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SPL FX1-5500D

5500W Max, Class D Monoblock Amplifier

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SPL FX1-5500D

5500W Max, Class D Monoblock Amplifier

$222.99

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NVX XKIT02 True 0-Gauge Wiring Kit

In case you didn't know, NVX has top notch wire for your new amp! Don't forget the RCA's!

$149.99

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NVX XFLOC2

80W 2-Channel Line Output Converter with Digital Noise Filter + Line Driver

$12.99

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AudioControl Epicenter-InDash

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$199.99

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  • FX1 Series 1-Channel Class D Car Amplifier
  • RMS Power Rating:
    • 4 ohms: 1700 watts x 1 chan.
    • 2 ohms: 2500 watts x 1 chan.
    • 1 ohm: 3200 watts x 1 chan.
  • Max power output: 5500 watts x 1 chan.
  • Fully regulated PWM Power Supply
  • Wired remote bass level control included.
  • LED power and protection indicators
  • Tuned Bass EQ (0-18 dB bass boost)
  • High Speed Digital Circuitry
  • Single channel operation
  • Bridging Synchronization
  • System distress indicator
  • 4-Way Protection circuitry
  • Mono speaker output connector
  • Nickel Plated Heavy Duty Power & Speaker Terminals
  • Phase Switch 0-180
  • Variable low-pass filter (50-150 Hz)
  • Subsonic Filter (15-40 Hz)
  • Frequency response: 15-150 Hz
  • Dimensions: 17.5" L x 10.3" W x 2.4"H
  • Authorized Internet Dealer
  • 1-year Manufacturer's warranty

Power Specifications - Subwoofer Channel

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 speaker(s) or subwoofer(s) 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. The 5th channel on these particular amplifiers are usually dedicated for driving subwoofers.
1700 watts x 1 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 speaker(s) or subwoofer(s) 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. The 5th channel on these particular amplifiers are usually dedicated for driving subwoofers.
2500 watts x 1 channels
RMS Power @ 1 ohm
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 speaker(s) or subwoofer(s) equals 1 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. The 5th channel on these particular amplifiers are usually dedicated for driving subwoofers.
3200 watts x 1 channels

Amplifier Specifications

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.

D
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.

5500 watts
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.

3200 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.
.5%
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)
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.

50 - 150 Hz
Subsonic Filter
Allows you to block (filter) ultra-low frequencies that your subs cannot reproduce.
15 - 40 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.
100 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 - 18 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.
30A x 5 
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
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

Rating Distribution

5 Star
62%
4 Star
23%
3 Star
15%
2 Star
0%
1 Star
0%

Average Attribution Rating

Durability
4.5
Value
4.8
Features
4.6
Design
4.4
Usability
4.7
Antonio

Clermont,FL

Overall
Durability
Value
Features
Design
Usability
Bridgeable?

February 12, 2010

I am looking to buy this amp & hook it up to 2-kicker cvx 2010 model. I wanted to know if this amp would be a good choice for them.

33 of 39 found this helpful

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TAZ

OMAHA, NE

Overall
Durability
Value
Features
Design
Usability
SPL FX1-5500D

September 7, 2009

THE SPL FX1-5500D IS A VERY POWERFUL AMP IT IS WORTH THE MONEY. IM VERY PLEASED WITH THIS AMP IT PUSHES MY MOFO 15S WITH NO PROBLEM. I LIKED THIS AMP SO MUCH I GOT MY LIL BROTHER TO BUY ONE FOR HIS SPL 15S. I WOULD RECOMMEND THIS AMP TO EVERYBODY AND ANYBODY

30 of 36 found this helpful

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david

Eden, NC

Overall
Durability
Value
Features
Design
Usability

July 11, 2008

the best amp i have ever owned the trick is finding subs that it wont blow i started off with 2 12" kicker cvrs one of them now has a 4 inch crack in the face and the other has burned up voice coils and the amp was turned way down now it is hooked up to 2 10" L7s i dominated the last sound competition with a 165 out of a mini cooper

28 of 34 found this helpful

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Billy J

Gansevoort

Overall
Durability
Value
Features
Design
Usability
Good for the money

June 14, 2011

Really good base. Allot of power available. Pretty good Amp for the price, I am very happy with it. It's big so dont plan on putting it under your seat because it probably wont fit.

28 of 35 found this helpful

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Julian

Memphis, TN

Overall
Durability
Value
Features
Design
Usability
Best amp I have had

November 6, 2011

This is one of the best amps I have ever owned. You can't match the power for the price! More bang for your buck!

26 of 32 found this helpful

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Schroeder

Winner, SD

Overall
Durability
Value
Features
Design
Usability
Wow

April 23, 2010

I have this amp running two Fi BL 18's and its nuts. For the price I couldn't be happier.

27 of 34 found this helpful

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Adam

Allegany, NY

Overall
Durability
Value
Features
Design
Usability
Great AMP for PRICE. but not the actual OUTPUT.

July 3, 2008

This AMP gives out some nice Power for the price. but i had 2 Pioneer Premier 12" subs in and it wouldnt play both.( they run at 1000watts RMS) so i figure this amp only puts out about 1000 to 1500 watts at 1ohm. but for this price your getting a good deal. i will be buying another one of these to run both of my Subs.

25 of 31 found this helpful

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Keith

New Bloomington, OH

Overall
Durability
Value
Features
Design
Usability
Great amp

November 14, 2014

pushing a set of 15's and a set of 12' and windows are flexin

23 of 28 found this helpful

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Earl

marianna, FL

Overall
Durability
Value
Features
Design
Usability
NOT TO BAD

February 7, 2012

This amp is not bad at all. has a lot of power it will not put out 5500 more like 1500 at most. thats a lot of power for the price try one you will like it

23 of 29 found this helpful

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seth

Monroe,N.C

Overall
Durability
Value
Features
Design
Usability
bang for free

September 21, 2009

i just hooked up this amp to two jl13w3. i did not expect how well it has done. power rating is over rated but i cant imagine finding an amp that will push this hard any cheaper. it also is running at 1 ohm. i have maxed this amp hard and so far no problems don't even get as hot as my infinity which is only running mids and highs. however looks could improve. overall great solid amp.

23 of 29 found this helpful

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HEAVYD

HAMMOND IN

Overall
Durability
Value
Features
Design
Usability
great buy great price

September 5, 2011

Yea i bought the spl fx1-5500d its a great amp it will push any sub but after six months it started blowing fuses

22 of 28 found this helpful

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Denis

Australia

Overall
Durability
Value
Features
Design
Usability
Worth it.

September 4, 2011

It pumped my dual 15's for last 6 month, and even in full power when heart try to come out from chest, it stays cool not warm :) I like it quality = money.

20 of 27 found this helpful

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yuster

akron

Overall
Durability
Value
Features
Design
Usability
the best value

April 2, 2015

I definitely recommend as far as food goes are the best and it sounds so so nice on my car I really recommend it try it

16 of 20 found this helpful

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Accessory Tools and Products

Accessories added

NVX XKIT02 True 0-Gauge Wiring Kit

In case you didn't know, NVX has top notch wire for your new amp! Don't forget the RCA's!

Your Price $149.99

Stinger SK6201 0-Gauge Wiring Kit

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Kicker KISLOC

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NVX XBBR

Looking to fine tune the bass in your vehicle? Look no further

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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

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NVX XIX25 X-Series RCA Interconnect Cable

16.4 ft. of 4-Channel X-Series RCA Cable with Dual Twisted Pair Hyper-Flex Technology

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NVX XWS1225 12 AWG Speaker Wire

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

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NVX XWS1625 16 AWG Speaker Wire

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

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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

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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

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

Specifically designed to fit in tight spaces

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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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Kinetik HC3800-BLU

Kinetik BLU Series 3800 Watt 12V High Current AGM Car Audio Power Cell

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SHURiKEN SK-BT140

4000W 12V High Performance AGM Power Cell Battery

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XS Power D2400

12-Volt Deep Cycle AGM Power Cell with 3500 Max Amps

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NVX XCAP10H

True 10 Farad Hybrid Stiffening Capacitor with Digital Display and Built-in Distribution Block

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Rockford Fosgate RFC10HB

Hybrid 10 Farad Digital Stiffening Capacitor

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Stinger SPC5010

10 Farad Pro Digital Hybrid Capacitor

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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

Five Piece Installer's Panel Removal Tool Kit

Remove panels the right way (Durable Nylon Plastic Pry & Chisel Tool Set

Your Price $11.99

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)

Your Price $4.99

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

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120 Amp 4-Post Battery Isolator

Prevents primary battery discharge and extends battery life

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240 AMP 3-Post Battery Isolator

Prevents primary battery discharge and extends battery life

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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

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4 Pack of 150 Amp Nickel-Plated MANL Fuse

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

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2 Pack of 200 Amp Nickel-Plated ANL Fuse

Two fuses per order. High quality 200 Amp ANL Fuses

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2 Pack of 300 Amp Nickel-Plated ANL Fuse

Two fuses per order. High quality 300 Amp ANL Fuses

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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

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Browse 1 question and 1 answer
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Why did you choose this?
Sonic Electronix Store
i am always willing to try new brands or use things that every one else is not really using plus sonic customers gave the spl good reveiws now i am going to see and hear what the talk is all about for my self
jerome t on Jan 30, 2015

Product Summary

Manufacturer

Model Number

FX1-5500D

UPC

709483025066

Weight

17.00lbs

Internal SKU

fx15500d

Internal Product ID

9463

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: SPL FX1-5500D