Special note: This product is a finished product of mono power amplifier, and no kit is provided temporarily.
About Sanyo Semiconductor (a member company of ON Semiconductor)
Sanyo Semiconductor Co., Ltd. (a member company of ON Semiconductor) is a semiconductor manufacturing company with excellent power device technology, such as small packaging technology, high energy efficiency switching technology, high density packaging technology, and the world's YI flow simulation technology. Several simulation-related assets include a wide range of 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 devices of Sanyo Semiconductor include discrete circuits, general-purpose analog large-scale integrated circuits, ASSP and hybrid integrated circuits, which are widely used in various products such as personal computers, printers, cable TV, mobile phones, audio-visual equipment, game equipment, car audio Systems and air conditioning.
Sanyo STK is commonly known as Sanyo Thick Film. Under the control of the adjusted sound and high-precision semiconductor process production process, it is not a level that ordinary amateur DIY players can achieve. In addition to better sound field and resolution, the low frequency strength is much stronger, which is the difference between professional athletes and ordinary players These thick-film circuits are always customized products for large-scale audio manufacturers. Many well-known factories in the early days used them to make power amplifiers, such as K + H, Sony SONY, Panasonic PANSONIC, Kenwood KENWOOD, JV JVC, Shanshui SANSUI, Sharp SHARP, Pioneer PIONEER, Aiwa AIWA, etc. Almost all Japanese audio It has been selected by manufacturers and has been in use for more than two decades. It has influenced a whole generation. It is also the sound with strong brand of the times that we have heard from a whole generation when we were young. It is unforgettable every time it sounds. Sanyo's company specializing in the production of power amplifier modules was later acquired by ON Semiconductor of the United States. After the acquisition, the integration of Sanyo's traditional processes, coupled with ON's unique design, the later products are more outstanding, and they are still used by large American companies. , Such as BOSE, such as the European Genelec
Fortunately, I have encountered a batch of brand-new stock Sanyo SANYO's later power amplifier module STK404-120. This series has many product models, from STK404-050-140. Among them, STK404-120 is a relatively powerful one. This series of products are produced in a relatively late period, using a typical classic circuit, the circuit is relatively simple, and the package is compact. Sound expression is good. The designed output power is 80W+80W @6 ohm, and the distortion degree is THD 0.4%. Promoting general bookshelves or floor speakers can achieve satisfactory results. This thick film chip was only supplied to manufacturers who made complete machines, so it is difficult to see on the market.
This board is designed according to a relatively feverish concept. The materials are carefully selected. The power amplifier module can be installed horizontally or vertically. It is easier to implement multi-channel functions with a suitable radiator. (The filter capacitor of this board is a second-hand disassembled product, the specification is 63V7000UF, and the size is 35X35mm. There are not many filter capacitors of this size)
Sound performance: The overall timbre is warm, the sound is relatively soft, the treble extension is high but not harsh, the bass dives deep enough and the elasticity is very good, no mixing and no muddy. Sanyo Thick Film is a kind of circuit between integrated and discrete power amplifiers. The fine workmanship and excellent craftsmanship are stronger than 3886 and 7294, and it is difficult for general DIY players to reach this level.
Power supply voltage: AC dual 29-45V
Output power: 80W@6Ω
Circuit board size: 72 wide X45 high X125 long (without thick film chip)/156 (with horizontally mounted thick film chip)