• Engineered for audio purists, this two channel power amp provides reference audio quality and is neatly enclosed in a striking metal case..
• 80 Watts of pure, clean power per channel will fill even the largest rooms with engaging, immersive sound. Jointly developed with the world renowned Swiss audio specialist, Goldmund; this amp features many technical innovations including, among others, a pioneering star-grounding design and a dual mono topology which has been employed throughout to minimize crosstalk. The robust power supply begins with the oversized, hand-wound, torroidal transformer with separate taps for the left and right channels and continues with twin rectifiers and separate PSU’s all the way through to the output stages.
I am the second owner, and the amp is in excellent condition. The only flaw I could find is a tiny nick on the top back case (see photo). Comes with original box/packing, AC cord, and little ‘getting started’ card. Asking $280 plus shipping.
See the review in The Absolute Sound:
https://www.theabsolutesound.com/articles/optoma-nuforce-sta200-power-amplifier/ 
