--- product_id: 269668732 title: "RP-75.4ABM 500 Watt Full-Range Class A/B 4-Channel Marine Amplifier" brand: "skar audio" price: "€ 433.65" currency: EUR in_stock: true reviews_count: 5 category: "Skar Audio" url: https://www.desertcart.be/products/269668732-rp-75-4abm-500-watt-full-range-class-a-b store_origin: BE region: Belgium --- # 500W RMS Power Output Waterproof & Rustproof Marine Grade 4-Way Protection Circuitry RP-75.4ABM 500 Watt Full-Range Class A/B 4-Channel Marine Amplifier **Brand:** skar audio **Price:** € 433.65 **Availability:** ✅ In Stock ## Summary > 🌊 Power Your Marine Adventures with Unmatched Clarity & Durability ## Quick Answers - **What is this?** RP-75.4ABM 500 Watt Full-Range Class A/B 4-Channel Marine Amplifier by skar audio - **How much does it cost?** € 433.65 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.be](https://www.desertcart.be/products/269668732-rp-75-4abm-500-watt-full-range-class-a-b) ## 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 - • **Built to Brave the Elements:** Waterproof coating and rustproof casing ensure relentless durability in harsh marine environments. - • **Compact Design, Maximum Impact:** Fits seamlessly into tight boat spaces without compromising on power or performance. - • **Unleash 500 Watts of Pure Marine Power:** 125W x 4 channels at 2Ω delivers immersive sound clarity on every wave. - • **Precision Sound Control at Your Fingertips:** User-adjustable gain, LPF, HPF, and bass EQ let you tailor your audio experience perfectly. - • **Rock-Solid Reliability with 4-Way Protection:** Safeguards against overheating, electrical shorts, and low voltage for worry-free cruising. ## Overview The Skar Audio RP-75.4ABM is a 500-watt RMS, 4-channel Class A/B marine amplifier engineered for superior sound performance and durability. Featuring 125 watts per channel at 2 ohms, advanced MOSFET power supply, and a marine-grade waterproof and rustproof design, it delivers crystal-clear audio even in the harshest marine conditions. With user-adjustable controls and comprehensive 4-way protection circuitry, this compact amplifier offers both power and peace of mind for boat audio enthusiasts. ## Description Scar Audio engineered the RP-75. 4ABM marine amplifier to set a new standard in marine grade amplifier performance. This four-channel marine amplifier is 2-ohm stable and utilizes a wide array premium internal components, such as its high speed MOSFET power supply as well as an advanced marine grade PCB board layout. Conservatively rated at 500 watts RMS power (125 watts x 4 channels), this amplifier will bring the speakers on your boat to life with unrivaled power output and sound clarity. The RP-75. 4ABM is extremely versatile as well with its compact physical design, which allows it to fit in a variety of tight or small locations on your boat. Also present on one side of the amplifier is a built-in user control panel that is fully adjustable - allowing you to dial in your sound exactly how you want it. Featuring adjustable controls for gain, high pass filter, low pass filter, a crossover switch, and more, you'll have full control over your listening experience. In addition to all the above features, this model also features four-way protection circuitry, which will give the user the peace of mind knowing they are protected against damage to the amplifier for various reasons - including electrical shortage, overheating, low voltage, and more. Our marine amplifiers feature a special marine coating internally that allow them to withstand the harshest conditions for long lasting use. Review: Solid amp for boat Review: Potencia y claridad - A simple vista se nota la buena calidad de el amplificador, ya instalado y empezar a calibrar me hizo sonar muy fuerte un set de medios de 3 vías de hertz de 100 whats RMS anteriormente usaba un sound magus pk 700.4 clase d de 100 RMS por canal y creo notar escucharlo más fuerte este Skar aun así siendo de clase A/B que se enfocan más en calidad que en potencia, volvería a comprar amplificadores Skar Audio que si dan potencia real y hasta más de la que muestran en sus especificaciones ## Features - 500-Watt MOSFET 4-Channel Class A/B Power Marine Amplifier - RMS Power at 2 Ohms: 125 Watts x 4 Channels - RMS Power at 4 Ohms: 75 Watts x 4 Channel - Fully Marini zed with Waterproof Coating on Circuit Board & Rust Proof Painting on Mechanical Case - User Adjustable Controls: n, Variable LPF, HPF, Bass EQ Switch (0, +6, +12 dB).Featuring 4-Way Protection Circuitry and 4 Gauge Power & Ground Input Termils for Maximum Current Flow.Sigl to Noise Ratio: 105 dB, 8 Gauge Power and Ground Input Terminals ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B07481HH74 | | Best Sellers Rank | #174,751 in Electronics ( See Top 100 in Electronics ) #21,662 in Car & Vehicle Electronics | | Brand | Skar Audio | | Built-In Media | Skar Audio RP-75.4ABM Marine 4-Channel Amplifier | | Customer Reviews | 4.6 out of 5 stars 378 Reviews | | Item Type Name | Marine Amplifier | | Item Weight | 3.4 kg | | Manufacturer | Skar Audio | | Mfr Part Number | RP-75.4ABM | | Model Number | RP-75.4ABM | | Unit Count | 1 Count | ## Product Details - **Audio output mode:** Surround - **Brand:** Skar Audio - **Connectivity technology:** RCA, Power/Ground Input Terminals - **Mounting type:** Surface Mount - **Speaker maximum output power:** 500 Watts ## Images ![RP-75.4ABM 500 Watt Full-Range Class A/B 4-Channel Marine Amplifier - Image 1](https://m.media-amazon.com/images/I/51G-ePWHHLL.jpg) ## Available Options This product comes in different **Size** options. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Solid amp for boat *by B***S on 22 March 2026* ### ⭐⭐⭐⭐⭐ Potencia y claridad *by R***O on 8 April 2024* A simple vista se nota la buena calidad de el amplificador, ya instalado y empezar a calibrar me hizo sonar muy fuerte un set de medios de 3 vías de hertz de 100 whats RMS anteriormente usaba un sound magus pk 700.4 clase d de 100 RMS por canal y creo notar escucharlo más fuerte este Skar aun así siendo de clase A/B que se enfocan más en calidad que en potencia, volvería a comprar amplificadores Skar Audio que si dan potencia real y hasta más de la que muestran en sus especificaciones ### ⭐⭐⭐⭐⭐ True power with quality sound *by N***N on 7 July 2025* ## Frequently Bought Together - Skar Audio RP-75.4ABM 500 Watt Full-Range Class A/B 4-Channel Marine Amplifier - Skar Audio SK65M 6.5" 2-Way Marine Full Range 320 Watt Coaxial Speakers, Pair (White) --- ## 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.be/products/269668732-rp-75-4abm-500-watt-full-range-class-a-b](https://www.desertcart.be/products/269668732-rp-75-4abm-500-watt-full-range-class-a-b) --- *Product available on Desertcart Belgium* *Store origin: BE* *Last updated: 2026-07-23*