Search  for anything...
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 423 reviews
Condition: New
Checking for product changes
$85.00 Why this price?
Save $4.99 was $89.99

Buy Now, Pay Later

As low as $14.17 / mo
  • – 6-month term
  • – No impact on credit
  • – Instant approval decision
  • – Secure and straightforward checkout

Ready to go? Add this product to your cart and select a plan during checkout. Payment plans are offered through our trusted finance partners Klarna, PayTomorrow, Apple Pay, and PayPal. No-credit-needed leasing options through Acima may also be available at checkout.

Learn more about financing & leasing here.

Free shipping on this product

This item is eligible for return within 30 days of receipt

To qualify for a full refund, items must be returned in their original, unused condition. If an item is returned in a used, damaged, or materially different state, you may be granted a partial refund.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

Availability: Only 1 left in stock, order soon!
Fulfilled by Amazon
Arrives May 14 – May 16
Order within 11 hours and 1 minute
Available payment plans shown during checkout

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 LxWxH: 1.97 x 29.53 x 1.97 inches


Voltage: 13.8 Volts


Manufacturer: Stetsom


Mounting Type: Surface Mount


Brand: Stetsom


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: #31,788 in Electronics (See Top 100 in Electronics) #46 in Car Multichannel Amplifiers


#46 in Car Multichannel Amplifiers:


Customer Reviews: 4.5 4.5 out of 5 stars 423 ratings


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: May 14 – May 16

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

Learn more about financing & leasing here.

Similar Products

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.

    • Impressive lil guy
I am very impressed with the power of this lil amplifier, I wire 4 ohms set up to 4 Rockford fosgate speakers, clean sound and powerful.
Reviewed in the United States on December 29, 2023 by augustine gonzales
    • 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
    • Amp
Great quality small size
Reviewed in the United States on February 2, 2024 by Amazon Customer
    • Its loud
Wow, I mean this amp is freaking loud. I like the crossover and it is perfect for me. If you are installing aftermarket radios and is not loud enough, than get this amp and install it for your factory car speakers. It will give you that loudness that aftermarket radios lack.
Reviewed in the United States on July 23, 2023 by Ingrid C Arias
    • Perfect for tight spaces
After reading several reviews I went with the Stetsom for its size, consistent power output and east of inatallation
Reviewed in the United States on November 25, 2023 by Aug Ryda
    • Small but powerful
Works well in my 2023 Taco. Easy to install where there isn’t much room. Highly recommend.
Reviewed in the United States on November 15, 2023 by Raeton808
    • It's my fault...(DISTORTION BOX)
If you're an audiophile and quality sound is a must, after installing anything aftermarket ensure you thoroughly go through all your settings through your deck, amplifiers and e.q.; I had a very tinny and almost hall sound coming through initially after install, had to adjust gain down (10%), and adjusted bandwidth & center channel midrange (for each bass, mid and treble frequency) which does take time. Ensure you go through all your genres that have major difference in sound production, playing classical to ensure you hear each instrument, then songs with heavy bass and so on. I like certain tracks for testing, Simply Red's "Jericho" is a great example but there are tons of tracks that are suitable. If you take the time, you'll enjoy your ride anywhere you go. If you just want to hear bass a few blocks away, you shouldn't have ears. Having said all that, the sound QUALITY is crap. Not 1 review on here talking about sound quality. Just a bunch of kids that are happy to get loud, distorted music. Amp runs extremely hot even at low volumes and I'm now (after 2 weeks) getting a loud popping noise randomly. Tinny sound, hall echo, basically everything you don't want in an amp. Swapping out for another just to give Stetsom a chance but this is 2/2 for #1 the first bass amp (fans kick on and off very quickly on first bass amp, it died) and now #2 this p.o.s. I'm positive I'll be getting an Alpine amplifier to match the quality I already have going in the truck. PROFESSIONALLY installed system; 4ohm front & rear high fidelity speakers (all 3-way), 15" Skar VFX in a sealed box mounted in a blow-though. Big 3, all running double 00, 350A alternator (low rpm) with battery bank set up. 150A and 30A breakers. The list goes on. Brazilian just doesn't cut it for real audiophiles, maybe for bass & loud distortion. Disappointed. Update: 2nd amp is identical to the first, of course. I was hoping to have received a lemon the first go-around. You don't need to spend 3k like on my home receiver but remember, you get what you pay for most of the time. Thanks for reading. ... show more
Reviewed in the United States on August 16, 2023 by LOCOmotivRICO
    • Stetsom 400.4
Impresionante el poder de este mini amplificador, no se calienta ni se dispara, lo recomiendo al 100%
Reviewed in the United States on October 24, 2023 by Eric zerpa

Can't find a product?

Find it on Amazon first, then paste the link below.