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20 years after the launch of our very first Class D amplifier, we would like to thank the DIY community for always being very loyal to us. Their support played a very important role in the success of our company. We therefore thought it was the right choice to be the first to let them try out this new technology exclusively!

The Nilai500DIY comes with a discrete buffer stage and voltage regulators, just like the NC400 it will replace. Together with carefully selected high-quality components, the Nilai500DIY is our best amplifier yet. In addition to the amplifier, we designed a new matching power supply. The PS500DIY includes a PFC and standby power supply. As with the Nilai500DIY, we selected high-quality components for optimal performance.


DIYclassd PS500DIY and Nilai® 500DIY


  • 500W / 4 ohm
  • THD+N: 0,00015% (-116dB) @ 100W / 4 Ohm / 20 – 20.000 Hz
  • Output noise: 9,5µV @ 11,8dB gain
  • Gain adjust in 3 steps (11,8 - 21,8 - 27,8)
  • High fidelity components
  • Discrete buffer stage and regulators
  • Dedicated high-end power supply
  • Available in mono & stereo kits
  • 100 x 100 x 40mm and 355g

In memoriam

Jan-Peter van Amerongen

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