Garage
Shop

See all parts that fit your 2013 Mustang

Hifonics BXS8D4

400W Peak (200W RMS) 8" Brutus Series Dual 4-ohm Car Subwoofer

Hifonics
Shop all Hifonics
highlight-star-icon

• Peak Power: 400 watts
• RMS Power: 200 watts
• Impedance: Dual 4 ohm
• Polypropylene cone
• Polyether Foam surround
• Sensitivity: 94 dB

Learn more about the bxs8d4

We apologize

This item has been discontinued


Loading...
72-5600 main

Metra 72-5600

Install New Speakers in select 1993-2017 vehicles from Ford, Mazda, Mercury

107
-33.36%

$9.99

List price $14.99

99-5839CH main

Metra 99-5839CH Dash Kit

Single DIN or Double DIN Stereo Dash Kit and Harness for select 2010-2014 Mustang

5
-45.03%

$375.99

List price $683.99

Limited time!
46CSC654 main

Kicker CSC65 (46CSC654)

600W Peak (200W RMS) 6.5” CS Series 2 Way Coaxial 4-ohm Speakers

122
-33.36%

$79.96

List price $119.99

SA68 main

Scosche SA68

Add 5-1/4" or 6-1/2" Speakers to Factory 6" x 8" Mounting Locations for select 1950-2025 vehicles from Ford, Mercury, Mazda

39
-46.70%

$7.99

List price $14.99

C1-570x main

JL Audio C1-570x

100W RMS 5x7" / 6x8" C1 Series 2 Way Coaxial 4-ohm Car Speakers

4
Limited time!
XAV-AX3200 main

Sony XAV-AX3200

6.95" Double DIN Touchscreen Digital Multimedia Receiver with Bluetooth, WebLink, Apple CarPlay, and Android Auto (SiriusXM Ready)

14
-25.50%

$298.00

List price $399.99

P1683 main

Rockford Fosgate Punch P1 P1683

260W Peak (130W RMS) 6x8" Punch Series 3 Way Coaxial 4-ohm Speakers

85
NSP68 main

NVX NSP68

540W Peak (180W RMS) 6x8" N-Series 2 Way Coaxial Car Speakers

59
-16.67%

$79.99

List price $95.99

VSP68 main

NVX VSP68

600W Peak (200W RMS) 6x8" V-Series 2 Way Coaxial Car Speakers

46
-16.67%

$89.99

List price $107.99

Limited time!
46CSC684 main

Kicker CSC68 (46CSC684)

450W Peak (150W RMS) 6x8” CS Series 2 Way Coaxial 4-ohm Speakers

11
-33.36%

$79.96

List price $119.99

Description


Hifonics brand icon

Authorized dealer

Product Details:

  • 8" Dual 4 ohm Brutus Series Subwoofer
  • Power Handling:
    • Peak: 400 watts
    • RMS: 200 watts
  • Polypropylene cone
  • Polyether Foam surround
  • Heavy-gauge stamped steel basket
  • Stainless steel push and insert terminals
  • Front and rear venting system
  • Heat and UV-resistant components
  • Shallow mount design for flexible installation options
  • Round reinforced dust cap
  • Polyester and cotton-blended spider
  • 2" high-temperature voice coil on vented aluminum former
  • 8.2 mm Xmax
  • Resonance Frequency (Fs): 41.5 Hz
  • Sensitivity: 94 dB
  • Recommended sealed box volume: 0.8 cubic feet
  • Top-mount depth: 2.8"
  • Authorized Internet Dealer
  • 1-year Manufacturer's Warranty

  • Priced Individually

PDF IconHifonics BXS8D4 owner’s manual

Subwoofer Wiring Guide


Wiring Guide to Wire 1 Hifonics BXS8D4 Subwoofer

Mono Amp

2 Channel Amp - Bridged

Wiring Guide to Wire 2 Hifonics BXS8D4 Subwoofers

Mono Amp

Mono Amp - Option 1

2 Channel Amp

2 Channel Amp - Bridged

4 Channel Amp - Bridged

Wiring Guide to Wire 3 Hifonics BXS8D4 Subwoofers

Mono Amp

4 Channel Amp

Wiring Guide to Wire 4 Hifonics BXS8D4 Subwoofers

Mono Amp

2 Channel Amp

2 Channel Amp - Bridged

4 Channel Amp


Loading...
FMUST05BK12-TN main

MTX Audio Thunderform FMUST05BK12-TN (Black, Loaded)

select 2005-2014 Mustang 12" 4 ohms Loaded Vehicle Specific Thunderform Subwoofer Enclosure

FMUST05BK12A-TN main

MTX Audio Thunderform FMUST05BK12A-TN (Amplified)

Amplified 12" 4 ohms Loaded Vehicle Specific Thunderform Subwoofer Enclosure select 2005-2014 Mustang

REF507CF_2_MET-825601_2 main

2 Infinity REF507CF (INFSPKRF507CFUS) w/ Adapter Plates

390W Peak (130W RMS) 5.25" Reference Series 2-way 3-ohm Component Speaker System with Speaker Adapter Plates

3
-12.14%

$477.88

List price $543.88

Limited time!
46CSC654 main

Kicker CSC65 (46CSC654)

600W Peak (200W RMS) 6.5” CS Series 2 Way Coaxial 4-ohm Speakers

122
-33.36%

$79.96

List price $119.99

DMH-1800NEX main

Pioneer DMH-1800NEX

6.8" Double DIN Touchscreen Digital Multimedia Receiver with Bluetooth, Apple CarPlay, Android Auto, and SiriusXM Ready

2
-16.67%

$349.99

List price $420.00

DMH-W4660NEX main

Pioneer DMH-W4660NEX

6.8" Double DIN Digital Multimedia Receiver with Bluetooth, Wireless Apple CarPlay, and Android Auto (SiriusXM Ready)

2
-20.00%

$599.99

List price $750.00

Limited time!
Club 622 main

JBL Club 622

360W Peak (120W RMS) 6.5" Club Series 2-way Coaxial 3-ohm Speakers

5
-28.58%

$99.95

List price $139.95

43DSC6504 main

Kicker DSC650 (43DSC6504)

480W Peak (120W RMS) 6.5” DS Series 2-way 4-ohm Coaxial Car Speakers (DSC6504)

28
-10.53%

$84.99

List price $94.99

CV15BT main

Cerwin-Vega CV15BT

Single Din Digital Media Receiver with Bluetooth

3
DB652 main

Polk Audio DB652 (DB 652)

600W Peak (200W RMS) 6.5" DB+ Series 2 Way Coaxial 4-ohm Car, Marine and Powersports Speakers

12
-9.16%

$109.00

List price $119.99


Best selling similar products

VCW82v3 small

NVX VCW82 Version 3 (VCW82v3)

• Peak Power: 1300 watts
• RMS Power: 650 watts
• Impedance: Dual 2 ohm
• Carbon Fiber Enhanced Non-Pressed Paper Cone
• High Roll Foam Surround with black nylon stitching
• Mount depth: 5.31"
• Sensitivity: 83 dB (1W/1m)

(12)

$169.99

List price $203.99

VCW84v3 small

NVX VCW84 Version 3 (VCW84v3)

• Peak Power: 1300 watts
• RMS Power: 650 watts
• Impedance: Dual 4 ohm
• Carbon Fiber Enhanced Non-Pressed Paper Cone
• Custom High Roll Foam Surround with black nylon stitching
• Mount depth: 5.31"
• Sensitivity: 83 dB (1W/1m)

(15)

$169.99

List price $203.99

8W3V3-4 small

JL Audio 8W3V3-4

• RMS Power: 250 watts
• Impedance: Single 4 ohm
• Mineral-Filled Polypropylene Cone
• Nitrile Butadiene Rubber NBR Surround
• Mount depth: 4.63"
• Sensitivity: 83.24 dB

(45)

$349.99

List price $349.99

L7S82 small

Kicker L7S82 (44L7S82)

• Peak Power: 900 watts
• RMS Power: 450 watts
• Impedance: Dual 2 ohm
• Injection Molded Polypropylene Cone
• Ribbed Santoprene Surround
• Mount depth: 4-3/4"
• Sensitivity: 82.37 dB

(1)

$175.96

List price $239.99

SW-EV68D2 small

Sundown Audio E8 v.6 D2 8" (E8V6D2)

• Peak Power: 800 watts
• RMS Power: 400 watts
• Impedance: Dual 2 ohm
• Pressed Paper Cone
• Pressed Foam Surround
• Mount depth: 4.98"
• Sensitivity: 82.4 dB

$169.99

List price $203.99

SPK-8S4 small

AudioControl SPK-8S4

• RMS Power: 500 watts
• Impedance: Single 4 ohm
• Paper Fiber with Mica Coating Cone
• Rubber Surround
• Mount depth: 4.291"
• Sensitivity: 81.9876 dB

(1)

$179.00

List price $229.00

8W1v3-4 small

JL Audio 8W1v3-4


• RMS Power: 150 watts
• Impedance: Single 4 ohm
• Mica Injected Polypropylene - MIPP Cone
• Nitrile Butadiene Rubber NBR Surround
• Mount depth: 3.86"
• Sensitivity: 84.8 dB

(10)

$199.99

List price $199.99

49L7X81 small

Kicker L7X81 (49L7X81)

• RMS Power: 400 - 800 watts
• Impedance: Dual 1 ohm
• Double-pressed pulp Cone
• UV-resistant Santoprene Surround
• Mount depth: 7-15/16"

(1)

$449.99

List price $479.99

KAPPA 83WDSSI small

Infinity Kappa 83WDSSI (INFSUBKA83WDSSIAM)

• Peak Power: 1200 watts
• RMS Power: 400 watts
• Impedance: Single 2 or 4 ohm
• Glass Fiber Cone
• Rubber Surround
• Mount depth: 5.42"
• Sensitivity: 91 dB

(2)

$149.95

List price $289.95

CWRT84 small

Kicker CWRT84 (48CWRT84)

• Peak Power: 600 watts
• RMS Power: 300 watts
• Impedance: Dual 4 ohm
• UV-Treated Polypropylene Cone
• UV-resistant Santoprene Surround
• Mount depth: 2-11/16"
• Sensitivity: 81.8 dB

(4)

$151.96

List price $209.99

Specifications & Details


Subwoofer Specifications
Series
Brutus Series
Subwoofer Size
8"
Peak Power Handling
400 watts
RMS Power Handling
200 watts
Voice Coil(s)
Dual
Impedance (Per Voice Coil)
4 ohm
Voice Coil Diameter
2"
Sensitivity
94 dB
Xmax (millimeters)
8.2 mm
Subwoofer Design
Round / Circle
Main Cone Color
Black
Woofer Composition
Polypropylene
Woofer Surround
Polyether Foam
Subwoofer Grille
No
Recommended Enclosure Specifications
Recommended Enclosure Type
Sealed
Optimum Sealed Box Volume
0.8 cubic feet
Top-Mount Depth (Mounting Depth)
2.8"
Shallow Mount Installation
Yes
T/S Parameters (Electromechanical)
Free-Air Resonance (Fs)
41.5 Hz
Equivalent Compliance (Vas)
12.19 liters
Total Speaker Q Value (Qts)
.83
Electrical Q Value (Qes)
1.01
Mechanical Q Value (Qms)
4.66
What is in the box?
Paperwork
User manual
WITB: Subwoofers
Subwoofer
Illuminated grille (attached)
Mounting screws (4)
Warranty and Return Policy
Parts Warranty Duration
1 year
Labor Warranty Duration
1 year
Warranty Provider
Manufacturer

Item Details


Manufacturer:

Model Number:

BXS8D4

Weight:

5.00lbs

Internal SKU:

bxs8d4

Internal Product ID:

145599

Customer Ratings & Reviews


Hifonics BXS8D4 thumbnail image

5 star
100%
4 star
0%
3 star
0%
2 star
0%
1 star
0%



Durability
4
Value
5
Features
4
Design
4
Usability
5

Customer Reviews

Sort by:

Loading...

Replacement subwoofer

I picked this little sub from running other Hifonics subs and with no surprise after installing it in my 2010 Ram this thing really helped this Alpine system out a lot. For tight places and small enclosures I would highly recommend this little sub and the price is very good for the sound quality from it also. I would easily give it a 4.5 stars out of 5 rating.I’m very impressed and happy with it, now next I’m going to look into replacing the door speakers.

By Eric on December 4, 2021 Checkmark Icon Verified purchase

34 found this helpful


Replacement subwoofer

I picked this little sub from running other Hifonics subs and with no surprise after installing it in my 2010 Ram this thing really helped this Alpine system out a lot. For tight places and small enclosures I would highly recommend this little sub and the price is very good for the sound quality from it also. I would easily give it a 4.5 stars out of 5 rating.I’m very impressed and happy with it, now next I’m going to look into replacing the door speakers.

By Eric on December 6, 2021

30 found this helpful



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

2013 Ford Mustang

2022 Audi Q4 e-tron

2016 Buick LaCrosse

2014 MINI Cooper

1995 Mitsubishi Eclipse

1996 Dodge Dakota

2010 Dodge Ram 2500

2003 BMW Z4

2017 Audi S6

2005 Subaru Impreza

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.