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BOSS Audio Systems R2504 4 Channel 1000 Output Class A/B Car Amplifier

Based on 665 reviews
Condition: New
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$134.99
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Availability: In Stock.
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Arrives Thursday, Oct 29
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At a glance

Condition
New
Style
1000W 4 Channel
Model
R2504
Dimensions
10.7 x 10.4 x 2.3 in
Weight
5.8 lb
Material
Metal
Mounting Type
Surface Mount
In the box
Instruction manual

Features 8

  • Power - 250 Max x 4 @2-Ohms, 125 Max x 4 @4-Ohms, 500 Max x 2 Bridged @4 Ohms
  • Class A/B Topology - Class A amplifiers have enormous amount of current flowing through its output transistors with no audio signal. Class B amplifiers have no current flowing through its outputs with no audio signal
  • Full Range - With a Full Range amplifier you not only have the option to run your speakers, but also your subwoofers
  • Variable Gain Control - The gain control is not for adjusting volume. It simply adjusts the amount of signal that is coming from your receiver and going to your amplifier

Description

Get your music pumping with the Boss Audio Riot R2504 Class A/B 4-Channel Full Range Amplifier. This 2-Ohm stable Amplifier features 1000 Watts Max Power with a MOSFET power supply to maximize your music. Customize the sound with Variable Low Pass Crossover, High Pass Crossover and Bass Boost. Tweak the Bass with the Remote Subwoofer Control. Bridge channels for more power and flexibility. Amplifiers in the Riot Series are perfect for first time car audio buyers looking to add Bass, enhanced sound and performance to their system at an affordable price. Pump up the volume with the Boss Audio R2504. For further product details, please scroll down.

Specs 18

Item dimensions L x W x H 10.7 x 10.4 x 2.3 inches
Manufacturer BOSS Audio Systems
Mounting Type Surface Mount
Brand BOSS Audio Systems
Number of Channels 4
Output Power 250 watts
Package Type Name MOSFET Car Amplifier with Remote Subwoofer Control
Item Dimensions 10.7 x 10.4 x 2.3 inches

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If you place your order now, the estimated arrival date for this product is: Thursday, Oct 29

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Top Amazon Reviews


Sounds great!
Style: 1000W 4 Channel
Perfect for what I needed it for
Reviewed in the United States on August 14, 2026 by Sidney Wallace

So Far So Good
Style: 1000W 4 Channel
The amp so far is making my speakers πŸ”Š work nice and loud and hard. Boss been around forever and the brand is good. No complaints on my end and the price was good . I would recommend
Reviewed in the United States on July 19, 2024 by Johnny

Not a bad little amp for the price
Style: 1000W 4 Channel
I have this amp on four 6 1/2" Pyle PLMR6kb mid-range one boss cxx8 8" sub in sealed box head unit is jvc kd-x37mbs it runs four 5" noams all in my sxs sounds great. Couldn't imagine this set up in a small truck or car. I recommend these products all from Amazon Thanks guys
Reviewed in the United States on April 5, 2022 by casey jones

Great amp!
Style: 1000W 4 Channel
I bought this because I was not happy with my new JVC stereo- it did not have the power my old JVC did. Come to find out the old JVC's have a great pre-amp that the new ones lack. I still have old JVC as I still go back and forth about switching it out- only thing that stops me is new has a usb port in front that I use all the time. I bought the amp to power 4 speakers in my 02 Chevy Silverado 1500 ext cab. I have it powering four Pyramid 250 watt (each) speakers- 2 are 5x8's and 2 are 6x9's. It does a great job of boosting the midrange and highs. I went from having to turn my stereo to 16 to get a decent sound level for driving to only turning it to 3 to get the same level now. I have another Boss amp (1200 watt) hooked to my subwoofer. I will say the subwoofer control is not going to boost your sub...it will actually cut power to it. It is nice if you have someone in the vehicle that hates a lot of bass, but other than that I leave it unplugged. What some people do not realize is you have to match watts for watts. If you are trying to run 1000 watt amp to power a 800 watt sub- you will not be happy. It will get hot unless you limit the output. I had that issue when changing to a lower watt sub, the amp would get hot and turn off (I thought it was the sub turning off). I had the audio shop make some changes and now all runs cool and the music is great- OK except to the old people who can't stand the thumps and loud music coming from my truck :) ... show more
Reviewed in the United States on September 26, 2013 by Willow

Works good, but went out after 3 weeks of use
Style: 1000W 4 Channel
Amp works good and sounds good, but quit working after 3 weeks of use. Installation was perfect, just decided to quit working. Only reason I’m giving 3 stars is because they’re replacing it for free. Overall, good value for the price compared to other brands.
Reviewed in the United States on June 15, 2022 by Luke Porter

3 of these in a row fried themselves, Goodbye Boss
Style: 1000W 4 Channel
EDIT 1: Only three days after installing, the unit is stuck in protection mode. Good Connections, no fuses blown, it's not the speakers and my other boss amp for the sub works fine. waiting the return and get another. If it works I will change my review back to a positive one, If it's defective too then goodbye Boss! EDIT 2: Returned the amp, got the replacement, sounds great. The rest of the story: I got my second amp which worked for about a week and fried itself along with blowing 2 of my speakers. OK, so I tried upgrading to the 1200 Watt version and it did the same thing. Got my connections checked by a professional and the amp is just plain cooking. Maybe it just gets too hot in my trunk, but thats no excuse and I have a mono block right next to it that operates just fine. Getting really tired of returning and installing amps, do yourself a favor and STAY AWAY FROM BOSS ... show more
Reviewed in the United States on August 1, 2014 by Josiah Duncan

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Style: 1000W 4 Channel
Excelente
Reviewed in the United States on March 3, 2026 by Manuel Muino

The best feature this amp has in my opinion is the ...
Style: 1000W 4 Channel
I have only been running this amp for about two weeks, but it has performed up to expectations. I'm using it to power four 4-ohm Alpine SPS-6000 (Type-E) speakers which have an RMS of 60w each. It's all I need, even too much, for this purpose. The best feature this amp has in my opinion is the built-in crossover. Prior to this amp, I had a really, really cheap amp with no high pass filter of any kind, but now that I can keep any bass notes from going to my speakers, they are much clearer. Overall a good amp -- you get what you pay for. For mid-range interior speakers, it works well. ... show more
Reviewed in the United States on November 10, 2015 by Yevgeniy
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