--- product_id: 263003920 title: "Skar Audio RP-75.4ABM 500 Watt Full-Range Class A/B 4-Channel Marine Amplifier" brand: "skar audio" price: "₨229711" currency: LKR in_stock: true reviews_count: 5 url: https://www.desertcart.lk/products/263003920-skar-audio-rp-75-4abm-500-watt-full-range-class store_origin: LK region: Sri Lanka --- # 500W RMS Power Output Waterproof Marine-Grade Coating Fully Adjustable Sound Controls Skar Audio RP-75.4ABM 500 Watt Full-Range Class A/B 4-Channel Marine Amplifier **Brand:** skar audio **Price:** ₨229711 **Availability:** ✅ In Stock ## Summary > ⚓ Amplify your adventure with marine-grade power and precision! ## Quick Answers - **What is this?** Skar Audio RP-75.4ABM 500 Watt Full-Range Class A/B 4-Channel Marine Amplifier by skar audio - **How much does it cost?** ₨229711 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.lk](https://www.desertcart.lk/products/263003920-skar-audio-rp-75-4abm-500-watt-full-range-class) ## 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 snugly in tight marine spaces without compromising 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 125 watts per channel at 2 ohms, waterproof circuit board coating, rust-proof casing, and fully adjustable controls, it delivers powerful, customizable audio performance designed to withstand the toughest marine environments. ## 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. ## 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: Gain, Variable LPF, HPF, Bass EQ Switch (0, +6, +12 dB) - Featuring 4-Way Protection Circuitry and 4 Gauge Power & Ground Input Terminals for Maximum Current Flow - Signal to Noise Ratio: 105 dB, 8 Gauge Power and Ground Input Terminals ## Technical Specifications | Specification | Value | |---------------|-------| | Asin | B07481HH74 | | Best Sellers Rank | 212,870 in Electronics & Photo (See Top 100 in Electronics & Photo) 63 in Car Audio & Video Mono Amplifiers | | Box Contents | Skar Audio RP-75.4ABM Marine 4-Channel Amplifier | | Brand Name | Skar Audio | | Customer Reviews | 4.6 4.6 out of 5 stars (384) 4.6 out of 5 stars | | Item Type Name | Marine Amplifier | | Item Weight | 7.5 Pounds | | Manufacturer | Skar Audio | | Manufacturer Part Number | RP-75.4ABM | | Model Number | RP-75.4ABM | | Unit Count | 1.0 count | ## Product Details - **Audio output mode:** 4-Channel - **Brand:** Skar Audio - **Compatible devices:** Smartphone, Tablet, Television - **Connectivity technology:** Wired - **Material:** aluminum or marine-grade stainless steel - **Model name:** RP-75.4ABM - **Mounting type:** Surface Mount - **Recommended uses for product:** For Boats - **Speaker maximum output power:** 500 Watts - **Speaker type:** Outdoor ## Images ![Skar Audio 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) ![Skar Audio RP-75.4ABM 500 Watt Full-Range Class A/B 4-Channel Marine Amplifier - Image 2](https://m.media-amazon.com/images/I/51pNgThicEL.jpg) ![Skar Audio RP-75.4ABM 500 Watt Full-Range Class A/B 4-Channel Marine Amplifier - Image 3](https://m.media-amazon.com/images/I/61dfpys0CQL.jpg) ![Skar Audio RP-75.4ABM 500 Watt Full-Range Class A/B 4-Channel Marine Amplifier - Image 4](https://m.media-amazon.com/images/I/61bYm2v8YnL.jpg) ![Skar Audio RP-75.4ABM 500 Watt Full-Range Class A/B 4-Channel Marine Amplifier - Image 5](https://m.media-amazon.com/images/I/711NKQal88L.jpg) ## Available Options This product comes in different **Size Name** options. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Solid amp for boat *by on Reviewed in the United States 22 March 2026* Strong, clean power and built for the water. Handles multiple speakers easily with no distortion. Solid construction and great sound output. Excellent marine amp. ### ⭐⭐⭐⭐⭐ Potencia y claridad *by on Reviewed in Mexico 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 ### ⭐⭐⭐⭐⭐ Turn up the gain! *by on Reviewed in the United States 17 May 2026* Great amp. Heavy duty and high quality. The screw terminals are all generous and strong. When I first hooked it up, I was disappointed in the output but immediately realized that the gain adjustment was turned way down. Not sure why they chose to send it that way, but when I turned it up the amp ROCKS! ## 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.lk/products/263003920-skar-audio-rp-75-4abm-500-watt-full-range-class](https://www.desertcart.lk/products/263003920-skar-audio-rp-75-4abm-500-watt-full-range-class) --- *Product available on Desertcart Sri Lanka* *Store origin: LK* *Last updated: 2026-07-05*