Garage
Shop

See all parts that fit your 2020 Q3

Hifonics HFX12D4 Bass Package!

800W Max (400W RMS) 12" HF Series Dual 4 ohm Subwoofer with Enclosure + Autotek Amp + Amp Kit | Everything You Need to Get Loud!

Hifonics
Shop all Hifonics
highlight-star-icon

• 800W Peak
• 400W RMS
• Injected Poly Light Rigid Cone
• 1" NBR Reinforced Rubber Surround
• One Piece Poly Cotton Spider
• Spade Style Speaker Terminals
• Chrome Stamped Steel Basket

Learn more about the doorbustercombo1

We apologize

This item has been discontinued

NVX - Worth the Envy - Direct to Consumer Car Audio

Loading...
Limited time!
46CSC654 main

Kicker CSC65 (46CSC654)

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

254
-33.36%

$79.96

List price $119.99

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

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

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

214
-9.16%

$109.00

List price $119.99

43DSC6504 main

Kicker DSC650 (43DSC6504)

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

72
-10.53%

$84.99

List price $94.99

XED62 main

Cerwin-Vega XED62

600W Peak (70W RMS) 6.5" XED Series 2-Way Coaxial 4-ohm Speakers

15
-16.67%

$49.99

List price $59.99

NSP65 main

NVX NSP65

540W Peak (180W RMS) 6.5" N-Series 2 Way Coaxial Car Speakers

93
-35.19%

$69.99

List price $107.99

PNW-65CS2 main

AudioControl PNW-65CS2

250W Peak (200W RMS) 6.5″ PNW Series 2 Way Component 3-ohm Speakers

4
-5.90%

$319.00

List price $339.00

GX608C main

JBL GX608C (GX608CAM)

420W Peak (140W RMS) 6.5” GX Series 2 Way 2.3-ohm Component Speaker System

7
MPK 163.3 main

Hertz MPK163.3

600W Peak (300W RMS) 6.5" Mille PRO Series 3-way 4-ohm Component Speaker System

2
-14.89%

$999.99

List price $1175.00

Description


Hifonics brand icon

Authorized dealer

Hifonics 12" HF Series Car Subwoofer

Sonic Electronix is now carrying the Hifonics HF Series Car Audio Subwoofers. The HF Series 12" Subwoofer has a peak power rating of 800 watts and a RMS rating of 400 watts. This sub will produce some ground shaking bass and is constructed with a injected poly light rigid cone and a 1" NBR reinforced rubber surround for enhanced excursion. This woofer is also equipped with a dual 4 ohm voice coil and a large air cooled magnet assembly. Add some bumps in your trunk and enhance your cars stereo system with this Hifonics HF Series Subwoofer.




Product Features

  • 12" HF Series Car Subwoofer
  • Power Handling:
    • Peak: 800 watts
    • RMS: 400 watts
  • Recommended Power Range: 200 - 400 Watts RMS
  • Impedance: Dual 4 ohm
  • Injected poly light rigid cone for excellent durability
  • 1" NBR reinforced rubber surround provides large amounts of excursion
  • Integrated one piece poly cotton spider
  • Spade style speaker terminals
  • Poly light dust cap
  • Heat dispersing ported back plate
  • Ultra ridged chrome stamped steel basket
  • High strength ABS motor cover
  • Operates In sealed & ported enclosures
  • DVC 4 ohm high-temp KSV voice coils
  • Large air cooled magnet assembly
  • Sensitivity: 87.25 dB
  • Xmax: 6.5 mm
  • Mounting Depth: 5-5/8"
  • Mounting Diameter: 10-15/16"
  • Authorized Internet Dealer
  • 1-year Manufacturer's Warranty

Best selling similar products

MBQBRO-STG6-OEM-1 small

MB Quart MBQBRO-STG6-OEM-1

• Six Speaker Audio Upgrade System
• Includes 6.5" component front speakers, 6.5" coaxial rear speakers, pair of 2-channel amplifier
• Direct fit for a hassle-free installation, fitting perfectly into the select 2021-2024 Bronco
• Designed for OEM Base model audio systems or aftermarket source units
• System is designed to withstand harsh outdoor environments
• Plug and Play design for easy installation
• Comes with all necessary mounting and installation hardware

$1444.99

List price $1899.99

MBQBRO-STG6A-1 small

MB Quart MBQBRO-STG6A-1

• Six Speaker Audio Upgrade System
• Includes 6.5" component front speakers, 6.5" coaxial rear speakers, pair of 2-channel amplifier
• Includes PAC module for OEM B&O audio systems
• Direct fit for a hassle-free installation, fitting perfectly into the select 2021-2024 Bronco
• Designed for OEM B&O audio systems
• System is designed to withstand harsh outdoor environments
• Plug and Play design for easy installation
• Comes with all necessary mounting and installation hardware

$1869.99

List price $2399.99

R2-1200X1, XKIT42 small

Rockford Fosgate R2-1200X1 with Amplifier Wiring Kit

• 400 Watts RMS x 1 @ 4 ohm
• 800 Watts RMS x 1 @ 2 ohm
• 1200 Watts RMS x 1 @ 1 ohm
• CEA-2006 Compliant
• R.L.C. Remote Level Control
• Includes Amplifier Wiring Kit

(149)

$530.20

List price $593.98

NPKG212_65_69_STG1VKIT small

NVX Audio Upgrade Kit – NPKG212 Bass Package with 6x9" & 6.5" Speakers

• 12" Loaded Dual Subwoofer Enclosure with Amplifier
• 500 watts RMS
• Class D Amplifier
• Variable Bass Boost
• Speaker-Level Inputs
• Wired Remote Bass Level Control
• Includes 6.5 and 6x9 Coaxial Speakers and Damping Kits

(267)

$495.93

List price $688.43

NPKG212_65_X2_STG1VKIT small

NVX Audio Upgrade Kit – NPKG212 Bass Package with 2 Pair 6.5" Speakers

• 12" Loaded Dual Subwoofer Enclosure with Amplifier
• 500 watts RMS
• Class D Amplifier
• Variable Bass Boost
• Speaker-Level Inputs
• Wired Remote Bass Level Control
• Includes 6.5 Co-axial Speaker and Damping Kits

(261)

$486.93

List price $677.43

VCW84_NDA12001_XKIT42 small

NVX VCW84v3 + NDA12001 + XKIT42

• Two 8" VCW84v3 VC-Series v3 1300W RMS Subwoofers
• 2400W Peak (1200W RMS) Class D NDA12001 Monoblock Amplifier
• XKIT42 Complete 4 AWG Amplifier Wiring Kit
• 1-year Warranty from the Original Purchase Date

(153)

$619.96

List price $791.96

51HS10_BAK82_2NK small

Kicker HS10 (51HS10) w/ Free Amp Install Kit

  • Kicker HS10 180W RMS Single Loaded 10-Inch Hideaway Series Powered Subwoofer Enclosure
  • Convenient wired remote for independent bass level control
  • 8 Gauge Premium CCA complete 2-channel amplifier wiring kit with RCA
  • Premium polyurethane foam can insulator sleeve koozie with black logo
  • Complete bass solution includes compact powered subwoofer and installation hardware

(99)

$319.99

List price $489.96

QB10SPA_65_X2_STG1VKIT small

NVX Audio Upgrade Kit – QB10SPA with 2 Pair 6.5" Speakers

• 10" Amplified Loaded Subwoofer System
• 350 watts RMS
• Built-In Class D Amplifier
• Variable Bass Boost
• Speaker-Level Inputs
• Wired Remote Bass Level Control
• Includes 6.5(2) Co-axial Speaker and Damping Kits

(250)

$311.43

List price $533.42

BAK42BK,R500X1D small

Rockford Fosgate R500X1D Amplifier + Free Belva BAK42BK 4 Gauge Amp Kit

• R500X1D 500W RMS Prime Series Class D Monoblock Amplifier
• BAK42 Complete 4 Gauge Amplifier Wiring Kit with 2-Channel RCA Interconnects (CCA Wiring)

(80)

$309.99

List price $369.98

BAK42,R500X1D small

Rockford Fosgate R500X1D 500W RMS + 4 Gauge Amp Kit

• RMS: 300W x 1 @ 4 ohm, 500W x 1 @ 2 ohm
• Total RMS Power: 500W
• CEA-2006 Compliant
• Remote PLC (Punch Level Control) Included
• Efficient Class-D circuit topology
• 4 Gauge Power Amplifier Installation Kit
• Ideal for Systems Up to 650 Watts
• Premium Power and Ground Wire Provides Optimal Power Transfer
• 2-Channel Twisted RCA Cables

(73)

$309.99

List price $369.98

Specifications & Details


Series
Series
HF Series
Subwoofer Specifications
Subwoofer Size
12"
RMS Power Handling
400 watts
Peak Power Handling
800 watts
Woofer Surround
Rubber
Woofer Composition
Injected poly light rigid
Voice Coil(s)
Dual
Impedance (Per Voice Coil)
4 ohm
Sensitivity
87.25 dB
Frequency Response
Not specified by manufacturer
Subwoofer Design
Round / Circle
Warranty and Return Policy
Parts Warranty Duration
1 year
Labor Warranty Duration
1 year
Warranty Provider
Manufacturer

Item Details


Manufacturer:

Model Number:

HFX12D4, TA12502, MDFS12, TC4KIT8B

Weight:

36.40lbs

Internal SKU:

doorbustercombo1

Internal Product ID:

153245

Customer Ratings & Reviews


Hifonics HFX12D4 Bass Package! thumbnail image

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



Durability
0
Value
0
Features
0
Design
0
Usability
0

Customer Reviews

Sort by:

Loading...
Sorry, no reviews found


XR1000-1 small

Kenwood eXcelon XR1000-1

2000W Max (1000W RMS) Reference Fit Series 2-ohm Stable Monoblock Class-D Amplifier

$499.99

List price $500.00

PMX801 small

Pyle PMX801

200W, 8-Channel Powered PA Mixer and Amplifier with 5-Band Graphic EQ

(2)

$139.95

List price $299.99

KAC-M3004 small

Kenwood KAC-M3004

600W Class-D 4-Channel Compact Digital Car/ATV/Marine Certified Amplifier

(3)

$220.00

List price $250.00

GT-2300_P3D412_BS212S small

2000W Complete Boston Acoustics + Rockford Fosgate Bass Package

Boston Acoustics GT-2300 Amplifier + 2 Rockford Fosgate P3 12" Subs + 0 Gauge Amp Kit + Dual 12" Box

(145)

$709.99

List price $1289.85

BRZ1200.1D_2-TR7510-22 small

1600W Complete Hifonics + MTX Audio Bass Package

Hifonics BRZ1200.1D Amplifier + 2 MTX Audio TR7510-22 10" Subs + 1/0 GA Amp Kit + 10" Sealed Sub Box

(190)

$466.65

List price $1409.87

BAK82BL,AC2600.2 small

PLANET AUDIO AC2600.2 2600W 2-Channel Amplifier + Premium Amp Kit

2600W Anarchy 2-Channel MOSFET Power Amplifier with Remote Level Control Package

(63)

$184.98

List price $299.98

PPS4-6 PAIR small

Rockford Fosgate Punch Pro PPS4-6 (Pair)

200W Peak 6-1/2" Punch Pro Series 4-Ohm High SPL Midrange Speakers

$159.98

List price $299.98

SHR73M small

SoundStorm SHR73M (Includes 3 Switchable Covers: Black, Tan, Grey)

Universal Headrest 7" Widescreen TFT Monitor w/ built in DVD Player, Remote and Includes 3 Switchable Covers (Black, Tan, Grey)

(1)

$106.99

List price $149.99

FXB 125VA small

Cadence FXB 125VA (FXB125VA)

700W Flash Series Single 12" Active Ported Subwoofer Enclosure w/ Built-In Amplifier

$179.99

List price $265.98

Related Searches


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

2020 Audi Q3

2002 Lexus IS300

1997 Audi A8

2019 Ford Expedition Max

2017 Cadillac CTS

2002 GMC Envoy

2001 Pontiac Aztek

2013 BMW X3

1999 Honda EV Plus

2002 Honda Civic

Vehicle
Store
Delete

2023 Harley Davidson FLHT Electra Glide Standard

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.