--- product_id: 85664543 title: "NX Audio Proton RX4000 Professional Live Sound Power Amplifier, Black, 2-Channel Audio System" brand: "nx audio" price: "€ 120.90" currency: EUR in_stock: false reviews_count: 5 url: https://www.desertcart.hr/products/85664543-nx-audio-proton-rx4000-professional-live-sound-power-amplifier-black store_origin: HR region: Croatia --- # 2-channel high-power output advanced cooling system thermal & peak protection NX Audio Proton RX4000 Professional Live Sound Power Amplifier, Black, 2-Channel Audio System **Brand:** nx audio **Price:** € 120.90 **Availability:** ❌ Out of Stock ## Summary > 🔊 Power your live sound like a pro — never miss a beat! ## Quick Answers - **What is this?** NX Audio Proton RX4000 Professional Live Sound Power Amplifier, Black, 2-Channel Audio System by nx audio - **How much does it cost?** € 120.90 with free shipping - **Is it available?** Currently out of stock - **Where can I buy it?** [www.desertcart.hr](https://www.desertcart.hr/products/85664543-nx-audio-proton-rx4000-professional-live-sound-power-amplifier-black) ## Best For - nx audio enthusiasts ## Why This Product - Trusted nx audio brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Cool Under Pressure:** Professional-grade ventilation keeps your amp running smooth all event long - • **Rock-Solid Reliability:** Built-in thermal and peak protection for uninterrupted, safe performance - • **Crystal-Clear Audio Output:** Delivers balanced, distortion-free sound even at max volume - • **Versatile Pro Connectivity:** Robust USB and SD inputs for seamless integration with your live setup - • **Dual-Channel Precision Control:** Independent level controls & LED indicators for flawless sound management ## Overview The NX Audio Proton RX4000 is a professional 2-channel power amplifier engineered for live sound applications. Featuring independent channel controls, advanced thermal and peak protection, and a high-efficiency cooling system, it ensures reliable, crystal-clear audio output for DJs, bands, and large venues. Its robust USB and SD connectivity make it a versatile choice for any professional audio setup. ## Description Product Description High-Power 2-Channel Performance The NX Audio Proton RX4000 Professional Power Amplifier is designed to deliver strong and consistent output through its 2-channel audio system . It provides ample power to drive professional speakers with ease, making it suitable for live sound reinforcement, DJ performances, stage shows, and large audio setups where reliable power delivery is essential. Versatile Application Use The RX4000 power amplifier is suitable for a wide range of audio applications including DJ setups, PA systems, live bands, auditoriums, and fixed sound installations . Its compatibility with mixers, speakers, and audio processors makes it a flexible and dependable choice for professional sound reinforcement needs. Clear & Stable Audio Output Built for high-quality sound reproduction, the RX4000 ensures clear, balanced audio with minimal distortion even at higher volume levels. The amplifier maintains signal accuracy and stability, allowing vocals, instruments, and music tracks to sound natural and powerful during extended performances or continuous use. Professional Build & Cooling Housed in a solid black metal chassis , the Proton RX4000 is built to withstand demanding professional environments. Its efficient ventilation and cooling system helps control internal temperature, ensuring dependable performance and longer operational life during long events, rehearsals, and installations. Review: Very good amplifier - Cristal clear Sound quality good for live & DJ Review: Original and copy difference - Copy product he ye. See original product design is different. Don't buy it product. Price also high this nx audio copy product ## Features - PROFESSIONAL AMPLIFIER: NX Audio Proton RX4000 is a high-performance 2-channel power amplifier designed for professional live sound applications - DUAL CHANNEL DESIGN: Features two independent channels with separate level controls and LED indicators for precise monitoring - PROTECTION FEATURES: Advanced protection circuitry includes thermal protection and peak indicators for safe operation - COOLING SYSTEM: Efficient heat dissipation through professional-grade ventilation design ensures stable performance during extended use - CONNECTIVITY: Professional-grade inputs and outputs with robust build quality for reliable sound reinforcement applications ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B015HB4NBS | | Audio Input | Usb, Sd Card | | Best Sellers Rank | #40,665 in Musical Instruments ( See Top 100 in Musical Instruments ) #331 in Power-Amplifiers | | Brand | Nx Audio | | Brand Name | Nx Audio | | Connectivity Technology | USB | | Customer Reviews | 4.0 out of 5 stars 6 Reviews | | Frequency | 20 Hz | | Item Dimensions D x W x H | 30D x 40W x 5H Centimeters | | Item Type Name | Digital Dj Controller | | Item Weight | 2.5 Kilograms | | Manufacturer | Nx Audio | | Manufacturer Part Number | RX4000 | | Model Number | Rx4000 | | Noise Level | 75 Decibels | | Number Of Channels | 2 | | Number of Channels | 2 | | Output Connector Type | Usb | | Packer Contact Information | Nex Audio Support | | Power Source | Ac/Dc | | Power Source Type | Ac/Dc | | Product Dimensions | 30D x 40W x 5H Centimeters | | Unit Count | 1 Piece | | Voltage | 12 Volts | | Warranty Description | 1 YEAR | ## Product Details - **Brand:** Nx Audio - **Number of Channels:** 2 - **Product Dimensions:** 30D x 40W x 5H Centimeters - **Item Weight:** 2.5 Kilograms - **Connectivity Technology:** USB ## Images ![NX Audio Proton RX4000 Professional Live Sound Power Amplifier, Black, 2-Channel Audio System - Image 1](https://m.media-amazon.com/images/I/51W185dSFiL.jpg) ![NX Audio Proton RX4000 Professional Live Sound Power Amplifier, Black, 2-Channel Audio System - Image 2](https://m.media-amazon.com/images/I/61hnTONURBL.jpg) ## Customer Reviews ### ⭐⭐⭐⭐⭐ Very good amplifier *by A***R on 8 January 2026* Cristal clear Sound quality good for live & DJ ### ⭐⭐ Original and copy difference *by V***K on 24 October 2023* Copy product he ye. See original product design is different. Don't buy it product. Price also high this nx audio copy product ### ⭐⭐⭐⭐ Audioton *by S***I on 21 March 2018* Hi sir am 1200watt 8oms 4speaker used to r 4000 --- ## 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.hr/products/85664543-nx-audio-proton-rx4000-professional-live-sound-power-amplifier-black](https://www.desertcart.hr/products/85664543-nx-audio-proton-rx4000-professional-live-sound-power-amplifier-black) --- *Product available on Desertcart Croatia* *Store origin: HR* *Last updated: 2026-07-12*