There are also the Sonore products, and the OpticalRendu is technically within budget, though that doesn't appear to include the cost of power supply. And you'll want a good one of those. But, as a longtime owner of an UltraRendu, I suspect OpticalRendu would be quite a lot higher sound quality than the Cambridge CXN. Frankly, given the calibre of the rest of your system, $1500 seems a bit skimpy, and would probably make the streamer the weak link in your system. But maybe not if you had an OpticalRendu with a quality power supply (probably another $600-700 there, though - Audiophilestyle guys seem like they really like PS's from Farad, Paul Hynes, Uptone Audio, and others).