https://audioxpress.com/article/you-can ... c-speakers
This article details a lifetime project from audioXpress' technical editor Jan Didden. After a successful restoration project of a pair of precious ESL-63 Quad electrostatic speakers, he opted to design and build the eDD, a well-performing high voltage amplifier to directly drive electrostatic speakers. This challenging but successful DIY project with a design goal of 1500V RMS at 20mA RMS over the full audio band, took a while to complete, because of the required drive signals, the demanding high voltage power supplies, and circuits for the different amplifier stages, including a tube output stage design. In the end, the project was a success, and this article shares every step of the construction. This article was originally published in audioXpress, December 2023.
Zeker als je ook de technieken begrijpt! Bedankt voor het delen.