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Hifonics Zeus ZXi80.4

640W RMS, Zeus Series 4-Channel Amplifier (ZXi 80.4)

4.6

(19 reviews)

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The product on this page is discontinued.
The Legend Redefined

There’s more to this multi-channel amplifier than meets the eye. Hifonics Zeus amplifiers are redesigned to not only look different, but also provide clean, true power. Designed to complement the Brutus Class D series of amplifiers, there’s no better match for a multi-channel amplifier. The newly implanted vertical fin heat-sinks are designed to allow maximum heat dissipation from the amplifier, which allows this amplifier to run much more efficiently and have less impact on your car battery. Their new series of amplifier is now CEA-2006 compliant, meaning their specifications have met CEA standards and their output is certified and true.

Zeus Amplifiers incorporate Ultra-Fi MOSFET output devices, which will decrease overall distortion and allow your amplifier to output nothing but pure high-fidelity audio. The smoothness of Ultra-Fi will remove electrical interference and noise that’s usually generated by amplifiers, and allow the user to enjoy noise-free music. Zeus amplifiers combined clean power, heat dissipation and Ultra-Fi circuitry makes this amplifier unrivaled for any application. The God’s have bestowed clean, pure power. Enough compromising – it’s time for a Zeus.

  • Zeus Series 4 Channel Class A/B Car Amplifier
  • RMS Power Rating (@ 14.4V):
    • 4 ohms: 80 watts x 4 chan.
    • 2 ohms: 160 watts x 4 chan.
    • Bridged, 4 ohms: 320 watts x 2 chan.
  • MOSFET power supply
  • Wired HFR-3 remote bass level control included
  • LED power (green) and protect (red) indicators
  • Variable Bass Boost (0 to +10 dB bass boost at 45 Hz)
  • 2/3/4 channel operation
  • Preamp RCA outputs to daisy chain multiple amps
  • 4-Way System Protection circuitry (thermal, overload, speaker short and DC protect)
  • Heavy duty aluminum alloy finned heatsink for maximum heat dissipation
  • Silver-plated unbalanced RCA level inputs
  • Silver-plated molded screw terminals
  • Input sensitivity:
    • Input Level (Balanced): 0.02V-6V
  • Variable low-pass filter (35-150 Hz)
  • Variable high-pass filter (10-15,000 Hz)
  • Crossover switch: HI/Full/LP/BP
  • Damping factor: >180
  • Frequency response: 10-45,000 Hz
  • Signal to noise ratio: 90dB
  • CEA-2006 compliant amplifier
  • Dimensions: 16-1/6"L x 9-1/4"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

Read more about the Hifonics Zeus ZXi80.4 in our blog!

Product History:
Hifonics Zeus ZXi80.4 thumbnail
(newest, current model)
Hifonics ZXi 4410 thumbnail
(previous model, replaced by Hifonics Zeus ZXi80.4)
Hifonics ZXi 4408 thumbnail
(previous model, replaced by Hifonics ZXi 4410)
Hifonics ZXi 4406 thumbnail
(previous model, replaced by Hifonics ZXi 4408)
Hifonics ZX4400 Zeus Series thumbnail
(previous model, replaced by Hifonics ZXi 4406)
Power Specifications - Full Range Channels
RMS Power @ 4 ohms80 watts x 4 channels
RMS Power @ 2 ohms160 watts x 4 channels
RMS Power @ 1 ohmN/A
Bridged RMS Power320 watts x 2 channels
Peak Power OutputN/A
Amplifier Specifications
Amplifier ClassAB
Number of Channels4
Total Peak Power OutputN/A
Total RMS Power Output640 watts
Maximum Input Gauge Size4 AWG
Minimum Impedance Unbridged2 ohms
Minimum Impedance Bridged4 ohms
THD at Rated RMS Power<0.05%
Speaker Level InputsNo
Preamp Outputs1 pair
Built-in CrossoverLow-pass (LP)
High-pass (HP)
High-Pass Crossover Frequency10 - 15,000 Hz
Low-Pass Crossover Frequency35 - 150 Hz
Subsonic Filter0 Hz
Signal-to-Noise Ratio>90 dB
Channel Separation>80 dB
Bass Boost0 - 10 dB
Bass/Gain RemoteYes
Fan CooledNo
Fuse Rating30A x 2 
CEA-2006 CompliantYes
Warranty and Return Policy
Return Policy Standard Return Policy
Parts Warranty Duration1 year
Labor Warranty Duration1 year
Warranty ProviderManufacturer
Customer Review Summary for Hifonics Zeus ZXi80.4
Average Customer Rating is 4.6 out of 5 stars:
4.6
based on 19 Reviews
Share your thoughts with others:
Rating Distribution:
5 star:
.
.
84%
4 star:
.
.
5%
3 star:
.
0%
2 star:
.
.
5%
1 star:
.
.
5%
what's this?
Average Attributes Rating:
Durability
4.5
Value
4.7
Features
4.8
Design
4.6
Usability
4.5
what's this?
Quick Comparison:
Most Helpful Customer Reviews:
February 28, 2012 Great
Review by
johhnybo from Australia, Australia
Overall
Durability
Value
Features
Design
Usability
Since buying this has powered four speakers for the last 6 months and has performed great.
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December 26, 2011 Great amp for the price.
Review by
kenneth from Sacramento, CA
Overall
Durability
Value
Features
Design
Usability
Beautifully made amp. Powers my Alpine SPS-610c components wonderfully. Hifonics always provides very good quality products for the price. Wouldn't buy anything else.
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December 22, 2011 Amps not good
Review by
Hector from cibolo, TX
Overall
Durability
Value
Features
Design
Usability
After installing the amp after five days quit working. I took it back to the shop and the installer said the output side of the amp doesn't work. Not good.
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November 16, 2011 Great amps for the price
Review by
Ryan from Puyallup, WA
Overall
Durability
Value
Features
Design
Usability
I have the 150.4 running my ID CTX65cs mids, and 80.4 running my tweets. These are excellent amps that do rated power. My front stage gets way louder then you would want to know, and sounds clean doing it.

(If you do not supply a large enough conductor for your current draw, of course one will cut out. Your autotek is simply taking more current draw and you are not providing enough for both amps. Next time run a 1/0 back to your amps with a dist. block and two 4ga. wires feeding the amps individually and you will be fine.)
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November 11, 2011 Awesome Amp
Review by
Jim from Ceres, CA
Overall
Durability
Value
Features
Design
Usability
The title says it all, this is an awesome amp. I have been into car audio for about 20 years and have had many different amps and these are high quality. It replaced a Rockford Fosgate P450.4, it has a warmer, cleaner sound and adds a nice punch to my components. My DVD's sound amazing. I have ordered a Hifonics Brutus BRZ1700.1D for my HX2 12's.
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View All 19 Reviews for Hifonics Zeus ZXi80.4
Amplifier Wiring Kits
Get the wires you need to properly install and power your car amp.
 ProductPriceAdd?
Kicker ZCK4Kicker ZCK4
Complete 4 Gauge Amp Wiring Kit with RCA Interconnect Cables and Speaker Wire!
$94.99
StreetWires ZN1K-04StreetWires ZN1K-04
4 Gauge (AWG) ZN1 Series Single Amplifier Installation Kit for Systems up to 1000 Watts
$37.99
Kicker PKD4Kicker PKD4
Dual Amplifier 4 Gauge Amp Installation Kit w/ Distribution Blocks
$119.99
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.
 ProductPriceAdd?
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.
 ProductPriceAdd?
Kicker 4-Channel RCA Audio Interconnect CableKicker 4-Channel RCA Audio Interconnect Cable
4 Meters (13 ft.) 4-Channel RCA Audio Interconnect Cable with Dual Twisted-Pair, Hyper-Flex Technology
$21.99
Kicker X-Series RCA Interconnect CableKicker X-Series RCA Interconnect Cable
19 ft. of 4-Channel X-Series RCA Cable with dual twisted-pair conductors, hyper-flex technology, and gold-plated k-cut collars for excellent signal transfer.
$44.99
StreetWires ZN9 Series Interconnect CableStreetWires ZN9 Series Interconnect Cable
16.4 ft. of 4-Channel RCA Cable with Rhodium-plated contacts and ZeroNoise construction for clear signal transfer!
$99.99
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.
 ProductPriceAdd?
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!
 ProductPriceAdd?
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: ZXi80.4
Product manual: Download the Hifonics ZXi80.4 Product Manual
UPC: 806576216841
Weight: 15.00 lbs
Internal SKU: zxi804
Internal product ID: 23553
Musical Mayhem Sweepstakes sponsored by MTX Audio. 3 winners, $2,300 in prizes!

Customer Testimonial

Sales people are always helpful and friendly.Pricing is great.The parts I need are always in stock.Great place to shop!

- Larry from Pittsburgh PA

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