--- product_id: 240902398 title: "Skar Audio RP-75.4ABM 4-Channel Full-Range 500 Watt RMS Class A/B Marine Amplifier" brand: "skar audio" price: "R$6371" currency: BRL in_stock: true reviews_count: 5 category: "Skar Audio" url: https://www.desertcart.com.br/products/240902398-skar-audio-rp-75-4abm-4-channel-full-range-500 store_origin: BR region: Brazil --- # 500W RMS Power Output Waterproof Marine-Grade Coating User Adjustable Gain & EQ Controls Skar Audio RP-75.4ABM 4-Channel Full-Range 500 Watt RMS Class A/B Marine Amplifier **Brand:** skar audio **Price:** R$6371 **Availability:** ✅ In Stock ## Summary > 🌊 Amplify Your Adventure with Skar’s Marine Powerhouse! ## Quick Answers - **What is this?** Skar Audio RP-75.4ABM 4-Channel Full-Range 500 Watt RMS Class A/B Marine Amplifier by skar audio - **How much does it cost?** R$6371 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.com.br](https://www.desertcart.com.br/products/240902398-skar-audio-rp-75-4abm-4-channel-full-range-500) ## 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 - • **Seamless Power Flow:** Equipped with 4 and 8 gauge power & ground terminals for maximum current delivery and minimal signal loss. - • **Rock-Solid Reliability:** 4-way protection circuitry ensures your amp stays safe in any marine environment. - • **Precision Sound Sculpting:** Customizable gain, LPF, HPF, and bass EQ switches let you tailor your audio experience. - • **Built to Brave the Elements:** Fully marinized with waterproof circuit boards and rust-proof casing for ultimate durability. - • **Power That Commands the Waves:** Delivers a robust 125W x 4 channels at 2Ω for crystal-clear marine sound. ## Overview The Skar Audio RP-75.4ABM is a 4-channel Class A/B marine amplifier delivering 500 watts RMS power, engineered with waterproof coatings and rust-proof materials to withstand harsh marine environments. It features user-adjustable gain and EQ controls, advanced protection circuitry, and heavy-gauge power terminals to ensure powerful, clear, and reliable sound on the water. ## Description Skar Audio RP-75.4ABM 4-Channel Full-Range 500 Watt RMS Class A/B Marine Amplifier : desertcart.in: Electronics 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 Review: Incredible upgrade. - When my boat speakers blew I searched for great speakers. I settled on Skar’s SK 65 Ms which sounded much better than what I had. But I knew they had a lot more to deliver than I could get from my head unit. I ordered a Skar Audio RP-75 and a wiring kit. WOW! The volume is great but the clarity is unbelievable! Highly recommended. My only beef is with the amp wiring kit. They only provided one RCA cable for a 4 channel set up. It slowed me down but didn’t stop me! ## 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 | #68,744 in Musical Instruments ( See Top 100 in Musical Instruments ) #514 in Power-Amplifiers | | Box Contents | Skar Audio RP-75.4ABM Marine 4-Channel Amplifier | | Brand Name | Skar Audio | | Customer Reviews | 4.6 out of 5 stars 396 Reviews | | Item Type Name | Marine Amplifier | | Item Weight Unit of Measure | 7.5 Pounds | | Manufacturer | Skar Audio | | Manufacturer Part Number | RP-75.4ABM | | Model Number | RP-75.4ABM | | Number of Items | 1 | | Unit Count | 1 Count | ## Product Details - **Audio Output Mode:** Surround - **Brand:** Skar Audio - **Connectivity Technology:** Wired - **Mounting Type:** Surface mount - **Speaker Maximum Output Power:** 500 Watts ## Images ![Skar Audio RP-75.4ABM 4-Channel Full-Range 500 Watt RMS Class A/B Marine Amplifier - Image 1](https://m.media-amazon.com/images/I/51G-ePWHHLL.jpg) ![Skar Audio RP-75.4ABM 4-Channel Full-Range 500 Watt RMS Class A/B Marine Amplifier - Image 2](https://m.media-amazon.com/images/I/51pNgThicEL.jpg) ![Skar Audio RP-75.4ABM 4-Channel Full-Range 500 Watt RMS Class A/B Marine Amplifier - Image 3](https://m.media-amazon.com/images/I/61dfpys0CQL.jpg) ![Skar Audio RP-75.4ABM 4-Channel Full-Range 500 Watt RMS Class A/B Marine Amplifier - Image 4](https://m.media-amazon.com/images/I/61bYm2v8YnL.jpg) ![Skar Audio RP-75.4ABM 4-Channel Full-Range 500 Watt RMS Class A/B Marine Amplifier - Image 5](https://m.media-amazon.com/images/I/711NKQal88L.jpg) ## Available Options This product comes in different **Size** options. ## Customer Reviews ### ⭐⭐⭐⭐⭐ 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 ### ⭐⭐⭐⭐⭐ Incredible upgrade. *by R***D on 10 July 2026* When my boat speakers blew I searched for great speakers. I settled on Skar’s SK 65 Ms which sounded much better than what I had. But I knew they had a lot more to deliver than I could get from my head unit. I ordered a Skar Audio RP-75 and a wiring kit. WOW! The volume is great but the clarity is unbelievable! Highly recommended. My only beef is with the amp wiring kit. They only provided one RCA cable for a 4 channel set up. It slowed me down but didn’t stop me! ### ⭐⭐⭐⭐⭐ Great amp! Pushes 4 6.5’s no problem *by C***N on 24 May 2026* Sounds great. Have it running 4 skar 6.5’s and sounds loud and clean ## 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.com.br/products/240902398-skar-audio-rp-75-4abm-4-channel-full-range-500](https://www.desertcart.com.br/products/240902398-skar-audio-rp-75-4abm-4-channel-full-range-500) --- *Product available on Desertcart Brazil* *Store origin: BR* *Last updated: 2026-10-02*