Mimberman, the Calypso is a good example of what I was talking about. From the balanced outputs, the output impedance is 112 ohms at mid-high frequencies, but rises to 3,900 ohms at 20hz. From single ended outputs, impedance ranges from 2,400 ohms at mid-high frequences to 3,150 at 20hz. Aesthetix will tell you the roll-off is not noticable for most practical purposes, but I did not like the sound of the Calypso driving my McCormack DNA500 which has input impedance of 10K ohms, and I found it to sound somewhat thin compared to the VTL 5.5 and Atma MP-3 (fully loaded). Maybe it was the set-up, or maybe I just like a more harmonically rich presentation, even if it does deviate from "neutral."
