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SoundStorm (SSL) EV400.4

400W 4-Channel Class AB Evolution Series Amplifier

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SoundStorm (SSL) EV400.4

400W 4-Channel Class AB Evolution Series Amplifier

$49.99

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Belva BAK44 4-Channel 4 Gauge Amplifier Installation Kit

Complete 4-Channel CCA 4 Gauge Amp Kit with RCA Cables and Speaker Wire

$29.99

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Kicker 4-Channel RCA Audio Interconnect Cable

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

$19.99

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NVX XWS1650 Speaker Wire

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

$19.99

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General Features:

  • Evolution Series 4-Channel Class AB Car Amplifier
  • Power Rating:
    • 4 ohms: 50 watts x 4 chan.
    • 2 ohms: 100 watts x 4 chan.
  • 4 channel operation
  • Soft turn on circuit
  • Variable high-pass filter (200 Hz fixed, 24 dB/octave)
  • Variable low-pass filter (120 Hz fixed, 24 dB/octave)
  • 4 gauge power and ground wiring is required for installation
  • Thermal overload and speaker short protection
    • Contact us for information regarding a discount on select amplifier kits from our website when purchased together with this amplifier
  • Dimensions: 7.5"W x 9"L x 1.75"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.
Evolution (Soundstorm SSL)
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.

400 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
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.
.01%
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.
Yes
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)
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
Channel Separation
Also referred to as crosstalk. The amount of interference on one stereo channel caused by the leaking of the other stereo channel. The higher the rating in decibels (dB), the better the Channel Separation.
60 dB
Fuse Rating
The amperage and the number of fuse(s) an amp requires.
15A x 1 
Hi-Res Audio Compatible
This feature refers to if the product is capable of Hi-Res Audio (HRA) playback.

Warranty and Return Policy

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

Summary of Customer Ratings & Reviews

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Accessory Tools and Products

Accessories added

Belva BAK44 4-Channel 4 Gauge Amplifier Installation Kit

Complete 4-Channel CCA 4 Gauge Amp Kit with RCA Cables and Speaker Wire

Your Price $29.99

Kicker 4-Channel RCA Audio Interconnect Cable

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

Your Price $19.99

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

NVX V-Series RCA Interconnect Cable

19 ft. of 4-Channel RCA cable with dual twisted-pair conductors

Your Price $11.99

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

NVX XWS1650 Speaker Wire

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

Your Price $19.99

NVX XWS1625 16 AWG Speaker Wire

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

Your Price $15.99

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

NVX XBG3PK 1/0 Gauge OFC Big 3 Upgrade Kit

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

Your Price $69.99

Belva BBG3KT CCA 1/0 Gauge Big Three Kit

Features everything needed to upgrade factory power and ground wire.

Your Price $34.99

XS Power BIG3XS 100% OFC 1/0 Gauge Big 3 Upgrade Kit

1/0 AWG Big 3 Upgrade Kit with 100% OFC Wire for Audio Sytems up to 350 Amps

Your Price $92.52

270 Amp G Series Alternator for Select 1994-2012 GM Vehicles

Most Popular! 270+ amps at anything above 1800 rpm engine speed!

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240 Amp S Series Alternator for Select 1992-2003 Dodge/Jeep Vehicles

240 Amp cutting edge 6 phase hairpin epoxy reinforced stator technology

Your Price $399.00

240 Amp L Series Alternator for Select 1963-1985 GM Vehicles

Specifically designed to fit in tight spaces

Your Price $399.00

250 Amp Alternator for Select 2003-2008 Ford/Lincoln/Mercury Vehicles

Cutting edge 6 phase hairpin stator technology with Twin internal rectifier plates with finned heat sink

Your Price $399.99

240 Amp S Series Alternator for Select 1999-2006 Jeep Vehicles

6 phase alternators use less horsepower per Kilowatt than conventional 3 phase alternators

Your Price $399.00

240 Amp S Series Alternator for 2011 Toyota Corolla

Ultra precision balanced rotor with oversized charge post ensure sturdy cable connections

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240 Amp S Series Alternator for 2006-2011 Honda Civic

15% more efficient than typical alternators

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370 Amp E Series Alternator with Black Finish for Select 1994 - 2003 GM

WOW 370 AMPS! Elite series offers the highest possible amperage

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320 Amp S Series Alternator for Custom and Racing Applications

Great for a Custom Project

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XS Power XP750 Special Edition

12-Volt Deep Cycle AGM Power Cell with 750 Max Amps

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Kinetik HC600-BLU

BLU Series 600 Watt 12V High Current AGM Car Audio Power Cell

Your Price $49.99

XS Power D545

12-Volt Deep Cycle AGM Power Cell with 800 Max Amps

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NVX XTGSP2

Perfect for safely troubleshooting and testing audio systems

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Scosche TK12

The perfect kit for installing a car stereo and amplifier for the first time

Your Price $18.99

Universal Wire Puller

Make your installation less of a chore and save yourself the stretch

Your Price $7.99

8 Gauge Ring Terminals, 5/16" Opening

Nickel Plated Brass - 5 Pieces (3 Red & 2 Black)

Your Price $1.99

0/1 Gauge Ring Terminals, 3/8" Opening

Nickel Plated Brass - 5 Pieces (3 Red & 2 Black)

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PRO Series Classic Short GM Battery Post Shoc-Krome

Side post battery adapter for GM type batteries (Positive or Negative)

Your Price $4.99

PRO Series Classic Long GM Battery Post w/ Shoc-Krome Plating

Side post battery adapter for GM type batteries (Positive or Negative)

Your Price $6.99

200 Amp Relay Isolator (BIR200)

Great for isolating a second batter making it dedicated to the stereo system

Your Price $39.99

120 Amp 4-Post Battery Isolator

Prevents primary battery discharge and extends battery life

Your Price $69.97

240 AMP 3-Post Battery Isolator

Prevents primary battery discharge and extends battery life

Your Price $124.60

World's Smallest AFS / Mini ANL Fuse Holder

Accepts 4 gauge or 8-gauge wire

Your Price $12.99

ANL/Mini-ANL Fuse Holder with 1/0 or 4 Gauge Input and Output

No-fail termination and current flow, it helps keep your system protected and running smoothly

Your Price $19.99

4 Pack of 80 Amp Nickel-Plated MANL Fuse

Mini-ANL (MANL/AFS) 80A Nickel Plated Fuses

Your Price $3.99

4 Pack of 100 Amp Nickel-Plated MANL Fuse

Mini-ANL (MANL/AFS) 100A Nickel Plated Fuses

Your Price $3.99

4 Pack of 150 Amp Nickel-Plated MANL Fuse

Mini-ANL (MANL/AFS) 150A Nickel Plated Fuses

Your Price $3.99

2 Pack of 200 Amp Nickel-Plated ANL Fuse

Two fuses per order. High quality 200 Amp ANL Fuses

Your Price $2.99

2 Pack of 300 Amp Nickel-Plated ANL Fuse

Two fuses per order. High quality 300 Amp ANL Fuses

Your Price $2.99

Gauge Reducer, 4 Gauge Input to 8 Gauge Pin

Great for amplifiers that do not accept a large gauge power wire

Your Price $5.99

Gauge Reducer, 1/0 Gauge Input to 4 Gauge Pin

Great for amplifiers that do not accept large gauge power wire

Your Price $6.95

NVX VUBT2

Universal Bluetooth Audio Receiver

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NVX XUBT3

Universal Bluetooth Audio Receiver & Volume/Playback Controller Knob

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Browse 4 questions and 6 answers
Hide answersShow all answers | Sort by
Why did you choose this?
Sonic Electronix Store
Bought this for my cousin and it looked worth 50 bucks plus the 3 yr warrant for 5 bucks sealed the deal since I know SSL probably is not the highest quality.
Steven P on Mar 26, 2015
they are good for highs
James M on Oct 21, 2014
Is the EV400.4 capable of running 2 ohms on channels 1 and 2 and 4 ohms on 3 and 4 simultaneously?
john r on Oct 10, 2014
Best Answer: Hello John,

No. No amplifier manufacture will ever disclose whether their amp is capable of doing this, because it is often NOT capable, and when capable WILL degrade the life of the amplifier. Point being; This amp will not support this setup, if it does it will shorten the life, and is a Warranty-Void application due to Improper use.
Reply · Report · Customer SStaff on Oct 12, 2014
· Add Answer · I Have This Question Too (1)
should i use the lowpass/high pass filters on this? the amps? or head unit?
A shopper on Mar 15, 2015
SoundStorm EV400.4
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NVX XEQ7
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JVC KD-S35
Best Answer: I have always used it on the amp. You could try the amp and set the head unit too? I am sure it couldn't hurt.
Reply · Report · Aaron F on Mar 15, 2015
· Add Answer · I Have This Question Too (0)
is this amp good for 6/9s ?
A shopper on Feb 19, 2015
Best Answer: Hello,

Like most Full Range amplifiers, the SoundStorm (SSL) EV400.4 is good for ANY Sized full range speakers, including 6x9.
Reply · Report · Customer SStaff on Feb 21, 2015
· Add Answer · I Have This Question Too (0)

Product Summary

Manufacturer

Model Number

EV400.4

UPC

791489121965

Weight

5.00lbs

Internal SKU

ev4004

Internal Product ID

75999

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: SoundStorm (SSL) EV400.4