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Stetsom

Stetsom IR 400.4 2 Ohms Compact Digital 4 Channels Amplifier, Iron LINE, 400 Watts RMS 400x4, 2Ω Stable, Multichannel Digital Car Audio Amp TS, Full-Range Sound Quality, Crossover

    • Based on 545 reviews
Condition: New
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$89.99 Why this price?

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Availability: In Stock.
Fulfilled by Brearthquake (we track serial #s)
Arrives Thursday, Apr 17
Order within 19 hours and 16 minutes
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Features

  • Channel: 4 channel
  • Input and Output Options: RCA input
  • Power Output: 400 Watts RMS car audio amplifier
  • Impedance Compatibility: 2 Ohm Stable, Full Range, Speakers & Subs
  • Equalization and Sound Control: Crossover, Sound Quality, L.P.F & H.P.F

Item dimensions L x W x H: 1.97 x 29.53 x 1.97 inches


Voltage: 15 Volts (DC)


Manufacturer: Stetsom


Maximum Supply Voltage: 15 Volts (DC)


Minimum Supply Voltage: 9 Volts


Is Discontinued By Manufacturer ‏ : ‎ No


Product Dimensions ‏ : ‎ 1.97 x 29.53 x 1.97 inches; 0.02 ounces


Item model number ‏ : ‎ IR400.4


Date First Available ‏ : ‎ September 19, 2017


Manufacturer ‏ : ‎ Stetsom


Best Sellers Rank: #39,831 in Electronics (See Top 100 in Electronics) #62 in Car Multichannel Amplifiers


#62 in Car Multichannel Amplifiers:


Customer Reviews: 4.5 4.5 out of 5 stars 545 ratings


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Thursday, Apr 17

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

  • Klarna Financing
  • Affirm Pay in 4
  • Affirm Financing
  • Afterpay Financing
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  • Financing through Apple Pay
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

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Top Amazon Reviews

🚀 Abunda's Overview

This is our summary and key points to consider based on customer reviews.

Most customers have given this amplifier high ratings, highly appreciating its performance and power for a compact size. Despite some minor installation challenges, users have praised the amp for providing quality sound amplification. The amp does require some careful settings adjustments to get the perfect sound, but customers acknowledge its excellent value for the price.

Pros

  • 🔊 Provides powerful sound output for its size
  • 🛠 Great for enhancing sound from average car speakers
  • 💰 Excellent value for money
  • 👌 Compact and easy to install for those with audio experience

Cons

  • ⚖ The balance between power and ground terminals may be delicate
  • 🎚 Requires careful setting adjustments to get optimal sound
  • 🚗 One user observed some car noise interference

Should I Buy It?

If you have some experience with car audio installations, and are looking to enhance your car's sound without breaking the bank, this amp seems to be a fantastic choice. It's a compact size with powerful output, providing great value for the price. Be prepared for some setting adjustments to achieve the best sound quality.

    • Great product do the cost!
This amp is awesome for powering my high pass speakers. Just enough power to sound better than simply running components from my head unit. If you have experience in installation of car audio, this amp will be a breeze. My only complaint is that the terminals for power and ground are directly beside one another(unlike most amps, In which, the remote is usually in the center) This being said, I could see how easily one could fry this amp if they aren’t careful. This is a company from Brazil, but they do have a hq in Florida for tech support in the states. Great amp for about half the cost of most brands. I will post updates on how it performs over time. Great job Stemsom!!!! One month later and I figured out how to make this little guy go hard! These Brazilian amplifiers love the voltage from the rca cables to be on the higher side for voltage, so I put my signal through a clarion equalizer first to juice up the voltage, and let me tell you! Louder and richer than before. I don’t care if this amp fries, I have already got my money worth! ... show more
Reviewed in the United States on February 19, 2023 by Mike Rebello
    • Simply wow
After 1 yr in the frunk of my can am spyder i will say best audio mod on my trike. So small that doesnt take the limited precious space of the frunk.
Reviewed in the United States on July 30, 2024 by Mandy T.
    • Powerful, but!
Nice and loud, but had lots of motor noise
Reviewed in the United States on June 9, 2024 by William
    • Great product
Great product still standing after 3 years on my motorcycle it’s great for a 2 set of 6”s or 8”s
Reviewed in the United States on January 17, 2025 by sharod coleman
    • It does the job, but I noticed some distortion at a level that I wouldn't have expected.
I purchased this unit for front and rear speakers. They are four and a half inch coaxial in front, and 6 1/2-in coaxial in the rear. There is a significant volume increase, but more importantly, it has made the speakers come alive. It is more than I would have expected. My only concern is that I noticed that I start to get Distortion that is not related to the driver break up, but more so the amplifier. My take on this is that if you want to drive your gear to excessive levels, you may want to get a larger 4 channel amplifier. Let me know that this is at 75% and higher on the volume slider (very loud). Other than that instance, this is a great little unit. ... show more
Reviewed in the United States on December 28, 2023 by Kelso
    • Nice little amp
Review Image by P Baez P Baez
Sound quiality is awesome! It;s so small that you can hide it anywhere. Looks strongly built. Easy to install.
Reviewed in the United States on April 2, 2025 by P Baez P Baez
    • Su potencia
Muy potente de verdad no esperaba tanto de este producto
Reviewed in the United States on March 17, 2025 by Daniel Enrique
    • Stopped working after 18 months. When working it was just OK
I purchased this amplifier due to its compact size and rated power output. It worked OK for my needs but did notices a hissing sounds when power was applied to the amplifier which was not present on an older full size amplifier. Sound quality was OK. My car receiver is a 80PRS from Pioneer and the pre-outs have a great signal so I did not notice anything negative about the output of the amplifier. Abruptly the amplifier died after hearing a very odd sound that sent a signal back to my stereo receiver and was visible on the graphic equalizer. I removed the amplifier after this because there was no output to my speakers. I tested the output signal from the stereo receiver and there was 3+ VAC with a sine wave output from my phone, yet no output on the speaker out ports of the amplifier. Fuse was not blown. I am out of warranty period but after contacting support they said they can repair the amplifier if I send it in. Not sure if they will charge me for the repair, but I do have to pay for shipping both ways. May update review if I decide to ship it in for repair. For now I am using a very old full size amplifier 10"x18" power acoustik 4ch amplifier and there is no hiss when the amp is on and no audio is being played and the reproduction of sound is very clean compared to the Stetsom. Although the amp is very compact, it does come with drawbacks as the sounds quality is OK. If you are looking for clean/high quality sound, this is NOT the amp for you. ... show more
Reviewed in the United States on January 17, 2025 by Marcos Amezcua

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