--- product_id: 254582125 title: "A U D I O Compact Full-Range Rms Mosfet 4 Channel Car Amplifier (SK-M4004D,400W)" brand: "skar audio" price: "€ 413.90" currency: EUR in_stock: true reviews_count: 5 category: "Skar Audio" url: https://www.desertcart.at/products/254582125-a-u-d-i-o-compact-full-range-rms-mosfet store_origin: AT region: Austria --- # 400W max power output Ultra compact 20.1x11.8x4.2 cm Adjustable crossover controls A U D I O Compact Full-Range Rms Mosfet 4 Channel Car Amplifier (SK-M4004D,400W) **Brand:** skar audio **Price:** € 413.90 **Availability:** βœ… In Stock ## Summary > πŸš— Amp up your drive with compact power that commands attention! ## Quick Answers - **What is this?** A U D I O Compact Full-Range Rms Mosfet 4 Channel Car Amplifier (SK-M4004D,400W) by skar audio - **How much does it cost?** € 413.90 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.at](https://www.desertcart.at/products/254582125-a-u-d-i-o-compact-full-range-rms-mosfet) ## Best For - skar audio enthusiasts ## Why This Product - Trusted skar audio brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - β€’ **Space-Savvy Design:** Ultra-compact footprint fits seamlessly into tight car interiors without sacrificing power. - β€’ **Reliable MOSFET Tech:** High-speed MOSFET power supply ensures stable, efficient performance under pressure. - β€’ **Power Meets Precision:** Delivers 140W RMS x 4 channels at 2Ξ© for crystal-clear, room-filling sound. - β€’ **Tailored Audio Control:** Customizable HPF, LPF, and full-range crossover settings for perfect sound tuning. - β€’ **Effortless Installation:** High-level inputs and adapter harness simplify setup even without RCA connections. ## Overview The Skar Audio SK-M4004D is a compact, full-range Class D 4-channel car amplifier delivering up to 400 watts of RMS power. Engineered with a high-speed MOSFET power supply and adjustable crossover controls, it offers versatile, high-quality sound in a space-saving design. Ideal for professional-grade car audio setups where power and installation flexibility are essential. ## Description The skar audio SK-M4004D full range class d four channel amplifier is part of the new mini amplifier series product lineup from skar audio. The sk-m4004d was engineered to be compact, but provide the power and reliability expected out of larger amplifiers. Featuring a high speed mosfet power supply, and an efficient class d design, this amplifier is powerful, reliable, and extremely versatile. The sk-m4004d makes for a great amplifier in applications where space is limited but power cannot be sacrificed. In addition, this four channel amplifier features high level input connections for those installations that lack an RCA connection. In addition to the high level inputs, this amplifier also utilizes an adapter harness for the speaker outputs allowing for an easier installation. Review: Awesome little amp. Very stable signal. Tuned with an oscilloscope to match my sub. Review: Good value, lots of power. make sure you mount this amp with a gap as the fan is located on the bottom. It worked a lot better for me once I gave it more room to breathe. It gets hot and will overheat if you do not do this ## Features - Ultra Compact MOSFET Full-Range 4-Channel Class D Car Amplifier - RMS Power at 2 Ohms: 140 Watts x 4 Channels (14.4v) - RMS Power at 4Ohms: 100 Watts x 4 Channels (14.4v) - Crossover Controls: HPF / Full-Range / LPF | Frequency Response: 10Hz - 40kHz ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B01EQX5ORK | | Brand Name | Skar Audio | | Customer Reviews | 4.2 4.2 out of 5 stars (1,460) | | Global Trade Identification Number | 00739189979165 | | Included Components | Skar Audio SK-M4004D Compact Full-Range Class D 4 Channel Amplifier | | Item Dimensions | 20.1 x 11.8 x 4.2 centimeters | | Item Type Name | Car Amplifier | | Item Weight | 3.74 Pounds | | Manufacturer | Skar Audio | | Material Type | Mosfet | | Maximum Supply Voltage | 14.4 Volts | | Minimum Supply Voltage | 14.4 Volts | | Model | SK-M4004D | | Mounting Type | Surface Mount | | Number of Channels | 4 | | Output Power | 400 Watts | | Specification Met | CE | | UPC | 739189979165 | | Unit Count | 1 Count | | Voltage | 14.4 Volts | ## Product Details - **Item dimensions L x W x H:** 20.1 x 11.8 x 4.2 centimeters - **Manufacturer:** Skar Audio - **Maximum supply voltage:** 14.4 Volts - **Minimum supply voltage:** 14.4 Volts - **Voltage:** 14.4 Volts ## Images ![A U D I O Compact Full-Range Rms Mosfet 4 Channel Car Amplifier (SK-M4004D,400W) - Image 1](https://m.media-amazon.com/images/I/61npvuKc0ML.jpg) ## Available Options This product comes in different **Size** options. ## Questions & Answers **Q: Can u run 8 speakers on this?** A: Yes you can. Two speakers per channel in parallel but make sure that the impedence of each speaker is 4 ohms or more because the minimum impedence that this amp can work in a stable condition is 2 ohms. Also keep in mind that each speaker will get around 100-115 watts. **Q: Can I use this amp to run my subs and tweets since it a four channel amp** A: I wouldn't recommend it **Q: I have ix 8 d2 sub, what amp should I get for it?** A: You can run a Skar RP 350.1 **Q: Can i hook up tweeters, two front 90w rms and two 45w rms speakers to this?** A: I have tweeters on mine with 2 6.5s running in HPF. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Review *by R***G on 18 December 2024* Awesome little amp. Very stable signal. Tuned with an oscilloscope to match my sub. ### ⭐⭐⭐⭐⭐ Review *by M***C on 7 October 2023* Good value, lots of power. make sure you mount this amp with a gap as the fan is located on the bottom. It worked a lot better for me once I gave it more room to breathe. It gets hot and will overheat if you do not do this ### ⭐⭐⭐⭐⭐ Review *by J***K on 2 February 2026* Pleasantly surprised with this amp. This amp replaces my old 4 channel amp and mono sub amp. It is running my 6x9 front door speakers and 6.5 rear door speakers along with a 10” pioneer subwoofer. This amp is a bargain for what it’s capable of doing. The sound is nice and the build quality looks great. I would buy this amp again. ## Frequently Bought Together - Skar Audio SK-M4004D Compact Full-Range Class D 4 Channel Car Amplifier, 400W - Skar Audio 4 Gauge OFC Complete Amplifier Installation Wiring Kit, SKAR4ANL-OFC - Skar Audio RP-1200.1D Monoblock Class D MOSFET Amplifier with Remote Subwoofer Level Control, 1200W --- ## Why Shop on Desertcart? - πŸ›’ **Trusted by 1.3+ Million Shoppers** β€” Serving international shoppers since 2016 - 🌍 **Shop Globally** β€” Access 737+ million products across 21 categories - πŸ’° **No Hidden Fees** β€” All customs, duties, and taxes included in the price - πŸ”„ **15-Day Free Returns** β€” Hassle-free returns (30 days for PRO members) - πŸ”’ **Secure Payments** β€” Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** β€” Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.at/products/254582125-a-u-d-i-o-compact-full-range-rms-mosfet](https://www.desertcart.at/products/254582125-a-u-d-i-o-compact-full-range-rms-mosfet) --- *Product available on Desertcart Austria* *Store origin: AT* *Last updated: 2026-04-22*