Often an interest in chasing the ideal audio presentation for someone leads to desires to upgrade, downgrade, make lateral moves, experiment, whatever. I've had the amp for idk how many months it's been, have to scroll back to see..... Anyhow
This amp sounds better than ever to me... Without me having to even 'try'. It has opened up, become more liquid, and I am obsessed with how well it sounds through my cornwalls. So balanced. Such excellent separation. And the ability to sound wonderful even at quiet volume levels. The only tube changes are currently WE310A's and telefunken 12AX7's. Eventually I'll probably roll the 300B's next to PSVANE WE reps. I'm in no rush, it isn't even needed.. This amp through my cornwalls is full, present, live sounding, etc.
I'll never utilize a subwoofer again for listening. Full range speakers are so much more balanced. Yes I've played with subs to no end. Big, expensive, nice subs. Never again. In my experience, it creates artificial sound and interference. Maybe for club music or hip hop only, which I don't mess with....
I have found that the simpler the system the better thus far in my experience. My feeings are that, with this being perhaps a 'hobby', sometimes people want to keep buying and buying to better, but it doesn't always work that way, especially in a snake oil industry that wants you to do exactly that.
SET into high efficiency speakers with 'decent' interconnects is officially my cup of tea. And I know that now. Simplicity and ease. And regarding my initial concerns...A set amp in high efficiency speakers does extremely aggressive music with expertise. So much better than my previous 1000w worth of solid state amperage into my B&W towers. Not even comparable.. Looking back.. In comparison. It sounded like a piercing, cluttered, fatiguing mess of sound.
I am very please with this amp and have no intentions of replacing it. Thank you to the members who provided advice to me intitially on the purchase, and resolution to my goals within this thread.