I am always thinking ahead. What would I get if I were to up-grade? Right now I have the Ayre attached to a pair of Vandersteen 2 CE Signature III's, I like what I hear, but at times they seem a bit bright. With no chance to add a sub, I just resign myself to this is how it is, which understand, is still pretty damn good. If I were to upgrade, I might go with an Integrated Tube Amp, or Pre Amp, Power Amp, setup. Again, just idle thoughts for now....