@evank I used the amp section of the Rogue for awhile and then went looking for upgrade options. I tried a couple other integrated amplifiers I liked okay but none that I could afford and upgraded the sound of the Sphinx. Then a shop near me had a used Mytek Brooklyn Amp they let me audition at home. I found it really added a lot of detail and improved sound at both lower and higher volumes. Since it was what I could afford at the time, I ran with it and have been happy with the combination for the past couple years. I've rolled a few tubes through the Sphinx and found some better than others to my ears. I'm using Electro-Harmonix ECC82H Golds right now and like them better than the others I've tried. I can't recall offhand if I've tried Mullards, but I think I did for awhile.
I'm not really sure I want to use tubes going forward in my main system. My kids and wife use the system for tv and often leave it on, which seems to burn through the tubes. I do like the tube sound and think I'll end up with a dedicated tube system for my office. But in the main living room system, I'm leaning solid state. The best integrated I've sampled in my home so far is the Atoll IN-200, which may be what I end up with. But I'm thinking I'd rather go with separates just for the fun and variety of being able to upgrade a piece at a time to see how I like the sound. There's an Atoll PR300 preamp available for under $1000 right now that might be a good fit. Then I could upgrade the DAC and eventually the amp.
@audiotroy I auditioned the ST200 and loved it. But like I wrote above, I'm hesitant to go all in on one piece as it doesn't leave as much room to play with future upgrades. Though I suppose the speakers would be the next upgrade if I went with the ST200. What speakers do you find match best to the Atoll?