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Hifonics HFi100.4

800W RMS, 4-Channel HFi Series Amplifier (HFi 100.4)

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HFi Series 4-Channel Class A/B Car Amplifier • 200W x 4-Chan. @ 2 Ohms • 100W x 4-Chan. @ 4 Ohms • Tri-Mode Speaker Operation • 4-Way System Protection Circuitry • Preamp RCA Outputs • Blue Illuminated Hifonics Badge

Learn more about the hfi1004

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This item has been discontinued

Product Highlights


HFi Series 4-Channel Class A/B Car Amplifier • 200W x 4-Chan. @ 2 Ohms • 100W x 4-Chan. @ 4 Ohms • Tri-Mode Speaker Operation • 4-Way System Protection Circuitry • Preamp RCA Outputs • Blue Illuminated Hifonics Badge

Description


Hifonics brand icon

Authorized dealer

Retro Look with New Design

The Hifonics HFi100.4 informs you of its main objective in the name, Hi-Fi audio. High end sound processing is the designs 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 a new series.

This four channel HFi series amplifier integrates Pulse Width Modulated MOSFET power supplies to allow for affordable power, while causing minimal draw on your cars electrical system. Its bridging options allow bridging from their 4 channel down to 3 channels. This allows the amplifier to drive a bridged channel for a sub, and two unbridged channels for normal output for components such as door speakers. The bridging options also allow for bridging to two separate dedicated channels, to allow for high output to subwoofers, or high powered components.

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 HFi100.4 multi-channels the perfect choice.

  • HFi Series 4-Channel Class A/B Car Amplifier
  • RMS Power Rating:
    • 4 ohms: 100 watts x 4 chan.
    • 2 ohms: 200 watts x 4 chan.
    • Bridged, 4 ohms: 400 watts x 2 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
  • 4/3/2 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 nickle-plated RCA level inputs
  • Silver nickle-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: 16-1/4"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

Specifications & Details


Power Specifications - Full Range Channels
RMS Power @ 4 ohms
100 watts x 4 channel
RMS Power @ 2 ohms
200 watts x 4 channel
Bridged RMS Power
400 watts x 2 channel
Amplifier Specifications
Amplifier Class
A/B
Number of Channels
4-Channel
Total RMS Power Output
800 watts
Maximum Input Gauge Size
4 AWG
Minimum Impedance Unbridged
2 ohms
Minimum Impedance Bridged
4 ohms
THD at Rated RMS Power
0.05%
Speaker Level Inputs
No
Preamp Outputs
1 pair
Built-in Crossover
Low-Pass (LP)
High-Pass (HP)
Full (AP)
High-Pass Crossover Frequency
60 - 12,000 Hz
Low-Pass Crossover Frequency
30 - 250 Hz
Signal-to-Noise Ratio
90 dB
Channel Separation
80 dB
Bass Boost
0 - 12 dB
Remote bass/level controller
No
Fuse Rating
30A x 2 
Warranty and Return Policy
Parts Warranty Duration
1 year
Labor Warranty Duration
1 year
Warranty Provider
Manufacturer

Item Details


Manufacturer:

Model Number:

HFi100.4

Weight:

12.00lbs

Internal SKU:

hfi1004

Internal Product ID:

22708

Product and How-to Videos


Customer Ratings & Reviews



5 star
41%
4 star
41%
3 star
18%
2 star
0%
1 star
0%



Durability
4.4
Value
4.6
Features
4.5
Design
4.5
Usability
4.6

Customer Reviews

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Pretty good

It's good for its price. Had it powering a set of Hifonics ZXi6.5s on the doors. They sounded great but I came across a RF punch 400.2 and it now the components sound way better. I'd say this amp does from 60-80 rms a channel instead of the 100 RMS. But I will be using this amp for my tweeters!

Can't rate on durability since I used it for about a month.

By JB on April 13, 2011

12

found this helpful.

Hifonics

I was able to tune it to my EQ, very easy set up...one down fall...goes into protection after a while on hot summer days

By Luis on January 13, 2011

11

found this helpful.

Best amp for the money

This is the best amp for your mid's and high's for the money. I have owned it for 6 months and I would recommend it to any one if you are a beginner or like me have thousands invested in your system you would not be disappointed. The other neat trick about this amp is that if you get eight 4 ohm speakers you can actually increase the 400watts output to 800 watts pushing all eight speakers with no problem and trust me you won’t need more power than that. This is the best little amp for your money.

By Pete on October 2, 2011

10

found this helpful.

Very nice.

Well only having this installed for 2 days so far, I must say im pretty impressed. I have it in 4 channel mode powering 2 sets of the T1652-s of the R. Fosgate components. Easy install and setup. Pretty cool here on the East Coast atm but this amp can and does get really hot. I love the amp it works exactly how I want and need it too. Overall I would recommend this amp for a fairly cheap 4 channel. So 2 things that I have small issues with is the amp getting hot and at top volume for long periods of time the amp will lower its output due to being hot. And yes I have it in a well vented spot in my trunk.

By Jay on February 21, 2010

9

found this helpful.

worth the money

Good amp. Clear highs. Have had it for 1 year no problems.

By cesar on December 16, 2011

8

found this helpful.

Not bad for the price ...

Recently purchased this amplifier and to be honest I don't think the RMS values are accurate at all ,... like a recent comment I read, I agree that the values are stretched a bit ... I put these numbers to the test and this amplifier did not hold up at all but for the price it does its job, just don't expect 400 R.M.S. out of this amplifier bridged

By ramon on April 27, 2011

9

found this helpful.

Great Amp

Has lots of power and sounds great.

By gone boating on February 6, 2011

9

found this helpful.

Good Amp

Great amp although it does get warm, puts out close to what it says.

By Kenneth on January 2, 2011

9

found this helpful.

HFi100.4

I purchased this amp to power a pair of planet audio bb690's and a pair of Alpine spe-5000 and they sound as clear a a bell.

By Tennessee's Finest on October 25, 2012

7

found this helpful.

great amp!

I purchased this amp to replace a 780 watt 2 channel pioneer amp. I have it hooked up to a pair of Alpine components in the front and SPL components in the rear. ( also purchased from SONIC) And I can not be happier. There is plenty of power and clarity. The Amp puts out a great deal of power and do not distort. Great amp for the price no complaints on it. I have been beating the heck out of it for several months now and it does not sweat.

By kasper4278 on September 17, 2011

8

found this helpful.

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