This machine has a fever amplifier with Sanyo thick film STK443 as the output core, which performs very well in terms of voice, power, and details. It can be paired with bookshelves or floor speakers to achieve excellent performance and experience. The appearance is made of all aluminum alloy structure, with dual display screens, excellent dynamic sense, and high cost-effectiveness。
About Sanyo Semiconductor (a member company of Anson Semiconductor)
Sanyo Semiconductor Co., Ltd. (a member company of Anson Semiconductor) is a semiconductor manufacturing company with excellent power device technology, such as small package technology, high-efficiency switch technology, high-density packaging technology, as well as world YI current simulation technology. Several simulation related assets include extensive process technology, simulation design technology, skilled simulation engineers, and specially designed and manufactured excellent energy-saving and environmentally friendly devices, such as hybrid integrated circuits for inverters. The core components of Sanyo Semiconductor include discrete circuits, general-purpose analog large-scale integrated circuits, ASSPs, and hybrid integrated circuits, which are widely used in various products such as personal computers, printers, cable TV, mobile phones, audio-visual equipment, gaming devices, car audio systems, and air conditioners.
Sanyo STK is commonly known as Sanyo thick film. Under the control of calibrated sound and high-precision semiconductor process production, it is not a level that ordinary amateur DIY players can achieve. In addition to better sound field and resolution, the low-frequency intensity is much stronger, which is completely the difference between professional athletes and ordinary players! These thick film circuits have always been customized products specifically for big brand audio manufacturers. Many famous factories in the early days used them to manufacture power amplifiers, such as K+H, Sony SONY, Panasonic PANSONIC, Kenwood KENWOOD, Jewesi JVC, Shanshui SANSUI, Sharp SHARP, Pioneer PIO NEER, Aihua AIWA, and almost all Japanese audio manufacturers chose them, and they have been used for more than 20 years, influencing a whole generation and being the sound with a strong era imprint that we heard when we were young. It always sounds unforgettable. Sanyo, a company specializing in the production of amplifier modules, was later acquired by ON Semico Conductor in the United States. After the acquisition, Sanyo's traditional craftsmanship was integrated, and ON's unique design made the later products even more outstanding. They are still adopted by large companies in the United States, such as BOSE and Genelec in Europe!
I was fortunate to come across the early SANYO amplifier module STK443, which has a batch of brand new inventory. It is the most powerful model in this series. The early product design was conventional, using the tuning style of the electronic tube era. This module has a field effect transistor input amplifier circuit, and the sound is warm and delicate, with a unique flavor. Design output power of 25W+25W @ 8 ohms, distortion THD 0.3%. This thick film chip was only specially customized for SONY products at that time, so it was relatively difficult to see on the market.
This device is designed primarily for listening to music on home computers, while also being a portable device with Bluetooth functionality for easy use. The whole machine shell is made of CNC all aluminum alloy, and the retro designed warm light dual head adds a touch of atmosphere to music listening. The overall appearance of the machine is exquisite and compact, making it convenient for placing on a computer desktop. In actual comparison and trial listening, if high-power output is not required, the sound of this machine has a stronger listening experience than FM300A!
Basic performance parameters:
Working mode: Class AB
Static current: 60mA
Output power：25W+25W/8 Ω, distortion 0.3%, frequency response: 20Hz to 50KHz
Dynamic range:>100dB
Overall dimensions: 260 * 82 * 193MM
Weight: 4.1KG
