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NA-1500X4D1500W Max @ 4 Ohm Class D 4 Channel Car Amplifier RMS MAX @ 4Ohm: 4x100W 4x200W RMS MAX @ 2Ohm: 4x130W 4x260W Input Level 0. 2V 6V Frequency Response: 20Hz 20kHz LPF: 40Hz 180Hz Bass Boost Level: 0 15dB THD at 4 Ohm load 30% Rated Power: <0. 2% Signal to Noise Ratio: >80dB Best Effeciency: >85% Minimum Load: 2 Ohm Dimensions (LxWxH): 241 x 185 x 58mm
1500W Max @ 4-Ohm Class-D 4-Channel Car Amplifier
RMS / MAX @ 4Ohm: 4x100W / 4x200W
RMS / MAX @ 2Ohm: 4x130W / 4x260W
Input Level – 0.2V – 6V
Frequency Response: 20Hz – 20kHz
LPF: 40Hz – 180Hz
Bass Boost Level: 0-15dB
THD at 4 Ohm load 30% Rated Power: <0.2% Signal to Noise Ratio: >80dB
Best Effeciency: >85%
Minimum Load: 2 Ohm
Dimensions (LxWxH): 241 x 185 x 58mm
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4.5 ★★★★★
Based on 902 reviews
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Product Reviews
★★★★★ 5
Honestly, I never thought I would enjoy studying this much!
Format: Paperback, Format: Paperback
I was so grateful for this book's excellence that I opened the Amazon website during my break to write a review.
I wanted to brush up on my skills before taking my first Python class in the fall, so I was looking for a beginner's book I could study on my own over the summer. Since I had no coding experience, I needed a book that explained even the smallest details step-by-step. I've been studying with the goal of completing two chapters a week since August. I'm currently on Chapter 8, and it's been so much fun! Honestly, I never thought I would enjoy studying this much.
I spent two days on practice problem 8-8 (though I spent most of the time lying on the couch screaming, "Why can't I do this?" than actually solving the problem). However, after some time, I reconsidered and re-tested the problem, and today, on the third day, I finally figured out what the issue was! I resisted the urge to ask AI or look at the GitHub code the author had posted. Instead, I solely relied on the book to solve the problem. The information in the book was more than enough. I'm proud of myself!
If you're a beginner like me and just starting out with Python, I highly recommend this book! It seems unlikely I'll be able to finish all the remaining chapters and projects before the fall semester, but I'd like to take the time over the weekend to finish this book if possible. I have no doubt that the detailed, helpful explanations and systematic practice problems will help me solidify my fundamental Python coding skills.
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Reviewed in the United States on August 29, 2025
★★★★★ 5
Awesome book
Format: Paperback
The best guide for anyone who want to learn python efficiently and quickly
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Reviewed in the United States on April 28, 2026
★★★★★ 5
Must have for programmers
Format: Paperback
It's a simple, easy-to-use guide for learning Python programming.
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Reviewed in the United States on March 4, 2026
★★★★★ 5
Very informative and easy to understand
Format: Paperback
I love how Charles wrote this book, I read it slowly throughout the year and was easily able to digest all the examples and illustrations provided and have got a better and broader understanding of Code, software, hardware, batteries, lightbulbs, history and much more!
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Reviewed in the United States on May 4, 2026
★★★★★ 5
Great Place to Start
Format: Paperback
Clear and entertaining
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Reviewed in the United States on February 17, 2026