--- product_id: 269668732 title: "RP-75.4ABM 500 Watt Full-Range Class A/B 4-Channel Marine Amplifier" brand: "skar audio" price: "3611 kr" currency: DKK in_stock: true reviews_count: 5 category: "Skar Audio" url: https://www.desertcart.dk/products/269668732-rp-75-4abm-500-watt-full-range-class-a-b store_origin: DK region: Denmark --- # 500W RMS Power Output Waterproof Marine-Grade Build Fully Adjustable Sound Controls RP-75.4ABM 500 Watt Full-Range Class A/B 4-Channel Marine Amplifier **Brand:** skar audio **Price:** 3611 kr **Availability:** ✅ In Stock ## Summary > ⚓ Amplify your adventure with marine-grade power and precision! ## 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?** 3611 kr with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.dk](https://www.desertcart.dk/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 - • **Compact Yet Mighty:** Space-saving design fits tight marine spaces without compromising on power or performance. - • **Precision Sound Tuning:** User-adjustable gain, LPF, HPF, and bass EQ let you customize your audio experience effortlessly. - • **Rock-Solid Reliability:** 4-way protection circuitry guards against electrical faults, overheating, and low voltage for worry-free use. - • **Built to Brave the Elements:** Marine-grade waterproof coating and rust-proof casing ensure durability in the harshest conditions. - • **Power That Commands the Waves:** Delivers 125W x 4 channels at 2Ω for crystal-clear, room-filling sound on your boat. ## Overview The Skar Audio RP-75.4ABM is a 500-watt RMS, 4-channel Class A/B marine amplifier engineered for superior sound clarity and durability. Featuring a waterproof circuit board, rust-proof casing, and advanced MOSFET power supply, it delivers 125 watts per channel at 2 ohms with fully adjustable controls and comprehensive protection circuitry, making it the ultimate audio upgrade for any boat. ## 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: Excelente producto - Me gustó la calidad del producto, es la primera vez que utilizo está marca y obtuve un muy buen resultado, buenas respuesta, buena potencia, buena calidad de audio. 100% recomendado. Review: Nice anp ## 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 | | Antenna Location | For use on boats | | Audio Driver Type | Dynamic Driver | | Audio Output Mode | Surround | | Audio output mode | Surround | | Best Sellers Rank | #147,416 in Electronics ( See Top 100 in Electronics ) #17,695 in Car & Vehicle Electronics | | Brand | Skar Audio | | Built-In Media | Skar Audio RP-75.4ABM Marine 4-Channel Amplifier | | Compatible Devices | TV, Laptop, Smartphone, Tablet, Game Console | | Connectivity Technology | RCA, Power/Ground Input Terminals | | Connectivity technology | RCA , Power/Ground Input Terminals | | Control Method | Touch | | Customer Package Type | Standard Packaging | | Customer Reviews | 4.6 out of 5 stars 2,281 Reviews | | Enclosure Material | aluminum or marine-grade stainless steel | | Global Trade Identification Number | 00767408281706 | | Is Waterproof | true | | Item Type Name | Marine Amplifier | | Item Weight | 7.5 Pounds | | Manufacturer | Skar Audio | | Material | aluminum or marine-grade stainless steel | | Model Name | RP-75.4ABM | | Model Number | RP-75.4ABM | | Mounting Type | Surface Mount | | Mounting type | Surface Mount | | Number of Audio Channels | 4.0 | | Number of Items | 1 | | Power Source | Electrical Wire | | Speaker Maximum Output Power | 500 Watts | | Speaker Size | 19.05 Centimeters | | Speaker Type | Outdoor | | Speaker maximum output power | 500 Watts | | Specific Uses For Product | Navy | | UPC | 767408281706 | ## Product Details - **Audio output mode:** Stereo, Multi-channel - **Brand:** Skar Audio - **Material:** aluminum or marine-grade stainless steel - **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 ### ⭐⭐⭐⭐⭐ Excelente producto *by J***Z on 13 August 2023* Me gustó la calidad del producto, es la primera vez que utilizo está marca y obtuve un muy buen resultado, buenas respuesta, buena potencia, buena calidad de audio. 100% recomendado. ### ⭐⭐⭐⭐⭐ Nice anp *by A***W on 4 July 2025* ### ⭐⭐⭐⭐⭐ Pushes little more than rated *by M***H on 20 March 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.dk/products/269668732-rp-75-4abm-500-watt-full-range-class-a-b](https://www.desertcart.dk/products/269668732-rp-75-4abm-500-watt-full-range-class-a-b) --- *Product available on Desertcart Denmark* *Store origin: DK* *Last updated: 2026-04-23*