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Posted by Abot13
 - September 11, 2025, 12:28:46
This should be made available worldwide asap. Great idea, want one to build with my kids (watching 😂)
Posted by Redaktion
 - September 09, 2025, 05:01:28
The Onkyo TRHPA-KIT01 DIY headphone amplifier kit, available in Japan for ¥44,000 (~$300), features patented ultra-low distortion tech and modular components for audio hobbyists. The kit will be offered made-to-order through October 3, 2025.

https://www.notebookcheck.net/Onkyo-unveils-a-DIY-headphone-amplifier-kit-for-hobbyists.1109029.0.html