Expert Service 1-877-289-7664 [Hours]

Hifonics ZRX2400.1D

2400W Max Class D Monoblock Zeus Series Amplifier

In Stock

List price $459.99


with warranty

You Save: $280.04 (60.88%)

Order within 10 hrs 47 mins to ship today

Arrives by Wednesday, July 16 to zip 98109

Add an Extended Warranty

Fast, Free Shipping

Within the US 48

60-Day Money-Back

Hassle Free Returns

Low Price Guarantee

Seen it for less? Click here

365-Day Coverage

Warranty assistance for a year

In Stock, ships today

Arrives by Wed, July 16

Bundled Savings with this Product


25% off 0/1 Gauge Amp Kit with Select Amplifiers!

Save 25% off the Belva BAK02 install kit, you will need an amp kit to install your amp, and this is the perfect kit for this amp.




Hifonics ZRX2400.1D



25% OFF

Belva BAK02


Special Price $44.99 ($59.99 if purchased separately)

Belva BAK02

• 1/0 Gauge Complete 2-Channel Amplifier Installation Kit
• ANL Fuse Holder With A 150 Amp ANL Fuse
• For Car Audio Systems Up To 1500 Watts RMS
• Premium Powerflex Power And Ground Wire
• Helical Twist Construction Audio Interconnect RCA Cables

(Offer 1 of 1)

Combined Total Price


You Save $15.00

  • Zeus Series Single Channel Monoblock Class D Car Amplifier
  • Max Power Rating:
    • 4 ohms: 650 watts x 1 chan.
    • 2 ohms: 1200 watts x 1 chan.
    • 1 ohms: 2400 watts x 1 chan.
  • Max power output: 2400 watts
  • Simpatico coil design (SPC) Ultra-Fi Pulse Width Modulated MOSFET power supply
  • LED power (blue) and protect (red) indicators
  • Wired HFR-3 remote bass level control included
  • Variable Bass Boost (0 to +10 dB bass boost at 45 Hz)
  • Blue illuminated Hifonics badge
  • Soft start sound function
  • Mono channel operation
  • Preamp RCA outputs to daisy chain multiple amps
  • 4-Way System Protection circuitry (thermal, overload, DC, and speaker short protection)
  • Dual 12 gauge speaker terminals simplify hookup
  • 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 low-pass filter (30-250 Hz, 24 dB/octave)
  • Subsonic filter (15-35 Hz)
  • Damping factor: >200
  • Frequency response: 15-250 Hz
  • Dimensions: 17-3/16"L x 10"W x 2-7/16"H
  • 0-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

Amplifier Specifications

Amplifier Series
This designates the series of the amplifier. Many amps are available in a litany of different wattage and channel configurations, but maintain consistent features throughout the product line.
Zeus (Hifonics)
Amplifier Class

An amplifier increases the power of the signal being fed to it by taking energy from its power supply and matching the signal but increasing its amplitude. Amplifiers use many different methods for converting these electrical signals and have been categorized into classes.

Class A/B: Greater than 50% of the input signal is amplified while the other percentage is “off”. These amplifiers have a small amount of current flowing through the output transistors all the time which almost eliminates crossover distortion. Class A/B has great sound quality but is not as efficient as class D. These amps are most commonly used to drive speakers.

Class D: Also known as switching amplifiers, class D amps have output transistors that are completely turned “on” or “off”. This means that when the transistors are on, there is almost no voltage across them but when they are off there is significant voltage but no current flowing through it which makes these amplifiers very efficient at the cost of sound quality. These amps are most commonly used to drive subwoofers.

Other Classes: You may see classes such as GH, bD, X, FD, etc. by some manufactures. These amplifiers tend to be either class A/B, D or a hybrid of the two but with improvements to their designs that can make them more efficient or offer better sound quality.

Number of Channels
Each channel on an amplifier will power one speaker using a positive and negative cable. There are various types of amplifiers, each designed to power a certain number of speakers. Monoblock amplifiers, also known as single channel, are designed to power one or more subwoofers. These amplifiers often have very high power ratings. On the other hand, multi-channel amplifiers power multiple speakers, usually at lower power ratings. 2-Channel and 4-Channel amplifiers can power car speakers or low powered subwoofers. Occasionally you might see a 5 or 6-channel amplifier that can power speakers and subwoofers at the same time. The most common setup is a monoblock amp to run subwoofers and a 4-channel amp to run door speakers. Check out our Knowledge Base for more information.
1 - Mono
Total Peak Power Output
The total peak power output is measured as the wattage per channel multiplied by the number of channels, and is calculated at the lowest level of operating impedance.

It is measured during a brief musical burst, such as a sudden drum accent. Some manufacturers display peak power ratings on the face of their products to increase the appeal.

The RMS power rating is more accurate, and we recommend using it for product comparison.

2400 watts
Maximum Input Gauge Size
This is the largest gauge wire that will fit into the power and ground terminals of this device. The lower the gauge number, the thicker the wire is. For example, a 4 gauge wire is thicker than an 8 gauge wire and thus has higher current carrying capacity. Always do your best to get this size wire to reduce the risk of damage to your components.
1/0 AWG
Minimum Impedance Unbridged
The lowest impedance the amplifier will handle when it is not bridged.
1 ohms
Minimum Impedance Bridged
The lowest impedance the amplifier will handle when it is bridged.
Not Bridgeable
THD at Rated RMS Power
The amount of change in harmonic content of the signal as it is amplified. A lower figure indicates less change and a more accurate amp. THD below 0.10% is inaudible.
Speaker Level Inputs
Speaker level inputs are commonly referred to as high-level inputs and vice versa. This input type allows you to get your audio signal directly from the speaker wire in your vehicle, instead of using RCA cables. The advantage of this is factory integration, as most stock radios do not have RCA outputs to run amplifiers.
Preamp Outputs
Many amplifiers are equipped with RCA preamp outputs which pass the original music signal from the source to additional amplifiers. This is known as daisy chaining because the source connects to the first amp, and the first amp connects to the second amp, etc. The advantage to daisy chaining is you only need one 2-channel RCA cable to transfer the signal from the head-unit to the amplifier, and then one additional cable for each amp being daisy chained.
1 pair
Built-in Crossover

A crossover is a type of filtering system that permits only certain frequencies to play. A Low-Pass (LP) crossover allows only frequencies below its setting to get through which is good in the case of some subwoofers. A High-Pass(HP) filter allows frequencies above its setting to pass through, this is normally used on speakers.

When a crossover is set to FULL it means no filtering is added and the full frequency spectrum is allowed through the amplifier. Filtering is important because feeding a speaker frequencies it cannot reproduce effectively creates distortion.

Low-pass (LP)
Low-Pass Crossover Frequency
The low-pass crossover frequency is typically used for subwoofers. It can be a fixed crossover point or a variable crossover range. A variable low-pass crossover allows you to select a specific crossover point which allows frequencies below the set crossover point to pass, while making frequencies above the set point gently or harshly roll-off, depending on the steepness of the slope.

The steepness of the roll-off slope is measured in dB/octave and refers to the rate of attenuation (lowering of volume) outside their pass bands.

30 - 250 Hz
Subsonic Filter
Allows you to block (filter) ultra-low frequencies that your subs cannot reproduce.
15 - 35 Hz
Signal-to-Noise Ratio
This spec compares the strength of the signal to the level of background noise. A higher value indicates less background noise.
<0.1 dB
Bass Boost
The objective of the bass boost is to get more kick out of your subwoofer. It is a circuit that emphasizes the lower frequencies at a given point. The bass boost should always be set first before setting the gain. This feature is known for destroying subwoofers and is commonly used incorrectly, so be cautious.
0 - 10 dB
Bass/Gain Remote
If the amp comes with a bass/gain remote you will be able to control the level of your bass from your dashboard. Typically bass remotes also include a 16-20 ft. wire for installation.
Fan Cooled
A great feature to have if an amp generates a large amount of heat. Cooling fans can help regulate the temperature to prevent the amp from overheating (burning).
CEA-2006 Compliant
Amplifiers that have been tested to meet specific standards. When a car amplifier meets these standards, you can be sure that it will be able to produce the amount of power specified by the official CEA-2006 rating. Usually, these rating consist of the following items:
  • RMS Power
  • Signal-to-Noise Ratio

This rating applies to both external car amplifiers, as well as the amplifiers inside of in-dash stereos.


Warranty and Return Policy

Parts Warranty Duration
1 year
Labor Warranty Duration
1 year
Warranty Provider

Summary of Customer Ratings & Reviews

Rating Distribution

5 Star
4 Star
3 Star
2 Star
1 Star

Average Attribution Rating



PhoenixPhoenix, AZ


absolutly great

May 12, 2014

This amp is great. Puts out 2380 watts rms read with a dmm at 60htz. I have this amp pushing 2 alpine 12in type R's and I only have this amp at like 40% it straight slams. So glad I bought this amp. Would recommend to anyone looking for a great 1 ohm stable amp that puts out lots of power. The only this I have to complain about is that the feet used for mounting are plastic while the rest of the amp is pure aluminum. They brake very easy. But other then that no complaints at all.

1 of 1 found this helpful

Help our customers find the most helpful reviews




Tons of power all day!

April 22, 2014

I actually work at a local car audio shop that does not sell Hifonics products but have seen them in customers vehicles and was impressed with what I saw and heard. I had a goal in mind to put a "budget system" together in my 98' Tahoe with some RF P315D4's I had from a previous build. This amp is bridged down to the 1ohm load and does NOT get hot. Has been bangin' my 15's since I got the amp. Hits so hard it rattles your teeth no joke. I have demo d' it to some customers that have been looking for a good power alternative thats not too expensive for some really good/clean power. I will buy more Hifonics products from you.

1 of 1 found this helpful

Help our customers find the most helpful reviews


chicago Ill



March 16, 2014

Very power efficient doenst suck up alot of power just a great product

1 of 1 found this helpful

Help our customers find the most helpful reviews


Wynne Ar



April 28, 2014

Great product i have it pushing 4 12's and the sound is awesome..

0 of 0 found this helpful

Help our customers find the most helpful reviews




Great Amplifier

April 28, 2014

It really doesn't state the actual rms it only says its rated at 2400 watts at 1ohm. However it does sound great, i have two 12 inch Boss Phantoms hooked up at 1ohm in a sealed enclosure. The subs are rated 1150 watts each so that makes them a perfect match. Regardless if actually puts out that power i am completely satisfied and my sound sound system is extremely loud for the price.

0 of 0 found this helpful

Help our customers find the most helpful reviews


Jamaica NY


Great value, incredible sound

April 13, 2014

I have 2 jl audio w6's hooked up to this amp and all I can say is wow. This amp delivers tremendous bass without all the flashy lights that other models have. I would reccomend this amp to anybody that wants great power at a great value

0 of 0 found this helpful

Help our customers find the most helpful reviews

West side

San Diego ca


Lots of power

February 11, 2014

I'm pushing 3 JL Audio 12 w 6 V2 subs with one of these Hifonics amps , & it makes your teeth rattle, & does not get hot!

0 of 0 found this helpful

Help our customers find the most helpful reviews


burnettsville, IN


very happy

November 10, 2013

I had hiphonics products in the early 90's and was worried the quality would not be the same. But I was wrong the quality is even better. I would recommend this to anyone wanting a great product at a low cost. The service and shipping with sonic was great as well.

0 of 0 found this helpful

Help our customers find the most helpful reviews




Seem's to be good for the money.

September 19, 2013

I have this powering two 400w rms 12" subs at 4 ohms and it sounds great, looks pretty nice, and feels well built, it's actually kind of heavy. This amp doesn't even get warm to the touch, were as my old 1200w Xplode at 4 ohms bridged would over heat and cut out after 20-25 mins of solid playing unless I had a fan on it. So far the only thing I don't really like are the end caps that have the mounting holes because they are made of plastic. And yes I know I'm not even really using it at 4 ohms, but hopefully soon I can upgrade to some bigger subs so I can really see this thing work, but I will re-review this later on down the road.

0 of 0 found this helpful

Help our customers find the most helpful reviews

Accessory Tools and Products

Accessories added

NVX XBG3PK 1/0 Gauge OFC Big 3 Upgrade Kit

Comes with everything you need to upgrade your power and ground wire.

Your Price $79.99

Kicker Big 3 Package 1/0 Gauge Big 3 Upgrade Kit

Get all you need including wire cutters to upgrade your power and ground wire.

Your Price $149.99

Belva BBG3KT CCA 1/0 Gauge Big Three Kit

Features everything needed to upgrade factory power and ground wire.

Your Price $39.99

StreetWires FB8

8 Gauge Firewall Bushing

Your Price $6.95

Stinger Gauge Reducer (0/1 AWG to 4 AWG)

Chrome gauge reducer allows 0/1 AWG cable to fit in 4 AWG inputs

Your Price $7.99

NVX XDBU4 - Top of the Line!

Distribution Block with Two 1/0 or 4 AWG Inputs and Four 4 or 8 AWG Outputs

Your Price $17.99

Professional Installation for your Car Power Amplifier

Covers labor charges through our professional installer network.

Your Price $89.99

NVX XIV25 V-Series 2-Channel RCA Cable

16.4 ft of V-Series 2-Channel RCA Audio Premium Interconnect Cable with Dual Twisted Pair Hyper-Flex Technology

Your Price $11.99

NVX XWS1625 16 AWG Speaker Wire

25 ft. of True 16 Gauge 100% Copper EnvyFlex Speaker Cable/Wire

Your Price $13.99

Belva BBSW127 12 AWG Speaker Wire

12 Gauge 7 Meter (23 Ft) Speaker Wire (CCA)

Your Price $14.99

Belva BBSW167 16 AWG Speaker Wire

16 Gauge 7 Meter (23 Ft) Speaker Wire (CCA)

Your Price $12.99

SMD DD-1 Distortion Detector

Set the gain of an audio amplifier quickly and accurately

Your Price $149.99

Scosche SPL Meter SPL1000F

Handheld boomSTICK measures your SPL range from 60 to 135 dB

Your Price $21.99

AutoSound 2000 CD-104

The ultimate amplifier level setting disc used for evaluation of audio components

Your Price $11.99

AutoSound 2000 CD-102

High Frequency Test CD specifically designed for the set-up and evaluation of sound system imaging and placement.

Your Price $11.99

Product Summary


Model Number






Internal SKU


Internal Product ID


Sonic Electronix Wiring Guide

Wiring Diagram Legend

Warning: The image depicted shows the resistance change when wiring multiple subwoofer terminals. Please refer to your subwoofer's owner's manual for the proper wiring of its terminals. Sonic Electronix, Inc. is not responsible for damage caused to your audio system or vehicle due to improper installation. Please call tech support at 1-877-289-7664 if you require additional assistance.

Product Name: Hifonics ZRX2400.1D