What's inside?
All PCBs

Amplifier:













Power supply:






Front panel & uP:



A few more info about this amplifier here: https://www.audiosciencereview.com/forum/index.php?threads/tpa-3255-450khz-output-freq.52153/
All PCBs

Amplifier:













Power supply:






Front panel & uP:



A few more info about this amplifier here: https://www.audiosciencereview.com/forum/index.php?threads/tpa-3255-450khz-output-freq.52153/