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V4_70/120W amplifier
### DESCRIPTION 70W/8ohm, 120W/4ohm high quality power amplifier. Frequency range 2Hz-270kHz. Distortion 0.0002%, at 60W/8ohm. More than 20 was build in the last 2 years.
### TECHNICAL DETAILS / COMPONENTS Gain is 16 (24dB), input impedance 20kohms. Input stages are use KSC1845/KSA992 transistors. The output use 2SC3519/2SA1386, or NJW0281/NJW0302, or any other compatible. Resistors are DALE RN55/60/65, capacitors are Elna Silmic II. Power supply is +/-40V 200W/channel
### LEARN / TOPIC / BUILD INSTRUCTIONS Be careful, as there is no protection against overload, or short circuit. I was removed them to get better sound quality. This order use 2oz copper, however the amplifier works with 1oz too. If you need more information just drop me a message: sajti@hotmail.com
V4_70/120W amplifier
Project images are for reference only. Actual production is based on the manufacturing files on the project page.
Please review the designer's notes (e.g., PCB thickness) and select the appropriate options.
PCBWay is not responsible
for issues caused by unsuitable parameter selections.
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