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Hifonics HFi55.4

440W RMS, 4-Channel HFi Series Amplifier (HFi 55.4)

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HFi Series 4-Channel Class A/B Car Amplifier • 110W x 4-Chan. @ 2 Ohms • 55W 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 hfi554

We apologize

This item has been discontinued

Product Highlights


HFi Series 4-Channel Class A/B Car Amplifier • 110W x 4-Chan. @ 2 Ohms • 55W 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 HFi55.4 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 HFi55.4 multi-channels the perfect choice.

  • HFi Series 4-Channel Class A/B Car Amplifier
  • RMS Power Rating:
    • 4 ohms: 55 watts x 4 chan.
    • 2 ohms: 110 watts x 4 chan.
    • Bridged, 4 ohms: 220 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: 13-1/2"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

Product history:

Hifonics HFi55.4 thumbnail
(newest, current model)
Hifonics TXi4408 thumbnail
(previous model, replaced by Hifonics HFi55.4)
Hifonics TXi4406 thumbnail
(previous model, replaced by Hifonics TXi 4408)

Specifications & Details


Power Specifications - Full Range Channels
RMS Power @ 4 ohms
55 watts x 4 channel
RMS Power @ 2 ohms
110 watts x 4 channel
Bridged RMS Power
220 watts x 2 channel
Amplifier Specifications
Amplifier Class
A/B
Number of Channels
4-Channel
Total RMS Power Output
440 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
25A x 2 
Warranty and Return Policy
Parts Warranty Duration
1 year
Labor Warranty Duration
1 year
Warranty Provider
Manufacturer

Item Details


Manufacturer:

Model Number:

HFi55.4

Weight:

10.00lbs

Internal SKU:

hfi554

Internal Product ID:

22700

Product and How-to Videos


Customer Ratings & Reviews



5 star
67%
4 star
27%
3 star
0%
2 star
7%
1 star
0%



Durability
4.4
Value
4.8
Features
4.6
Design
4.9
Usability
5

Customer Reviews

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great amp!

powerful, and dependable, highly recommend.

By louis on September 6, 2010

10

found this helpful.

Great amp for the price..

I never thought about using the Hifonics amps in a custom installation but I will tell you if you are on a budget and are looking for a quality product this is the amp for you. I resently installed a custom system in a customers truck with this amp and it sounds way better then I ever thought it would. I hooked 8 sets of 3/4" soft dome RF tweeters to this amp and it handles the task with-out getting hot or clipping. It also shows well if you are doing a show quality system as well.

By David on December 10, 2011

9

found this helpful.

Good sound but not really enough amp to push sub

The amp I got had great mids and highs 234 channel switch was broken I would recommend this amp to push 4 Fosgate 6x9 punch speakers or something like that not a sub Maxxsonics says power uprated 20 percent broken switch prob. A fluke if u want old school Hifonics take a pass on hf series go Zeus or Brutus depending on your wants

By Tom on April 19, 2011

7

found this helpful.

Great Amp! Highly Recommended

I was told these amps were the lower end amps, but I got it because of the price and I'm stubborn and I don't regret it one bit, it looks cool because it lights up. My highs sound so much better, very reasonable price, and never gets hot. If you are looking for a cheap amp but still good quality go with this amp.

By PapaDuck on September 20, 2011

6

found this helpful.

great amp!

Great amp. Design is nice. The HF lights up blue.. very nice amp.. great power for mid/highs.

By Chris on April 26, 2010

7

found this helpful.

Horrible amp

This amp is horrible spend the extra $20 on the brutus line trust me its worth it due to the cea compliance (true wattage)

By kicker man on June 12, 2012

5

found this helpful.

Awesome Amp!!!!!

This amp is easy to hookup. Easy to set. Amp produce power and clear for sound. Awesome amp and great price. Highly recommend to buy.

By Clifford on October 25, 2011

5

found this helpful.

Nice Amp!!

You can't beat this amp for the price!!! This amp is made by the same company that makes MB QUART!!

By Daryl on September 13, 2011

6

found this helpful.

Good amp maybe

I have this amp running four Hifonics Zeus ZXi 683 (85 watts rms @ 4 ohms) it does good under moderate load but if you crank it up the amp heats up and sounds washy. I still have to play around with a fan and other things to see if it helps but was shocked that it heated up so fast in a well ventalated area. also not sure if I lost a channel of if a wife got jacked but I only have three speakers working right now.

By Made In The CSA on September 10, 2011

5

found this helpful.

Hifonics HFi55.4

Unbelievable amp for the price, it blows you away. Highly recommended

By Rick on April 14, 2011

5

found this helpful.

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