star
9%
3 star
6%
2 star
0%
1 star
0%



Durability
4.8
Value
4.9
Features
4.7
Design
4.8
Usability
4.7

Customer Photos & Videos


Customer Reviews

Sort by:

Loading...

Quality Product

The following review is for BAK42BK, which is a part of the bundle you are viewing.

Works very well with my Rockford Fosgate sub system in my car.

By Ronald on December 11, 2014

135 found this helpful


good deal!

The following review is for BAK42BK, which is a part of the bundle you are viewing.

Pretty decent value for the price. Worked out great, thanks.

By Brett on January 29, 2015

130 found this helpful


Usable

The following review is for BAK42BK, which is a part of the bundle you are viewing.

The wiring has done me right so far but the only thing I don't like is the speaker wires. You have to carefully split it so the wire doesn't show. Other than that minor thing everything was great and a great value!

By tyler on November 18, 2014

126 found this helpful


price is right

The following review is for BAK42BK, which is a part of the bundle you are viewing.

the price is right for this setup. the ground wire and the power wire are to big for my amp but i made them fit. better to have to much than not enough so if i upgrade to a larger amp it will be fine.

By Mark on November 13, 2014

123 found this helpful


Accessories for product

The following review is for BAK42BK, which is a part of the bundle you are viewing.

Just what I needed and made installation so much easier. Thanks

By Susie on February 9, 2015

113 found this helpful


awesome products

The following review is for BAK42BK, which is a part of the bundle you are viewing.

I run 2 12inch audiobahn exursions on this amp and it pushes them very well. The size is perfect not to big and fits right unerneath the seat or small space. The best part is it stays pretty cool even after running most the day.

By CJ on March 22, 2015

108 found this helpful


good wires

The following review is for BAK42BK, which is a part of the bundle you are viewing.

I like the wire kit I got with my amp it seems to be holding up goo it handles the power of the amp I got but I would of gave it 5 stars all the way around but I wold of like the ground at less 2 more feet for good use but over all its a nice kit

By jay on March 8, 2015

100 found this helpful


Good stuff

The following review is for BAK42BK, which is a part of the bundle you are viewing.

Great product last a long time good value for the money.

By Brandon on December 7, 2014

106 found this helpful


Cable

The following review is for BAK42BK, which is a part of the bundle you are viewing.

Good product fast shipping awsome seller... keep up the good work.....

By Rondell on November 9, 2015

84 found this helpful


Perfect kit

The following review is for BAK42BK, which is a part of the bundle you are viewing.

Comes with everything you need. Works good with my 800w system

By Chad on May 14, 2020 Checkmark Icon Verified purchase

69 found this helpful




GRLA5500/1D small

SPL GRLA 5500/1D (GRLA5500/1D) R/B

5500W Max, Gorilla Series Class D Digital Monoblock Amplifier

$199.99

List price $669.99

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

2009 BMW X6

2014 Lexus GS350

2008 Volvo C70

2003 Toyota Solara

2019 Chevrolet Blazer

2014 Audi A5

2002 Cadillac DeVille

2004 Ford Focus

2013 Chrysler 200

2010 Dodge Challenger

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.