No-tuning 2.1/5.1 high-power STK thick-film audiophile amp board – DIY multi-channel finished, heavy bass ready

Sanyo STK is commonly known as Sanyo Thick Film. Under the control of the tuned sound and high-precision semiconductor process production process, it is not the 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 for big brand audio manufacturers. In the early days, many famous factories used them to manufacture power amplifiers, such as K + H, Sony Sony, Panasonic PANSONIC, KENWOOD, JEVIS JVC, Shanshui SANSUI, Sharp SHARP, Pioneer PIONEER, Aihua AIWA, etc. Almost all Japanese audio manufacturers use them, and they have been used for more than 20 years, which has influenced a whole generation. It is also a sound with a strong era brand that our entire generation heard when they were young. It always sounds unforgettable. Sanyo, a company specializing in the production of power amplifier modules, was later acquired by ON Semiconductor of the United States. After the acquisition, it integrated Sanyo's traditional craftsmanship, coupled with ON's unique design, and the later products were even more outstanding. They are still used by large companies in the United States, such as BOSE and Genelec in Europe!  

The power amplifier module STK433-270 produced by Sanyo SANYO in the later stage is said to be the product of ON Semiconductor's acquisition of Sanyo's production line. It incorporates ON Semiconductor's design and process. The appearance of the products produced at that stage has changed the tradition of the original black ugly shell of Sanyo, becoming exquisite and meticulous, and the internal workmanship has also been greatly improved. Objectively, it far surpasses the old Sanyo in terms of hearing. It is a pity that only a few of the products at that time can still be seen today. At that time, with the vigorous development of the Internet and the large-scale popularization of various portable devices (especially large-screen touch-screen mobile phones), many people gradually forgot about these high-performance desktop devices. Those former well-known audio manufacturers had to change their product direction, making these customized products dusty in the original SANYO packaging factory warehouse in the Philippines for more than ten years.

After getting the test found that this module still has a relatively large potential, the actual power 60WX3@6 Ω, the recommended working voltage plus or minus 46V, the maximum working voltage should not exceed plus or minus 50V.

    DIY is very simple, the whole board has been tested, no need to debug; DIY, upgrading and modifying speakers are all good choices.

This model module is three-channel 60W, and the default full-frequency output signal. When used as a subwoofer, the bass channel needs to be

Connect the low-pass signal input.

Power supply voltage: AC dual 28-35V,

Output power: 3X60W@6 Ω

Size: 137 * 85mm

Accessories: Copper pillar nut * 4, screw * 2, three-core shielded cable * 1

    Note: The filter capacitor defaults to 50V withstand voltage, and the capacitor needs to be replaced if it is higher than 50V power supply.

The finished board is tested and shipped without heat dissipation, and an additional radiator needs to be added.

This product is not artificially damaged and is guaranteed for 3 months.

Note: All product pictures, videos, text and other related descriptions are made by a certain period and are for reference only. If there is any change without notice, the specifics are mainly based on the receipt of the actual product.

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STK443-090 This model module is three-channel 80W, and the default full-frequency output signal. When used as a subwoofer, the bass channel needs to beConnect the low pass signal input.

Power supply voltage: AC dual 24-36V

Frequency response: 20Hz-50kHz

Output power: 3X80W@4 Ω 3X66W@8 Ω

Size: 169 * 85mm

Weight: 0.28kg

Accessories: Copper column nut * 4, screw * 2

The finished board is tested and shipped without heat dissipation. It needs to be used with an additional heat sink, and heat dissipation does not require insulation.

This product is not artificially damaged and is guaranteed for 3 months.

Note: All product pictures, videos, text and other related descriptions are made by a certain period and are for reference only. If there is any change without notice, the specifics are mainly based on the receipt of the actual product.

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STK4187 This model module is three-channel 100W, and the default full-frequency output signal. When used as a subwoofer, the bass channel needs to beConnect the low pass signal input.

Power supply voltage: AC dual 25-35V

Frequency response: 15Hz-18kHz

Output power: 3X100W@4 Ω 3X66W@8 Ω

Size: 175 * 83mm

Accessories: Copper pillar nut * 4, screw * 2, three-core shielded cable * 1

The finished board is tested and shipped without heat dissipation. It needs to be used with an additional heat sink, and heat dissipation does not require insulation.

This product is not artificially damaged and is guaranteed for 3 months.

Note: All product pictures, videos, text and other related descriptions are made by a certain period and are for reference only. If there is any change without notice, the specifics are mainly based on the receipt of the actual product.

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  DIY is very simple, the whole board has been tested, no debugging required; DIY, upgrading and modifying 5.1-channel speakers are all good choices.

This model module has 5 channels of 30W.

Power supply voltage: AC dual 15-28V

Output power: 36W@4 Ω 28W@8 Ω

THD + N (Harmonic Distortion + Noise) 0.05%

Size: 175 * 103mm

Accessories: Copper column nut * 4, screw * 2

    Note: The filter capacitor defaults to 40V withstand voltage, and the AC power supply is higher than 23V power supply, and the capacitor needs to be replaced.

The finished board is tested and shipped without heat dissipation. It needs to be used with an additional heat sink. The module design is placed at the bottom of the circuit board, and the installation method is horizontal installation.

This product is not artificially damaged and is guaranteed for 3 months.

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This product is installed and tested before delivery. The finished plate with the radiator as shown in the picture should not be enough for high power in actual use. You can install the radiator according to your actual usage.

The main filter capacitor of this product is a second-hand disassembly machine in Japan. There is no kit provided on this board, and it will not be disassembled and sold.

This product is guaranteed to be in good hands, and it is not guaranteed if it is damaged by overpressure.

Power supply voltage: AC dual 28-35V,

Output power: 3X60W@6 Ω

Dimensions: Width 120 Height 70 Depth 170mm

Weight: 0.6KG

The finished board is guaranteed for 3 months.