FWIW, I preferred the YBA Passion Integre over both. Beat the 383 with ease. The Concentra II is a killer integrated. I liked the sweetness of the Passion. BTW, Absolute Sound reviewed the Passion Integre, this month. It's a dead on review from my experience, so I'll hold the ubiquitous adjectives. You can read for yourself. Significantly less $$ that the Concentra, as well. Hey, you got a high class problem, here, choosing one of these integrateds. peace, warren