The "tech-detail-main" section features a product showcase with a detailed view of the main components. The image carousel includes three slides: one highlighting the STM32L151CCU6 single-chip microcontroller, another showing a high-current probe needle with a 3.0mm diameter and threaded design, and a third displaying an optocoupler. A thumbnail navigation bar allows users to scroll through the images easily.
In the world of audio equipment, the GRADO Goethe RA-1 headphone amplifier is well-known among audiophiles in the United States. However, its price tag of 3,000 yuan often discourages many potential buyers. Is such a simple design truly worth that much? In Western culture, there's a saying that "less is more," which translates to "simple is best." This philosophy has long been embraced by many top audio engineers in Europe and America, who believe that simplicity can lead to superior sound quality.
Goethe’s RA-1 is a perfect example of this idea. Its circuit design is extremely minimalistic, so much so that it could be described as "so simple it’s almost bare bones." This time, I’ll guide you through building a DIY version of the Goethe RA-1 headphone amplifier — a super-simple replica that uses just 13 components, including two 9V batteries. Whether you're an electronics enthusiast or a music lover looking for an affordable upgrade, this project is both fun and rewarding. Let’s dive into the details and bring this classic design to life.
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Dongguan Zhonghe Electronics Co., Ltd. , https://www.zhonghesleeving.com