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Boss R3400D

3400W Max, Riot Series Class D Monoblock Car Amplifier

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6-Year Manufacturer's Extended Warranty When Bought Here!

List price $299.99

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Arrives by Friday, Aug. 7 to zip 98109

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Save 25% on a 4 Gauge Amp Kit with Purchase!

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Boss R3400D



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TruConnex TC4KIT-42B by Metra


Special Price $22.49 ($29.99 if purchased separately)

TruConnex TC4KIT-42B by Metra

• 4 Gauge Power Amplifier Installation Kit
• Ideal for Systems Up to 650 Watts
• Premium Power and Ground Wire Provides Optimal Power Transfer
• 2-Channel Twisted RCA Cables

(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 Platinum Internet Dealer
  • 1 year Sonic Electronix, and 5 years 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

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.


Warranty and Return Policy

Parts Warranty Duration
6 years
Labor Warranty Duration
6 years
Warranty Provider

Summary of Customer Ratings & Reviews

Rating Distribution

5 Star
4 Star
3 Star
2 Star
1 Star

Average Attribution Rating



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

12 of 22 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.

12 of 22 found this helpful

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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

12 of 23 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 ......

20 of 40 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!!

8 of 17 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

12 of 25 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 :)

13 of 28 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

9 of 21 found this helpful

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Accessory Tools and Products

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Browse 4 questions and 14 answers
Hide answersShow all answers | Sort by
can i use this amp to run a 2500 watt dual voice cover 15 in sub without blowing it?
A shopper on Jul 5, 2015
Best Answer: I suggest a different series of amp I have had 3 of them and burned them up on my subs boss is a good company but this series is not so good go with an armor series amp and match your rms on the sub to the rms on the amp
Reply · Report · grey s on Jul 5, 2015
· Add Answer · I Have This Question Too (0)
I Have 2 pioneer TS-w3003d4 hooked up to a Boss R3400D. I am running them now at 1 ohms but I think they are getting too much power. I need a expert opinion! If I wired them at 4 ohms running 1050 watts would it be safer? Or Would it be safer if I kept it running at 1 ohms at 3400 watts?
A shopper on Mar 7, 2015
Boss R3400D
Boss R3400D
Pioneer TS-W3003D4
Pioneer TS-W3003D4
Best Answer: The subs can handle the power. Keep them @ 1 ohm. Make shure your gain is set properly and turn the bass boost OFF. Use the bass remote for better control. If you are using a ported box, set the phase to reverses if the ports are away from you. If you are using a sealed box, set the phase to reverse if the woofers are facing the front of your car. Believe it or not, you will burn the coils faster in 4 ohms. Good luck.
Reply (1) · Report · Ryan S on Mar 8, 2015
· Add Answer · I Have This Question Too (0)
I'm wanting to buy the amp. I'm a little hesitant of buying it because the Boss brand isn't something to brag about because it doesn't usually do their rated power. It's replacing a JL Audio 500/1 that just recently died on me.

I'd buy another JL if I had the money. How does this amp do compared to the rest?
Jose M on Mar 26, 2015
Best Answer: I bought this amp after my Kenwood 1000 died and its a way stronger amp then the kenwood i really like it i haven't had it on a 1omh just a 2omh on two kickers if u need a good cheap amp this is the one
Reply (1) · Report · Jessica T on Mar 27, 2015
· Add Answer · I Have This Question Too (0)
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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Internal Product ID


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