--- product_id: 72940905 title: "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" brand: "stetsom" price: "£6.51" currency: GBP in_stock: true reviews_count: 13 url: https://www.desertcart.co.uk/products/72940905-stetsom-ir-400-4-2-ohms-compact-digital-4-channels store_origin: GB region: United Kingdom --- # 2Ω Stability 400W RMS Power 4 Channel Output 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 **Brand:** stetsom **Price:** £6.51 **Availability:** ✅ In Stock ## Summary > 🎶 Elevate Your Drive with Stetsom's Sonic Power! ## Quick Answers - **What is this?** 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 by stetsom - **How much does it cost?** £6.51 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.co.uk](https://www.desertcart.co.uk/products/72940905-stetsom-ir-400-4-2-ohms-compact-digital-4-channels) ## Best For - stetsom enthusiasts ## Why This Product - Trusted stetsom brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Built to Last:** Sturdy surface mount design ensures durability and reliability on every journey. - • **Unleash the Power:** Experience a booming 400 Watts RMS that transforms your car audio into a concert-like experience. - • **Precision Sound Control:** Tailor your audio with advanced crossover settings for both low and high frequencies. - • **Versatile Compatibility:** Designed for full-range speakers and subs, ensuring every note is crystal clear. - • **Compact Design, Big Impact:** At just 1.97 inches high, this amplifier fits seamlessly into any vehicle without compromising on performance. ## Overview The Stetsom IR 400.4 is a compact digital 4-channel amplifier delivering 400 Watts RMS at 2Ω stability. With RCA input options and advanced sound control features, it ensures high-quality audio for both speakers and subs, making it the perfect upgrade for any car audio system. ## Description Buy 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: Multichannel Amplifiers - desertcart.com ✓ FREE DELIVERY possible on eligible purchases Review: 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! Review: Nice little amp - Sound quiality is awesome! It;s so small that you can hide it anywhere. Looks strongly built. Easy to install. ## 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 ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B0757VFW72 | | Best Sellers Rank | #172,265 in Electronics ( See Top 100 in Electronics ) #436 in Car Multichannel Amplifiers | | Brand Name | Stetsom | | Customer Reviews | 4.5 4.5 out of 5 stars (586) | | Global Trade Identification Number | 00607939047399 | | Included Components | amplifier | | Item Dimensions | 1.97 x 29.53 x 1.97 inches | | Item Weight | 0.59 Grams | | Manufacturer | Stetsom | | Material Type | Aluminum | | Maximum Supply Voltage | 15 Volts (DC) | | Minimum Supply Voltage | 9 Volts | | Model | IR400.4 | | Mounting Type | Surface Mount | | Number of Channels | 4 | | Operating Temperature | 55 Degrees Celsius | | Output Power | 400 Watts | | Package Type Name | retail box | | Specification Met | FCC | | Supply Current | 33.5 Amps | | UPC | 607939047399 | | Voltage | 13.8 Volts | ## Product Details - **Item dimensions L x W x H:** 1.97 x 29.53 x 1.97 inches - **Manufacturer:** Stetsom - **Maximum Supply Voltage:** 15 Volts (DC) - **Minimum Supply Voltage:** 9 Volts - **Voltage:** 13.8 Volts ## Images ![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 - Image 1](https://m.media-amazon.com/images/I/61q9j1AGr8L.jpg) ![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 - Image 2](https://m.media-amazon.com/images/I/616nLIh8QbL.jpg) ![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 - Image 3](https://m.media-amazon.com/images/I/61qfXvOFWqL.jpg) ![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 - Image 4](https://m.media-amazon.com/images/I/61y6TSWeMxL.jpg) ![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 - Image 5](https://m.media-amazon.com/images/I/619w+6uyqGL.jpg) ## Questions & Answers **Q: Cuántos rms maneja?** A: 100 watts por canal y suena muy bien **Q: What brand of 2-6×9 speakers would be good for this amp in a motorcycle fairing andget good sound at high speed?** A: Any quality 2ohm 6x9 it can be bridged to 2 channel and it packs serious punch! Or if you gonna use it 4 channel I’d make sure o got 2 ohm speakers unless u know how to wire 4 ohm speakers parallel to make them 2 ohm! I run these on my Harley Boss 500watt Bluetooth marine receiver running mephis 4 inch handlebar speakers with 2 ds18 high compression tweeters front and rear with 400.4 bridges with ds18 6.5 with 2 bullet tweeters wired parallel and a 400.1 on ds18 exl 6.5 sub with passive radiator it’s stupid loud!! **Q: What is the maximum wire size AWG it can take for power and speakers ?** A: True 12 guage works fine!! **Q: Hello, will this amp move a pair of rs1-216 and a pair of rk1-116 well?** A: Yes ## Customer Reviews ### ⭐⭐⭐⭐⭐ Great product do the cost! *by M***O on February 19, 2023* 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! ### ⭐⭐⭐⭐⭐ Nice little amp *by P***Z on April 2, 2025* Sound quiality is awesome! It;s so small that you can hide it anywhere. Looks strongly built. Easy to install. ### ⭐⭐⭐⭐⭐ Review *by R***L on December 28, 2025* Muy buena calidad buen sonido ya tengo varios años y todavia funciona perfectamente ## Frequently Bought Together - 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 - Stetsom IR 400.1 2 Ohms Compact Digital Mono Amplifier, Iron LINE, 400 Watts RMS 400x1, 2Ω Stable, Monoblock Digital Car Audio Amp TS, Full-Range Sound Quality, Crossover - BOSS Audio Systems KIT2 8 Gauge Complete Car Amplifier Installation Wiring Kit with Power Cables, Ground Cables, Turn-On Wire, Speaker Wire, Terminals --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.co.uk/products/72940905-stetsom-ir-400-4-2-ohms-compact-digital-4-channels](https://www.desertcart.co.uk/products/72940905-stetsom-ir-400-4-2-ohms-compact-digital-4-channels) --- *Product available on Desertcart United Kingdom* *Store origin: GB* *Last updated: 2026-05-14*