"I have to respond to Tomcat."
Maiolica,
It seems I have to respond to Maiolica.
I could only audition the Omega II / 007 tube amp system with the source the Swiss-German Stax distributor provided at the recent "High-End" exhibit in Frankfurt. And I must admit, the CDP wasn't all that great. I guess it was something from Onkyo. Nothing to be impressed by.
But as far as tonal balance is concerned, CDPs seem to be rather similar. The very good ones will have more solid bass and less obtrusive treble, but tonal differences do not seem to be as big as with headphones (or speakers). And the utter lack of bass extension and slam is something that I have perceived every time I tried electrostatic headphones.
I don't know the Grado RS 1. They might be the smoothest and most forgiving headphone in the Grado line, but my favourite headphones might be even warmer and more forgiving: I like the new 250 Ohm versions of the Beyerdynamic DT 770 Pro (closed) and DT 990 Pro (open), in that order. From the descriptions of the Grados RS headphones, I'd infer that the Beyers reach deeper and have more impact. To my ears, the Beyers have more pronounced and natural bass than the Omega II from probably any source. And I would think this to be conventional wisdom: Dynamic speakers have an easier time handling bass than electrostatic ones. There just is no such thing as an electrostatic woofer.
I don't subscribe to the idea of "euphonic distortion" or "revealing components". If a new component sounds worse, my instincts would be to blame this component. For damaging the integrity of my musical signal in a way that has psychoacoustic relevance. I would say that the better component is the more neutral one, but at the same time, I would regard the more enjoyable and emotionally involving component as the more neutral one.
I think, musical homogenousness and its emotional effect are qualities to be lost in a system, not to be gained. The question is not what sonic quality to add with a new component but what kind of signal degradation to choose. I believe every component is degrading the signal and thus my musical enjoyment. That's why I don't understand how a better and more neutral and less distorting component could sound worse. If I introduced the perfectly neutral and transparent component in my system, it would be possible to hear better what kind of distortions are caused by the other, less than perfect components, I presume. But at the same time, there would be zero additional degradation of the musical signal and therefore, there ought to be more enjoyment. When I choose components I almost always prefer warm to cold, homogenous to detailed, musical to analytical. I just want to have fun with my hi-fi gear.
And if you enjoy Omega IIs, Maiolica, that's fine with me. I would have a hard time arguing against it, anyways, since I claim subjective pleasure to be the ultimate criterion.
Peace!