NS-01 is a small yet performant headphone amplifier. I created it because I wanted to see how small could a high-quality headphone amplifier be, while using only standard parts in packages that are...Read More…
NS-01 is a small yet performant headphone amplifier.
I created it because I wanted to see how small could a high-quality headphone amplifier be, while using only standard parts in packages that are relatively easy to assemble by hand (meaning nothing smaller than a 0805 resistor).
It's designed to produce 7 volts RMS and 90 mA while being only 454510 mm. Current output is actually limited by the power supply capability, but 1 watt into headphones is generally already too much, so I didn't see it a problem.
One of the guiding principles was to overengineer everything so that the active components aren't run near their limits, since doing so generally increases distortion.
Each board comes included with full schematic.
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Jeffrey | Dec. 1, 2020
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