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Hifonics ZRX2000.4

2000W 4-Channel Class A/B Zeus Series Car Amplifier

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List price $469.99

$179.99

with warranty

You Save: $290.00 (61.70%)

Arrives by Friday, Aug. 8 to zip 98109

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General Features:

  • 4-Channel Class A/B Zeus Series Car Amplifier
  • Max Power Rating:
    • 4 ohms: 250 watts x 4 chan.
    • 2 ohms: 500 watts x 4 chan.
    • Bridged, 4 ohm: 1000 watts x 2 chan.
  • Simpatico coil design (SPC) Ultra-Fi Pulse Width Modulated MOSFET power supply
  • LED power (green) and protect (red) indicators
  • Variable Bass Boost (0 to +12 dB bass boost at 45 Hz)
  • Soft start turn-on
  • 4/3/2 channel operation
  • Preamp RCA outputs to daisy chain multiple amps
  • 3-way protection circuitry (thermal, overload, and speaker short protection)
  • Heavy duty aluminum alloy heat-sink for heat dissipation
  • Nickel-plated RCA level inputs
  • Nickel-plated screw terminals
  • Variable high-pass filter (60-13000 Hz, 24 dB/octave)
  • Variable low-pass filter (30-250 Hz, 24 dB/octave)
  • Frequency response: 10-45000 Hz
  • 8 gauge power and ground wiring is required for installation. Contact us for information regarding a discount on select amplifier kits from our website when purchased together with this amplifier.
  • Dimensions: 21-9/10"L x 10"W x 2-1/3"H
  • 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.

AB
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.
4
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.

2000 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.
4 AWG
Minimum Impedance Unbridged
The lowest impedance the amplifier will handle when it is not bridged.
2 ohms
Minimum Impedance Bridged
The lowest impedance the amplifier will handle when it is bridged.
4 ohms
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.
.05%
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.
No
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)
High-pass (HP)
High-Pass Crossover Frequency
The high-pass crossover frequency can be a fixed crossover point or a variable crossover range. A variable high-pass crossover allows you to select a specific crossover point which allows frequencies above the set crossover point to pass, while making frequencies below 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.

60 - 13000 Hz
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
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.
90 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 - 12 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.
Yes
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).
No
Fuse Rating
The amperage and the number of fuse(s) an amp requires.
40A x 3 
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.

No

Warranty and Return Policy

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

Summary of Customer Ratings & Reviews

Rating Distribution

5 Star
50%
4 Star
38%
3 Star
13%
2 Star
0%
1 Star
0%

Average Attribution Rating

Durability
4.1
Value
4.3
Features
4.4
Design
4.3
Usability
4.9

carter1010

Charlotte NC

Overall
Durability
Value
Features
Design
Usability

Good dollar per watt value

May 14, 2012

I bought this amp looking to run two JBL GTI 10 subs bridged. The subs are a dual 6 ohm coil but actually meter out closer to what a single 4 ohm sub would be when run parallel. 3.4 ohms or so. Anyway, I just finished setting my gains with the car running using an SMD-1 and I have some results for those of you interested in this amp. My car idles at around 13.8 volts for starters, big three uprade. Using a -10db test 40hz test tone I was able to get 698 watts per channel bridged at a 4 ohm load and 978 watts per channel at a 3 ohm load bridged. It seems to handle bridged to 3 ohms no problem. No overheating, sounds good, no complaints. It does a bit under rated power as you can see especially using the 4 ohm resistance load. I would assume at 14.4 volts it will in fact do rated power, but most of us don't have that luxury. Still 2 x 700 watts @ 4 ohms is very very respectable. The only complaint that I really have is out of the box the remote gain did not work. I will be working with hifonics to remedy this.

3 of 3 found this helpful

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nyc

nyc, ny

Overall
Durability
Value
Features
Design
Usability

ZRX2000.4

July 11, 2014

This amp is over rated. 2000 wats is not wat your getting. the box says cea certified but the amp is not. its an ok entry level amp for some mids and highs . But if your looking for power go with Rockford.you will not hear your system 4 blocks away with this amp if that wat your looking for.

0 of 0 found this helpful

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realboy

madisonville louisiana

Overall
Durability
Value
Features
Design
Usability

zrx20004

January 7, 2014

I have owned hifonics in the past. I am glad I chose hifonics again.

0 of 0 found this helpful

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snakey

Saint Lucia

Overall
Durability
Value
Features
Design
Usability

Works Fine ....

December 3, 2013

I bought this amp to power up my midrange speakers but first i tried them out on a 15' sundown audio sub and they hit good for a 4 channel so im guessing they will be perfect for my speakers but then the only thing is the remote knob dosent function, im not the first with this issue, why havent this been fixed and what is causing this, i do recommend the amp but the remote knob malfunction part is.....

0 of 0 found this helpful

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Kevin

Broken Arrow, OK

Overall
Durability
Value
Features
Design
Usability

Good Value

July 29, 2013

Good power for the money. Will not RMS the rated power at a 2 ohm load however the amps work well. Amps will heat up under a 2 ohm load and shut down without a fan blowing on them.

0 of 0 found this helpful

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rob-o

mims, fl

Overall
Durability
Value
Features
Design
Usability

good service

February 15, 2013

Jarett (2561) has helped me tremendously in setting up my sound system. not only was he knowledgeable but was always available for questions and returned calls in a timely manner.

0 of 0 found this helpful

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shinkaiser

Puerto Rico

Overall
Durability
Value
Features
Design
Usability

Great Power!

October 15, 2012

I love the sound Quality and graet Power! Hifonics ZRX2000.4

0 of 0 found this helpful

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d-boykustom

Richmond, VA

Overall
Durability
Value
Features
Design
Usability

hifonics zrx2000.4

May 14, 2012

I have two, one for my mid and one for highs. I have 4 8" and 6 6" and 6 tweeter and sound loud like 4 block away and that other one I have is for bass. I have 2 rockford fosgate T2 15".

0 of 0 found this helpful

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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

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 XIV45 4-Channel RCA Audio Interconnect Cable

5 Meters (16.4 ft.) 4-Channel RCA Audio Interconnect Cable with Dual Twisted Pair Hyper-Flex Technology

Your Price $23.99

Kicker K-Series RCA Interconnect Cable

19 ft. of 4-Channel RCA cable with dual twisted-pair conductors, hyper-flex technology, and gold plated contacts for maximum signal transfer!

Your Price $29.95

StreetWires ZN7 RCA Interconnect Cable

16.4 ft. of 4-Channel RCA Cable with hyper twist construction, oxygen free copper, and precision machined tips.

Your Price $59.99

Kicker 4-Channel RCA Audio Interconnect Cable

4 Meters (13 ft.) 4-Channel K-Series RCA Audio Interconnect Cable

Your Price $19.95

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

Scosche SPL Meter SPL1000F

Handheld boomSTICK measures your SPL range from 60 to 135 dB

Your Price $21.99

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

AutoSound 2000 CD-104

Audiophile reference series test disc for evaluation of all audio components.

Your Price $11.99

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Product Summary

Manufacturer

Model Number

ZRX2000.4

UPC

806576218562

Weight

14.00lbs

Internal SKU

zrx20004

Internal Product ID

44491

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 ZRX2000.4