If you enjoy experiment - rolling tubes is an option. And if you like the Rogue sound better, I think you'd be better off experimenting with the Rouge unit versus buying the ARC unit to experiment on.
Yep roll the tubes on the Rogue.
Preamp comparison - Rogue Perseus and ARC LS25 MKII
I was fortunate to pick up a LS25 a couple of weeks ago and have been giving it a thorough listen. Really nice preamp, my first ARC piece of gear. It's been fun switching between it and my trusty Rogue Perseus. Probably not a fair comparison with the LS25 over 3k more when new. But it is what it is. Using my Rogue Atlas Magnum tube amp and Snell type D speakers.
Right out of the box I could tell the difference. The LS25 is just a little more refined, the word polite coming to mind. The Perseus gives music a bit of bite and texture, an added fullness and bass presence also. The soundstage is just a touch more open as well. The LS25 has a slight edge in clarity, with more attack.
I've always read that ARC tube gear is considered to be not quite as 'tubey' as most. I think I now know what that means.
Now trying to decide which to keep. I will do more listening to be sure but I am leaning towards sticking with the Rogue and passing along the LS25. You all might think I am nuts (most likely I am) but I do enjoy the richer and fuller presentation of the Perseus.
A question for those with ARC experience: might tube rolling in the LS25 add a bit more of what I am looking for?
Ideally, I would like to find a tube pre that combines the attributes of both - clarity with great texture and fullness and an open soundstage. Any suggestions for tube pres that might fit this description are welcomed.
Thanks!