No opinion on JS-1. However, I heard JD-1 with Levinson 30.5. If I had the money, I would have bought it there and then. It is one of the greatest transports I've heard. However, I believe it is not in production anymore (in case it matters for you).
Opinions on Jadis JS 1 Tube Dac and Jadis Transpor
Hi, has anyone ever heard the Jadis JD-1 Transport and the JS1 DAC, or the Dac on another transport or CD Player. Its about 7 years old. But i heard this is one of the best sounding Dacs and Transport. The JS 1 Dac was a tube dac and it had a seperate power supply that weighed 60 pounds. I think Jerry Ozment from Audio Logic designed the Dac.