The power circuit is an all-discrete power supply! A microphone amplifier that uses a circuit designed to control high-frequency noise.
The "HA-404 II" is a fully professional high-performance microphone amplifier with 4 inputs and 4 outputs. It uses Lundahl transformers for the input mic and our original three-layer wound transformers for the output, connected in a special way. Driven in Class A, it maintains a flat response from high to low frequencies, allowing for the reproduction of delicate sounds. Additionally, the power supply circuit is an all-discrete design that incorporates a circuit to control high-frequency noise, ensuring that no high resistance or capacitors are used from input to output. 【Features】 ■ Fully professional with 4 inputs and 4 outputs ■ A renewed type focused on sound quality while maintaining specifications and performance ■ Equipped with 48V phantom power, -20dB pad, and other necessary functions for microphone amplifiers *For more details, please refer to the PDF document or feel free to contact us.
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【Other Features】 - The input microphone transformer uses Lundahl, and the output transformer employs our original three-layer winding transformer with special connections. - The output transformer is driven by a transistor buffer amplifier on the IC output, allowing for A-class drive that reproduces flat and delicate sound from high to low frequencies. - Components include PP film capacitors and low-impedance electrolytic capacitors. - Metal foil resistors are used in areas that affect sound quality. - The power supply circuit is fully discrete and incorporates a circuit that controls high-frequency noise. - High resistance and capacitors are not used from input to output. *For more details, please refer to the PDF document or feel free to contact us.
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For more details, please refer to the PDF document or feel free to contact us.
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At JR Sound Co., Ltd., we design and manufacture audio products with complete professional specifications, catering to a wide range of needs from recording studios, broadcasting stations, PA systems, to hall sound equipment. We will continue to develop and release various audio products, video-related equipment, and audio measurement devices, so please feel free to contact us with any requests.