1200W Complete Hifonics + Kenwood Bass Package

Kenwood KAC-7205 Amplifier + 2 Hifonics HFi12D4 Subs + 4 Gauge Amp Kit + Dual 12" Sealed Box

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Bass Package: Kenwood KAC-7205 + 2 Hifonics HFi12D4 + Kit + Box • 1200 Watts Max • Class AB Amplifier • CEA-2006 Compliant • Includes Everything You Need To Add Bass To Your Car

Learn more about the kac7205_2-hfi12d4

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This item has been discontinued

Product Highlights

Bass Package: Kenwood KAC-7205 + 2 Hifonics HFi12D4 + Kit + Box • 1200 Watts Max • Class AB Amplifier • CEA-2006 Compliant • Includes Everything You Need To Add Bass To Your Car



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Solid Bass, Low Price

For those that are looking for big bass on a budget, this is the perfect kit for you! The CEA-2006 complaint Kenwood amplifier produces rated power that is perfect for each of the subwoofers. The 2-channel amp is connected to the two subwoofers on each of the channels. The Hifonics HFi12D4 subwoofers are a great pair of hard hitting subs that do not require a lot of power to sound really good. To make the combo even better, Sonic has included a enclosure lined with poly-fil and a 4 gauge amplifier kit to make all the necessary power connections. With this kit, you will be on your way to more bass in no time at all!

Amplifier Features:
  • 2-Channel Class AB Car Amplifier
  • RMS Power Rating:
    • 4 ohms: 170 watts x 2 chan.
    • 2 ohms: 250 watts x 2 chan.
    • Bridged, 4 ohms: 500 watts x 1 chan.
  • Max power output: 500 watts x 2 chan.
  • MOSFET power supply
  • LED power indicator
  • Tuned Bass EQ (0-18 dB bass boost at 40 Hz)
  • Speaker impedance: 2-8 ohms (4-8 ohms bridged)
  • Bridgeable operation
  • Speaker-level inputs with signal sensing for automatic turn-on
  • Preamp RCA outputs
  • Short circuit, DC offset, overload, and thermal protection circuitry
  • Aluminum die cast heat sink
  • Built-in cooling fan
  • Gold-plated RCA level inputs
  • Gold-plated screw terminals
  • Variable low-pass filter (50-200 Hz, 24 dB/octave)
  • CEA-2006 compliant amplifier
  • Frequency response: 5-50,000 Hz
  • Dimensions: 13-3/4"L x 2-5/16"H x 9-3/8"D
  • 4-gauge power and ground leads recommended
  • 1-year Sonic Electronix warranty
Subwoofer Features:
  • Two 12" Dual 4 Ohm HFi Series Subwoofers
  • Power Handling:
    • Peak: 1200 watts total / 600 watts each
    • RMS: 600 watts total / 300 watts each
  • Impedance: Dual 4 ohm
  • Injected poly light rigid cone
  • 1” NBR Reinforced rubber surround
  • High-excursion rubber surround
  • Integrated one piece poly cotton spider
  • Poly-mica cone damping
  • Nickel plated push and insert speaker terminals
  • Dual 4 ohm high-temp multi-layer high-temp voice coil
  • Front-plate and voice-coil cooling
  • Poly light dust cap
  • Heat dispersing ported back plate
  • Ultra ridged chrome stamped steel basket
  • High strength ABS motor cover
  • High-energy magnet
  • Large air cooled magnet assembly
  • Anti-resonant rubber magnet boot
  • Sensitivity: 88 dB
  • Authorized Internet Dealer
  • 1-year SonicElectronix.com warranty
Enclosure Features:
  • 12" Dual Universal Sealed Enclosure
  • Covered in black carpet for durability
  • Two sets of binding posts
  • Banana clip ready for easy wiring
  • Two sealed chambers gives each subwoofer its own air space
  • Poly-fil lining for enhanced bass
  • 3/4" MDF(Medium Density Fiberboard) construction
  • Subwoofer mounting depth: 12-1/4"
  • Subwoofer cutout diameter: 11-1/4"
  • Box volume: 1.15 cubic feet (per chamber)
  • Total box volume: 2.29 cubic feet
  • Dimensions: 12"TD x 15-3/4"BD x 30"W x 13-1/2"H
  • Authorized Internet Dealer
Amplifier Kit Features:
  • Amplifier Installation Kit with RCA Interconnect Cable
  • 4 Gauge Power and ground cable for excellent power transfer
  • Designed for systems up to 1500W
  • Comes with everything needed to install an amplifier
  • RCA Interconnect cables use twisted pair construction for optimal signal transfer with low noise interference
  • Speaker cable is easy to install with clean and clear sound
  • 1-year Sonic Electronix warranty
Amplifier Kit Includes:
  1. 17 ft. of 4 Gauge blue power cable
  2. 3 ft. 4 Gauge black ground cable
  3. 17 ft. Neon blue series RCA cable
  4. 16 ft. of Speaker wire
  5. 17 ft. of 18 Gauge blue remote turn-on wire
  6. 6 ft. of Split loom tubing
  7. 1 AGU Fuse Holder
  8. 60 AGU Fuse
  9. All Necessary Hardware for Installation

Specifications & Details

Full Range Amplifier Power Specifications
RMS Power @ 4 ohms
170 watts x 2 channel
RMS Power @ 2 ohms
250 watts x 2 channel
RMS Power @ 1 ohm
Not Stable
Bridged RMS Power
500 watts x 1 channel
Peak Power Output
500 watts x 2 channel
Subwoofer Amplifier Power Specifications
RMS Power @ 4 ohms
RMS Power @ 2 ohms
RMS Power @ 1 ohm
Peak Power Output
Amplifier Specifications
Amplifier Class
Number of Channels
Maximum Input Gauge Size
THD at Rated RMS Power
Speaker Level Inputs
Preamp Outputs
1 pair
Built-in Crossover
Low-Pass (LP)
Low-Pass Crossover Frequency
50 - 200 Hz
Signal-to-Noise Ratio
80 dB
Low-Level Input Sensitivity
Bass Boost
0 - 18 dB
Remote bass/level controller
Fuse Rating
30A x 2 
CEA-2031 Compliant
Subwoofer Specifications
Subwoofer Size
RMS Power Handling
300 watts
Total RMS Power Handling
600 watts
Peak Power Handling
600 watts
Total Peak Power Handling
1200 watts
Woofer Surround
Woofer Composition
Injection Molded Polypropylene - IMPP
Magnet Type
88 dB
Subwoofer Design
Enclosure Specifications
Box Type
Number of Subs/Speakers
Box Style/Shape
Hatchback Style, Angled Back
Total Box Volume
Second Depth
Wood Thickness
Number of Terminals
Terminal Type
Binding posts (banana clip ready)
Box Exterior Color
Box Finish
Tuning Frequency
Final Wired Impedance
Amplifier Wiring Kit
Is Amplifier Wiring Kit included?
Warranty and Return Policy
Parts Warranty Duration
1 year
Labor Warranty Duration
1 year
Warranty Provider
Sonic Electronix

Item Details


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Product and How-to Videos

  • Car Subwoofer Size Buying Guide | What Size of Sub Should I Get?
  • How To Install an Amplifier: Car Amplifier Basics Part 2

Customer Ratings & Reviews

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The amp/box/speakers sound and look great. I ordered a Kenwood head unit also so I would have sub control and not lose the Kenwood quality sound between the amp and head unit. The sound is great!!!!! The price is even better, with the head unit included I only spent around 375.00 total. It sounds as good as some sound systems I have installed that cost between 1000.00 and 2000.00 dollars.
DONT BE AFRAID of the Hifonics subs, they are not high end cost, but they are high end performance, they are dual voice coil. If you series/parralel bridge the subs & amp for 4 ohm load using all the coils it will produce great bass. The amp performs as expected for a Kenwood, top notch. The box is built very good and looks great too. Im not too up on buying online since it hurts local business but with prices like this you simply cant pass them by. Oh yeah shipping was good too. Hope this helps you decide on a purchase.

By Rosco on November 14, 2010


found this helpful.

These are quality subs!

These produce great sound and are very loud. I put two 12 inch hfi's in the trunk of my Buick and it shakes the car. Great subs and great amp for a low price. HIGHLY RECOMMEND!

By Wendell on October 2, 2010


found this helpful.

HUGE punch for the money

I have the best subwoofer setup at my high school by a long shot. At a price like this, your crazy not to buy it!

By Mattpt on January 15, 2011


found this helpful.


I bought this package and put it in my 1997 f150 extended cab. its sitting right on top of my back seat. these things shake my back window. I highly recommend getting these subs. They are awesome !!

By Dan on November 9, 2010


found this helpful.

Great Buy!

These subs hit really hard and were totally worth the buy.

By dank on December 6, 2010


found this helpful.


Excellent product with no complaints. Installed everything myself, and it sounds great, good for the money!

By D Bunem on April 21, 2011


found this helpful.

Amazing system for the price

I bought these not knowing what to expect and now my whole car rattles. Great buy.

By Alex on March 20, 2011


found this helpful.


I got these subs for christmas and put them in my 1996 tahoe the really beat hard great for a first system

By CODY on December 30, 2010


found this helpful.

Great Subs

I recommend this for your first subs and amp combo. They are affordable and have great quality.

By Jared on December 26, 2010


found this helpful.


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