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Sound Storm SSL F4.400

400W RMS, Force Series 4-Channel Amplifier (SoundStorm F4400)

Discontinued
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This item has been discontinued

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9.60

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Sound Storm SSL F4.400

$49.99

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  • Force Series 4-Channel Amplifier
  • Max Power Rating:
    • 4 ohms: 50 watts x 4 chan.
    • 2 ohms: 100 watts x 4 chan.
  • MOSFET power supply
  • LED power indicators
  • 4 channel operation
  • Speaker-level inputs
  • Heavy duty aluminum alloy heatsink
  • Chrome-plated RCA level inputs
  • Chrome-plated screw terminals
  • Variable low-pass filter (120 Hz fixed)
  • Frequency response: 12-22,000 Hz
  • Dimensions: 9"L x 7"W x 2"H
  • 8-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.
  • 1-year Manufacturer's warranty

Power Specifications - Full Range Channels

RMS Power @ 4 ohms

The RMS power rating is the measure of continuous power that an amplifier can output, or a speaker can handle. It is the most accurate depiction of real, continuous power that the industry has so far.

If the final impedance of your speakers or subwoofers equals 4 ohms, this is how much power this amplifier will supply at that ohm level. The higher the RMS wattage, the more clean and loud your music will sound.

50 watts x 4 channels
RMS Power @ 2 ohms

The RMS power rating is the measure of continuous power that an amplifier can output, or a speaker can handle. It is the most accurate depiction of real, continuous power that the industry has so far.

If the final impedance of your speakers or subwoofers equals 2 ohms, this is how much power this amplifier will supply at that ohm level. The higher the RMS wattage, the more clean and loud your music will sound.

100 watts x 4 channels

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.
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 RMS Power Output
Total RMS power is measured by multiplying RMS power per channel by the number of channels, and is calculated at the lowest level of operating impedance.

RMS power is the amount of continuous power, measured in watts, that an amplifier produces is called RMS power. The higher the RMS figure, the louder and cleaner your music sounds.

The RMS output figure is much more accurate than the peak rating when comparing products.

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.
8 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.
Yes
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.
No
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.

120 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
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.
90 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.
No
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.
15A x 1 
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
Strappable
Some amplifiers can be "strapped" together in order to increase the output of a single audio channel. These amplifiers feature RCA preamp outputs, allowing you to pass the signal directly from one amp to the other to ensure consistency.

Specials with this Item

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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
56%
4 Star
21%
3 Star
6%
2 Star
18%
1 Star
0%

Average Attribution Rating

Durability
4.2
Value
4.5
Features
3.9
Design
4.4
Usability
4.6

Chris

Montclair, NJ

Overall
Durability
Value
Features
Design
Usability

not bad for a budget amp, don't expect big things

July 23, 2010

Not bad for a budget amp, don't expect big things, 50 watts per channels x 4, really? Not really, more like 20-25 watts, which is not much more than some head units. Used it as bridge when my Hifonics Warror-Eagle bit the dust. Needed the small footprint. When I had enough bucks upgraded to Kenwood XR-4S.

2 of 2 found this helpful

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Kyle

Detroit, MI

Overall
Durability
Value
Features
Design
Usability

Not impressed

June 30, 2010

Installed with a pioneer deh-3000ib head unit and pioneer 6x8 4-way speakers. Sounded decent and got loud (nothing mind blowing for a guy that likes his music loud though), but removed for a day to try powering my speakers with the head unit. Sq shot way up (especially at louder volume) and spl remains the same if not louder than with the amp. Surprisingly still had excellent bass response from my 6x8s even after removing the amp. All in all felt like I wasted money on a 4 channel I didn't really need. Worked, just didn't do it as cleanly as my head units amp, and was overrated for rms power.

2 of 2 found this helpful

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Jay

Miami FL

Overall
Durability
Value
Features
Design
Usability

Low priced amp

November 9, 2013

I didn't own this amp for very long. It was purchased to power my mids and highs but it had an issue with its operation. Sonic Electronix took care of it and I chose to get a store credit in which I later used on a Viper 5704 alarm.

0 of 0 found this helpful

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Juan

Kissimmee,FL

Overall
Durability
Value
Features
Design
Usability

Great Value

September 28, 2013

I'll recommend this product, good power for a good price.

0 of 0 found this helpful

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Hooptyjeep

Ft Lauderdale, Fl

Overall
Durability
Value
Features
Design
Usability

A good amp, dollar for dollar.

February 1, 2013

I am very pleased with this amp! It was supposed to be temporary, until I could afford to repair my popular brand, pricey amp (the repair quote is double the price of this Sound Storm). - It is very durable, does not cut out, easy to mount, and can be used with various speaker setups, unlike other amps in this price range. In the near future, I'll definitely buy another Sound Storm!

0 of 0 found this helpful

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Chevy Cruze

Wisconsin

Overall
Durability
Value
Features
Design
Usability

Good for stock speakers

December 20, 2012

-Shipped fast - 4days -Arrived with everything in box, clean, undamaged. -HI-Inputs did not work, however the RCA inputs did. -Looks clean and sturdy. -Was easy to hook up, and still works today (4 month daily use) -Underpowered, no where near 50w @4ohm x4. -Couldn't power 60w RMS - 120w MAX 4ohm speaker. -Did however power a 25w MAX 4ohm speaker. -Overall it's clean and looks nice but it doesn't supply what it says it supplies. More like 30watt rms x4.

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Ali

Kuwait

Overall
Durability
Value
Features
Design
Usability

not good for 3rd party speakers

July 29, 2012

i think this boy is enough for amplifying your factory speakers , i installed it with x2 pair of jbl's speakers set max wattage 380 for the 4 speakers i don't think this thing pushes 100 watt for them its not close for 20 watt per speaker , don't repeat my mistake if you have a set of high end speaker get a high end amp with them from brands like pioneer,kenwood,rockford i forgot to mention it make annoying noise with rpm load when you accelerate you will hear more annoying noise from the speakers i think because its trying to reach its peak power .

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Bill

Manassas,VA

Overall
Durability
Value
Features
Design
Usability

Big Thanks works Great

July 10, 2012

I was able to install this amp and I am very happy with the result. would buy again from this seller.

0 of 0 found this helpful

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breal39

edgewater nj

Overall
Durability
Value
Features
Design
Usability

great deal

July 1, 2012

the price was great and 6 months later it still sounds great. I would buy this again in a heartbeat.

0 of 0 found this helpful

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Sam

Santa Paula, CA

Overall
Durability
Value
Features
Design
Usability

Great product for the price!

April 11, 2012

I installed this amp as an addition to my other 200W Sound Storm amp. I'm very pleased with the sound quality and look forward to purchasing more products from you guys in the near future. Thanks!

0 of 0 found this helpful

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Mario

stow, OH

Overall
Durability
Value
Features
Design
Usability

Great amp for the price

December 16, 2011

If it wasn't for this amp, my speakers wouldn't of been worth it. Made them so much louder!

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Drew

Tucson, az

Overall
Durability
Value
Features
Design
Usability

Ssl f4.400 amp

November 7, 2011

For the price you can't go wrong. If your running loud subs and need the speakers to keep up with the bass then go with this amp if money's a problem. I have had this amp for six months and it still performs like it did the day I got it.

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nc-stereoman

Asheville, NC

Overall
Durability
Value
Features
Design
Usability

You get what you pay for

October 23, 2011

What do you expect from an amp that costs less than 50 bucks? Don't expect much of anything, and this amp will fill the bill. The output from this amp comes from two old-school two-channel hybrid modules that produce no more than 16WRMS per channel. That's right. Sixteen. There is no switching power supply in this amp, the output modules run on straight battery 12V, so there's no way it can produce more power than that running an old school class AB power module. How do I know all this? Because the amp failed after 3 months of use - blown output module - and I repaired it.

0 of 0 found this helpful

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BigJack

Miami Fl

Overall
Durability
Value
Features
Design
Usability

Sound Storm Amp

October 18, 2011

I was looking for a small budget amp. This fit the bill. It was rated at 50 watts rms a channel and cost about 50 shipped. Not a bad little amp but I am pretty sure it is not putting out 50 amps per channel. For the budget conscious person this is not a bad amp but for a little more you could find better. If you budget is super low go for this amp. If you can spend more shop around.

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MIKE

HARLINGEN texas

Overall
Durability
Value
Features
Design
Usability

good product

October 16, 2011

Item was new and contained everything you need. Shipping was fast and easy. Loving the product. No problems yet. Recommended.

0 of 0 found this helpful

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User

Bay Area, CA

Overall
Durability
Value
Features
Design
Usability

Not bad for Price

October 4, 2011

The factory amp in my Yukon died. Wanted something that was inexpensive that would put sound to the speakers. Bought this amp, and I was surprised with the sound that was produced. For such an inexpensive piece, my hopes were pretty low, but this amp totally floored me when I got it hooked up.

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Jimmy

brooklyn, MI

Overall
Durability
Value
Features
Design
Usability

Good amp

September 11, 2011

This amp is what I expected for the money. Nothing special, but still works fine. I have this wired to 2 6x9s and 2 6.5s. The sound through the speakers is now rockin' and crystal clear. I would not recommend this amp for powering a big sub, but for my use it works great.

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brian

Auburn, AL

Overall
Durability
Value
Features
Design
Usability

awesome

August 23, 2011

Works great love it!

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roger

tulsa, ok

Overall
Durability
Value
Features
Design
Usability

u cant beat it for a budget driving hi end speakers!

July 17, 2011

Bought this on a whim for 45 bucks. Didnt expect much, but was i suprised. Those cryin dudes up the ways sayin that the rms was 22wts. Need a head examination! And i have a pioneer 6200bt head unit that doesnt compare n amplification. This little baby powers 4 mbquart onyx 6x9's and 2 6.5" quart onyx annd on pair of kicker ks 6x9's in the front door of my Tahoe. The real amazing thing is it gets barely warm after long periods of use! I liked it so much got a 1200w one to fire my rock.Fosgate 12" punch subs! Im an old dude..The kids with thier 5grand systems are truely amazed in this town. I recommend this little baby all day long. Just wish it was able to b daisy chained. For 45 bucks i aint complaining though.

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AJ

Orlando, FL

Overall
Durability
Value
Features
Design
Usability

Good Value

April 18, 2011

This amp is perfect for highs and mids. For the price, I really don't think you can go wrong or expect it to do better than what it can.

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Accessory Tools and Products

Accessories added

NVX XKIT84 4-Channel 8-Gauge Wiring Kit

In case you didn't know, NVX has top notch wire and this kit has everything you need!

Your Price $69.99

StreetWires ZN1K-08 8-Gauge Wiring Kit

Great wire for your awesome new amp! Don't forget the RCA's!

Your Price $16.95

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

Universal Remote Level Bass Control

Controls bass level and frequency via RCA/Interconnect connectors on any amp.

Your Price $7.99

Small Universal Remote Level Bass Control

The Scosche RLC is a smaller universal bass remote that connects via RCA inputs.

Your Price $11.99

StreetWires FB4

4 AWG / 4 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

StreetWires ZN9 Series Interconnect Cable

16.4 ft. of 4-Channel RCA Cable with Rhodium-plated contacts and ZeroNoise construction for clear signal transfer!

Your Price $99.95

Kicker 4-Channel RCA Audio Interconnect Cable

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

Your Price $19.95

NVX XWS1225 12 AWG Speaker Wire

25 ft. of True 12 Gauge 100% Copper EnvyFlex Speaker Cable/Wire

Your Price $39.99

NVX XWS1250 Speaker Wire

50 ft. of True 12 Gauge 100% Copper EnvyFlex Speaker Cable/Wire

Your Price $29.99

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

The Install Bay IB-CAP1F

True 1.0 Farad Car Audio Capacitor for up to 1000W Max

Your Price $37.99

e2 ECAP1 by Scosche - Mid-Level 1 Farad

Digital 1.0 Farad Car Audio Capacitor for up to 1000W Max

Your Price $49.99

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-102

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

Your Price $11.99

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Product Summary

Manufacturer

Model Number

F4.400

UPC

791489110839

Weight

3.50lbs

Internal SKU

f4400

Internal Product ID

17629

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: Sound Storm SSL F4.400