

🎵 Unleash bold sound, compact style — your car’s new audio powerhouse!
The IR400.4 is a compact 4-channel car amplifier delivering up to 400W RMS at 2 ohms, designed for high-fidelity sound with reinforced power supply and precise crossover controls. Its sleek design and efficient performance make it perfect for upgrading your car audio system with powerful bass and crystal-clear highs.




| ASIN | B0757VFW72 |
| Best Sellers Rank | #69,367 in Electronics ( See Top 100 in Electronics ) #39 in Car Multichannel Amplifiers |
| Item model number | IR400.4 |
| Manufacturer | Stetsom |
| Product Dimensions | 5 x 75.01 x 5 cm; 0.59 g |
A**.
Works Well!!!
Amazing! delivered right on schedule!
S**S
Great
V. Good
T**O
Boa qualidade
F**O
Muy buen producto y exelente respuesta con sus 400 watts y sobre todo muy compacto
R**D
This little amp is really powerful for its size
M**O
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!
A**R
Tiny but holds a punch. Great for my tweeters
Trustpilot
2 months ago
1 week ago