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Hifonics HFi100.2 (HFi 100.2)

400W RMS, 2-Channel HFi Series Amplifier

4.4

(16 reviews)

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The product on this page is discontinued.

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Clean Power and Continuously Affordable.

The Hifonics HFi100.2 informs you of its main objective in the name, Hi-Fi audio. High end sound processing is its main focus, however it continues to bring value to the table by providing high power output in an pleasantly small chassis. The illuminating retro Hifonics logo brings an old-school look back into their new series.

This two channel amplifier combines quality signal processing, with bulk power. At 4 Ohms, an impressive 100W RMS outputs to two channels, and at 2 Ohms, a full 200W RMS is output. This means clean, high power for two door speakers. You can also bridge the channels together, to provide 400W RMS at 4 Ohms to one channel.

This incredible power output is combined with the HFi series of amplifiers integrated high-dissipation heat-sink design, and built-in system diagnostics. Affordability does not have to sacrifice value or sound quality – making the HFi100.2 multi-channels the perfect choice.

  • HFi Series 2-Channel Class A/B Car Amplifier
  • RMS Power Rating:
    • 4 ohms: 100 watts x 2 chan.
    • 2 ohms: 200 watts x 2 chan.
    • Bridged, 4 ohms: 400 watts x 1 chan.
  • Pulse Width Modulated (PWM) MOSFET power supply
  • LED power (blue) and protect (red) indicators
  • Variable Bass Boost (0 to +12 dB bass boost at 45 Hz)
  • Blue illuminated Hifonics badge
  • Soft start sound function
  • 2/1 channel operation
  • Preamp RCA outputs to daisy chain multiple amps
  • 4-Way System Protection circuitry (thermal, overload, DC, and speaker short protection)
  • Tri-mode speaker operation
  • Heavy duty aluminum alloy vented heatsink for maximum heat dissipation
  • Silver nickel-plated RCA level inputs
  • Silver nickel-plated screw terminals
  • Input sensitivity:
    • Variable level: 200mV-6V
  • Variable high-pass filter (60-12,000 Hz, 12 dB/octave)
  • Variable low-pass filter (30-250 Hz, 12 dB/octave)
  • Damping factor: >180
  • Frequency response: 30-12,000 Hz
  • Dimensions: 9-15/16"L x 8-13/16"W x 2-7/16"H
  • 4-gauge power and ground wiring is required for installation. Contact us for information regarding a discount on select amplifier kits when purchased together with this amplifier.
  • Authorized Internet Dealer
  • 1-year Manufacturer's warranty
Power Specifications - Full Range Channels
RMS Power @ 4 ohms100 watts x 2 channels
RMS Power @ 2 ohms200 watts x 2 channels
RMS Power @ 1 ohmN/A
Bridged RMS Power400 watts x 1 channel
Peak Power OutputN/A
Amplifier Specifications
Amplifier ClassAB
Number of Channels2
Total Peak Power OutputN/A
Total RMS Power Output400 watts
Maximum Input Gauge Size4 AWG
Minimum Impedance Unbridged2 ohms
Minimum Impedance Bridged4 ohms
THD at Rated RMS Power0.05%
Speaker Level InputsNo
Preamp Outputs1 pair
Built-in CrossoverLow-pass (LP)
High-pass (HP)
Full (AP)
High-Pass Crossover Frequency60 - 12,000 Hz
Low-Pass Crossover Frequency30 - 250 Hz
Subsonic FilterN/A
Signal-to-Noise Ratio90 dB
Channel Separation80 dB
Bass Boost0 - 12 dB
Bass/Gain RemoteNo
Fan CooledNo
Fuse Rating15A x 2 
CEA-2006 CompliantNo
Warranty and Return Policy
Return Policy Standard Return Policy
Parts Warranty Duration1 year
Labor Warranty Duration1 year
Warranty ProviderManufacturer
Customer Review Summary for Hifonics HFi100.2 (HFi 100.2)
Average Customer Rating is 4.4 out of 5 stars:
4.4
based on 16 Reviews
Share your thoughts with others:
Rating Distribution:
5 star:
.
.
63%
4 star:
.
.
25%
3 star:
.
.
6%
2 star:
.
0%
1 star:
.
.
6%
what's this?
Average Attributes Rating:
Durability
4.4
Value
4.6
Features
4.1
Design
4.3
Usability
4.4
what's this?
Quick Comparison:
Most Helpful Customer Reviews:
November 24, 2011 My amp
1 of 1 people found the following review helpful:
Review by
Carl from Fort Stewart, GA
Overall
Durability
Value
Features
Design
Usability
I bought this amp for my wife's car about six months ago and it hasn't let me down yet. It push all the power her 12" sub needs and sets the whole system off. I recommend this amp to anyone.
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October 4, 2011 Great AMP!
1 of 1 people found the following review helpful:
Review by
rockstar143 from Pembroke Pines, FL
Overall
Durability
Value
Features
Design
Usability
Ignore my previous review, it was intended for the subs I recently purchased, not this amp I bought for a customer's car previously.

Amp was amazing, lots of power and perfectly matched up with the sub that came with the combo... hit VERY hard and never overheated. No complaints... been a long time Maxxsonics customer and will continue to be.
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September 27, 2011 Good Bang for the buck But...
1 of 1 people found the following review helpful:
Review by
Kent from Tampa, FL
Overall
Durability
Value
Features
Design
Usability
Got this amp as part of a package deal. The amp itself is great bang for the buck but unfortunately it is not powerful enough for the sub that came with my package. Its like its almost enough but not quite. I would recommend 6 or 4 gauge wire. The 8 gauge wire that came with the package deal I got is just not thick enough. This amp does draw some current but if your electrical system is up to par this amp can really deliver. Keep in mind that bridged it is 400 watt RMS but it is also 400 Watt Peak so if you have a higher peak sub i would say get a different amp. IMO This would be great for a 10" or 12" without high power requirements.
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September 23, 2011 Very Satisfied
1 of 1 people found the following review helpful:
Review by
Uncle Benny from Lady's Island, SC
Overall
Durability
Value
Features
Design
Usability
Ive never owned Hifonics before. I was restoring two projects at once, my 68 SS Camaro and a 72 C-10 Truck. After months of blogs, research and money going out faster than coming in, I looked away from the other Highly advertized brands and looked into the Hifonics brand who is made along with MB quarts, & Crunch for the power, warranty and price I couldn't be more excited with my decision. I've only had them installed a few months but man do they push and I haven't had any problems what so ever. Thanks Sonic Electronix for carring Hifonics products.
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February 25, 2012 Great Amp
Review by
Drew from Cameron Park, CA
Overall
Durability
Value
Features
Design
Usability
I hooked this amp to an FLI audio 10 in a spec ported box and it hits hella HARD!!! Would recommend this amp to anyone.
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View All 16 Reviews for Hifonics HFi100.2 (HFi 100.2)
Amplifier Wiring Kits
Get the wires you need to properly install and power your car amp.
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Monster Cable BAP300Monster Cable BAP300
8 Gauge Amplifier Installation Power Kit (No RCA Interconnects)
$40.00
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8 Gauge Amplifier Installation Kit with RCA Interconnect Cable
$49.99
Bass Remote Control
Control the volume level of your bass and amplifier from the front of the vehicle.
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Universal Remote Level Bass ControlUniversal Remote Level Bass Control
Controls bass level and frequency via RCA/Interconnect connectors on any amp.
$14.99
Small Universal Remote Level Bass ControlSmall Universal Remote Level Bass Control
The Scosche RLC is a smaller universal bass remote that connects via RCA inputs.
$12.99
Speaker Wire
Improve the sound quality by delivering more power when replacing your factory wiring. High quality speaker will maximize your amplifier investment and system performance.
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Kicker XW1220 Speaker WireKicker XW1220 Speaker Wire
12 Gauge Wire - 20 ft. of Dual Twist Speaker Cable with Sleeves for a Clean Install
$24.49
StreetWires SCP1215BL - 12 AWG Speaker WireStreetWires SCP1215BL - 12 AWG Speaker Wire
12 Gauge Wire - 15 ft. of Speaker Cable with Twisted Construction
$19.99
RCA Interconnects
You will need a good set of RCA interconnect cables to connect your amplifier to your head unit. Using high quality cables ensure the best sound possible by reducing unwanted noise interference, providing tight contacts, and utilizing the latest in cable technology.
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Kicker Z-Series RCA Interconnect CablesKicker Z-Series RCA Interconnect Cables
16.5 ft. of 2-Channel Kicker Interconnects with twisted pair conductors, gold plated contacts, and hyper-flex technology for easy installation!
$13.99
Capacitors
Capacitors store energy for the amplifier to use on demand, thereby assisting in the elimination of dimming lights during peak power surges during use.
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Raptor C1F ** SPECIAL PRICE **Raptor C1F ** SPECIAL PRICE **
True 1.0 Farad Car Audio Capacitor for up to 1000W Max
$34.99
e2 ECAP1 by Scosche - Mid-Level 1 Farade2 ECAP1 by Scosche - Mid-Level 1 Farad
Digital 1.0 Farad Car Audio Capacitor for up to 1000W Max
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Rockford Fosgate RFC1D - Top of the Line 1 FaradRockford Fosgate RFC1D - Top of the Line 1 Farad
Digital 1.0 Farad Car Audio Capacitor for up to 1000W Max
$104.99
Installation, Tools & Accessories
With our professional install card, you can have your amp installed by a pro near you, or you can purchase tools and do the install yourself.
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StreetWires FB4StreetWires FB4
4 AWG / 4 Gauge Firewall Bushing
$7.99
Kicker DB1448 (09DB1448) - Top of the Line!Kicker DB1448 (09DB1448) - Top of the Line!
Distribution Block with Two 1/0 or 4 AWG Inputs and Four 4 or 8 AWG Outputs
$18.99
Professional Installation for your Car Power AmplifierProfessional Installation for your Car Power Amplifier
Covers labor charges through our professional installer network.
$89.99
Testing and Performance
Optimize your system's performance with testing tools such as SPL meters, bass test discs and more!
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AutoSound 2000 CD-104AutoSound 2000 CD-104
The ultimate amplifier level setting disc used for evaluation of audio components
$12.99
AutoSound 2000 CD-102AutoSound 2000 CD-102
High Frequency Test CD specifically designed for the set-up and evaluation of sound system imaging and placement.
$12.99
AutoSound 2000 CD-103AutoSound 2000 CD-103
Audiophile reference series test disc for evaluation of all audio components.
$12.99

Product Summary

Manufacturer: Hifonics
Model number: HFi100.2
UPC: 806576216711
Weight: 6.50 lbs
Internal SKU: hfi1002
Internal product ID: 22698
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Customer Testimonial

I bought a r1000 fosgate amp and it fried. i sent it back and sonic replaced it with a new one no hassle. good service.

- Dill from Kansas

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