ARCO Marine Zeus A8000-48V 8kW Vortec Alternator w/Isolated Ground [4609]
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![Roswell R1 Pro Tower Speakers - White - 200W RMS 400W Peak Power [C920-1910W]](https://cdn.shopify.com/s/files/1/2785/3654/files/100968XL.jpg?v=1741802852)
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Description
Roswell R1 Pro Tower Speakers - White - 200W RMS 400W Peak Power [C920-1910W]R1 Pro Tower Speakers White 200W RMS & 400W Peak Power Discover a new age of audio with the revolutionary, patented Roswell R1 Pro Tower Speakers. Featuring the worlds first RGB LED light permeable speaker housing, this award winning innovation consumes your senses with unmatched acoustic clarity in a place where imagination meets sound. The R1 Pro is a mission accomplished in developing the flagship of the R1 Audio line to introduce an entirely new
R1 Pro Tower Speakers - White - 200W RMS & 400W Peak Power
Discover a new age of audio with the revolutionary, patented Roswell R1 Pro Tower Speakers. Featuring the world’s first RGB LED light-permeable speaker housing, this award-winning innovation consumes your senses with unmatched acoustic clarity in a place where imagination meets sound. The R1 Pro is a mission accomplished in developing the flagship of the R1 Audio line to introduce an entirely new listening experience on the water.
Features:
- Klippel® tested and certified to guarantee acoustic performance
- R1 Pro 8" woofer
- Side-mounted 1" compression tweeter with integrated protection circuit
- Deutsch wiring harness included for water-tight connection
- Machined billet Roswell 360º 3" Universal Clamp with 1.90", 2.375" and 3" adapters
- The integrated RGB LED backlit grille helps to create your desired visual atmosphere Extreme saltwater and UV resistance
Specifications:
- Color: White
- Continuous Power (RMS): 200 Watts
- Peak Power (RMS): 400 Watts
- Sensitivity: 8" Woofer: 95 dB @ 1W/1M / 1" Compression Tweeter: 103 dB @ 1W/1M
- Frequency Response (+ / - 3 dB): 60Hz - 20kHz
- Impedance Ω: 4Ω
Dimensions:
- Diameter: Speaker: 8 in. I 20.32 cm / Tweeter: 1 in. | 2.54 cm
- Total Width: 15.48 in. I 39.32 cm
- Total Depth: 13.35 in. 33.91 cm
- Hanging Distance (from center to lowest point): 12.25 in. I 31.12 cm
*Sold as a Pair
Specifications:
- LED Lighting: Yes
- QTY: Pair
- Watts Max: 400w
- Watts RMS: 200w
- Box Dimensions: 16"H x 22"W x 22"L WT: 33.85 lbs
- UPC: 810152720318
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4.8 ★★★★★
Based on 16 reviews
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Product Reviews
★★★★★ 5
Compelling, informative, and accurate
Format: Kindle
I really could not be happier with the pace and level of detail this book provides. I am a very surface-level Linux user and I wanted to dive in head first. I often find that when I learn about something that I consider really hard or intimidating in tech, I get better at day-to-day use of the tools and my confidence grows. This book is a real confidence-booster if you crave the knowledge of how things work under the hood.
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Reviewed in the United States on October 8, 2024
★★★★★ 5
Great book to read
Format: Paperback, Format: Paperback
Great book to keep you updated about upstream Linux
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Reviewed in the United States on March 18, 2024
★★★★★ 5
A Hands-On and Deep Guide to Linux Kernel Programming
Format: Paperback
Linux Kernel Programming, Second Edition is a very practical and well-structured book for anyone who wants to understand how the Linux kernel works. It focuses on both theory and real hands-on learning. The book uses a clear style and explains complex topics in a simple way. It is designed to help readers build real skills, not just read concepts. It is especially useful for developers who want to work closer to the operating system.
One of the most interesting parts of the book is the strong introduction to kernel programming. It explains how to set up a development environment, build the Linux kernel from source, and write the first kernel module. This section gives readers a solid starting point and builds confidence early in the learning process. It also explains why loadable kernel modules are widely used in real-world projects.
Another highlight is the deep coverage of kernel internals. The book explains core concepts such as kernel architecture, processes, threads, and the difference between user mode and kernel mode. These ideas are often hard to understand, but the book presents them in a clear and structured way. This helps readers see how the operating system really works under the surface.
The memory management section is especially strong and detailed. The book spends several chapters explaining how memory is allocated and managed inside the kernel. It also explains advanced topics such as page allocation, memory reclaim, and the out-of-memory system. These chapters are very useful for understanding performance and stability in real systems.
Another very interesting section is the coverage of CPU scheduling. The book explains how the Linux kernel decides which task runs at a given time. It introduces scheduling policies, priorities, and modern features like control groups. The explanations are practical and supported by examples, which makes the topic easier to follow.
The chapters on kernel synchronization are also a major highlight. They explain concepts such as locks, atomic operations, and deadlock prevention. These topics are critical for writing safe and reliable kernel code. The book also shows real examples and common mistakes, which helps readers avoid problems in their own work.
Another strength of the book is its hands-on approach. It includes many kernel modules, scripts, and examples that readers can try themselves. This makes learning more engaging and helps turn theory into real skills. The focus on practical work makes the book stand out from more theoretical resources.
Overall, this book is a great choice for developers, system programmers, and engineers who want to understand the Linux kernel in depth. It starts with the basics and moves into advanced topics in a smooth way. The combination of clear explanations and practical examples makes it a strong and valuable learning resource.
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Reviewed in the United States on April 16, 2026
★★★★★ 4
Poor quality binding
Format: Paperback, Format: Paperback
Binding glue fell apart in less than a week and the pages fell out. Content is great though and I have a shiny new kernel based on Kali. 4 stars despite the binding because the content is top tier if you love all things Linux 🤌
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Reviewed in the United States on July 4, 2025
★★★★★ 5
An Essential Guide for Mastering Linux Kernel Development
Format: Paperback, Format: Paperback
Linux Kernel Programming - Second Edition: A Comprehensive and Practical Guide to Kernel Internals, Writing Modules, and Kernel Synchronization is an outstanding resource for anyone eager to understand the inner workings of the Linux kernel. Whether you're a beginner looking to get started or an experienced developer aiming to deepen your knowledge, this book delivers a well-structured and hands-on approach to kernel programming.
The book starts with the fundamentals—setting up a kernel development environment, understanding kernel release nomenclature, and compiling the 6.x Linux kernel from source. As you progress, it dives into advanced topics such as kernel configuration, writing and debugging loadable kernel modules (LKMs), kernel synchronization mechanisms, memory management, CPU scheduling, and much more. Each chapter builds on practical examples, ensuring that readers not only understand the theory but also learn how to apply it in real-world scenarios.
One of the book's biggest strengths is its focus on practical application. From exploring the kernel build process and bootloader configurations to working with Git for kernel development and troubleshooting system crashes using debugging tools, the book provides step-by-step guidance. The coverage of kernel synchronization techniques—including spinlocks, mutexes, and RCU—makes it an invaluable reference for those dealing with concurrent programming in the kernel space.
Whether you're an aspiring kernel developer, a DevOps engineer, or a systems programmer, this book is a must-have. The clear explanations, well-structured content, and hands-on exercises make it a perfect companion for anyone wanting to go from a beginner to an expert in Linux kernel programming.
Highly recommended for anyone serious about understanding and working with the Linux kernel!
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Reviewed in the United States on January 29, 2025