Downunder, the Steelhead is MUCH quieter, slightly more dynamic,has more body to the notes and grabs the bass notes by the shorthairs and does not let go, compared to the Rhea anyway. And, except for the noise, I liked the Rhea a lot. The Steelhead is just in another league.
I run my XV-1s at 100 ohms. Tried 50 ohms, and on the records I listened to, it was a little too subdued on the top, but as Bob said, it was a subtle difference. Even a 500 ohm setting was not bad, 100 just seems best to me. I also run through the MM section w/ a 60 db gain setting. Again Bob's description of the differences between MM & MC were spot on with my experience.
As far as tubes, I spent about $100 bucks for all six tubes and that compliment of tubes was only slightly bested by a pair of $300 NOS Siemens CCa's. If I had to do it over, I would not have bought the CCa's and stuck with the $40 Amperex 6922's.
Oops...sorry guys, I forgot, you better ignore my thoughts on bass. Raul told me today on another thread that I don't know what real bass is because I like the ZYX UNIverse cart. In fact, did he tell me here that the Steelhead will sound severe and colored (is that PC?), the step ups will degrade the sound and since it has tubes it will be too noisey? I think he did say that! You better ignore everything I said about the Steelhead since I must not know what the hell I am talking about. I think all of us Audiogoners should get down on our knees and thank the Lord that we have such an omniscient member such as Raul that can lead us mere mortals through this maze of stereo gear. Thank you so much Raul!