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Boss R3400D

3400W Max, Riot Series Class D Monoblock Car Amplifier

Available. Ships at Later Date

List price $299.99

You Save: $200.00 (66.67%)


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25% off a 4 Gauge Amp Kit with Purchase

You will need an amp kit to install your amp, and the Belva BAK42 is the perfect kit for this amp. For a limited time, when you click "Add Both to Cart", you'll receive 25% off the amp kit with the purchase of select amplifiers.




Boss R3400D



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Belva BAK42BK (Black)


Special Price $22.49 ($29.99 if purchased separately)

Belva BAK42BK (Black)

• Complete 4 Gauge 2-Channel Amplifier Installation Kit
• Designed Specifically For Car Audio Systems Up to 1000W RMS
• Premium Power and Ground Wire Provides Optimal Power Transfer

(Offer 1 of 1)

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General Features:

  • Riot Series Monoblock Class D Car Amplifier
  • RMS Power Rating:
    • 4 ohms: 1050 watts x 1 chan.
  • Max power output:
    • 2 ohms: 2000 watts x 1 chan.
    • 1 ohm: 3400 watts x 1 chan.
  • Wired remote bass level control included
  • Variable Bass Boost (0 to +12 dB bass boost at 50 Hz)
  • Mono channel operation
  • Variable low-pass filter
  • Subsonic filter
  • 4 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: 13-1/2"W x 10-7/16"D x 2-1/4"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.
1050 watts x 1 channels
Peak Power Output
This form of power rating refers to the maximum amount of power an electronic device can handle or output in an instant without damage. Often times this maximum is achieved during a brief musical burst, such as a drum accent or low bass hit. Some manufacturers display peak power ratings on the face of their products to increase the appeal to consumers. The RMS power rating is more accurate, and we recommend using it for product comparison. This is the peak power output for the amplifier's 5th channel.
3400 watts x 1 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.
Riot (Boss)
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.

3400 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.

1050 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.
Minimum Impedance Unbridged
The lowest impedance the amplifier will handle when it is not bridged.
1 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.
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.
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)
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/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.

Sonic Certified Amplifier
Sonic Certified amplifiers have been tested by the experts at Sonic Electronix to meet or exceed the wattage ratings provided by the manufacturer. If this is marked as Yes, then you can trust the wattage ratings. If marked as No, then we have tested the amplifier and it did not meet the advertised wattage ratings. If marked as Not Tested, then the Sonic Electronix experts have not yet been able to test the amp.
Amp Bluetooth Connectivity
This feature will tell you if the amplifier has the capability to connect to a Bluetooth device.

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


Dexter, MI

Boss R3400

July 17, 2014

I was a little hesitant in buying this amp because I read that someone had one and it overheated. I read other reviews and decided to go with it and for the last month I'm glad I did. I have it hooked up to a Alpine 10in R type and it does what I want it to do and my daughter loves it also

6 of 10 found this helpful

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memphis, Tn

great buy!!

February 2, 2015

Im really satisfied with my product. Does what it says and for a lesser price!!

2 of 4 found this helpful

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Amazing for the money

September 29, 2014

This amp is one of the best amps I've had I was scared at first to buy it bc it's a boss and when you think of boss it's not very good stuff but this amp is so amazing it pushes my one 12" at 2ohm so good it flexes my sunroom,front windshield,doors,mirror ever moves my hair it's truely a good amp for the money I'm sure there's amps that are better but if your looking for a cheap amp that will push your subwoofer good I highly recommend this amp

4 of 8 found this helpful

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Mobile, Al

Great amp and cheap

August 29, 2014

Very good amp for 100 bucks shipping was very fast I order it on Monday had it Wednesday

5 of 11 found this helpful

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Cleveland, OH

Handling the load

January 22, 2014

I have a Power Acoustik MOFO-122X (2700w 1500RMS) 12" sub hooked up to it running a 1ohms and it never shuts off. Also it ran with no problems in -15F weather.

3 of 7 found this helpful

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boss 3400D

January 6, 2014

This is a good product, and i recommand it. Boss 3400D is so special

4 of 9 found this helpful

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Newark, NJ

Great Amp

March 7, 2014

for under $100, this amp is a solid buy. it's 1 ohm stable and pounds my mismatch subs. i have it turned up 3/4 and bass boost is up all of the way @ 1 ohm. the bass remote is extremely precise, more so than the more expensive brands. it only gets warm @ 1 ohm, cold at 2 ohms and freezing @ 4 ohms. it does suck major voltage and i would recommend a second battery or extremely good cap. i currently have a 2 farad cap and my voltage drops to 10.9 volts sometimes. my lights dim. my alt is rated at 145 amps and charges at 14.2 to 14.7 volts. i mention this because i had doubts about it's power output. looking at my lights and volt meter, i no longer have any doubt about it's power output. i took a chance and it paid off. i wanted to feel it in my chest, now the ground feels it. my Yukon is on another level with this amp. i might have to get new subs soon :)

7 of 16 found this helpful

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Cordele, GA

Buy before U Judge any Item!

June 2, 2014

Bought this amp not from Sonic electronix another site anyways I've heard
people give Boss alot of flack i always make my own views after purchasing, But THis Amp is Powerful it pushes 2 15's DVC 4ohm woofers so so well amp is not even half wayz up & the Bass knob under the dash set at 41/2 knotches up Beatin like a marching band I luv this amp so I mess wit Boss the longway I don't have anything bad to say about this amp I give it 6 ******STARS ......

5 of 15 found this helpful

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Accessory Tools and Products

Accessories added

NVX XKIT42 100% OFC True 4 Gauge Wiring Kit with RCA Cables and Speaker Wire

The reviews speak for themselves, this is awesome wire with everything you need!

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Stinger SK4641 4 Gauge Wiring Kit

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Belva BAK42 4 Gauge Amplifier Installation Kit

Great amps need great wire at a great price. This amp kit has everything you need!

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NVX XBG3PK 1/0 Gauge OFC Big 3 Upgrade Kit

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

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Belva BBG3KT CCA 1/0 Gauge Big Three Kit

Features everything needed to upgrade factory power and ground wire.

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StreetWires FB4

4 AWG / 4 Gauge Firewall Bushing

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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)

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Belva BBSW167 16 AWG Speaker Wire

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

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Scosche SPL Meter SPL1000F

Handheld boomSTICK measures your SPL range from 60 to 135 dB

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Browse 1 question and 3 answers
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apline swr 12d2?
A shopper on Aug 12, 2014
Best Answer: Hello,

If you are asking/implying if this amp will work well with the Alpine SWR-12D2, then the answer is Yes, with a bit of hesitation however. The Alpine SWR series is a Performance Subwoofer, so ideally you want to match it with a Performance Amp to match that performance. The Boss R3400D, although a decent amp, is not meant to be matched with a High Quality Sub. In addition, although we get a 1ohm Rating, said rating is in MAX Power, not RMS, so we are not confident in saying you will get the desired power/performance you seek. Give our Product Team a call for possible alternatives.
Reply · Report · Customer SStaff on Aug 12, 2014
· Add Answer · I Have This Question Too (0)

Product Summary


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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: Boss R3400D

  • Boss Riot Series Car Amplifiers
  • How to Install a Car Amplifier