I listened to this amp last night for the first time. It was also my first time using a true tube amp. It was only for around an hour and a half. I will put it through its paces this weekend. I didn't experience any cutoffs. Mine was shipped before the "patch". It's plugged into a wall outlet, stock tubes, I used every gain and impedance setting and my headphones are both Bokehs. I settled on high gain with no feedback, no impedance multiplier and the volume at 10:00 was comfortably loud. I streamed Qobuz from my laptop to 2/64 to V3 to Bokeh closed.
Low and high gain with feedback made everything sound far away. High with no feedback made things clear and the correct distance from my ears. The Bokehs aren't hard to drive so it isn't necessary to use the impedance multiplier and I think I read somewhere on here that not using it makes the sound more tubey. I did try it and it just made music louder, but that's why there is a volume knob.
I let the tubes warm for 20 minutes and started listening. I didn't hear much difference at first in comparison to a solid state, but after another 20 minutes, things got smooth. Is this the tubiness everyone speaks of? Lol This amp sounds fantastic. In my limited time so far, it leaves me wanting nothing. That may change as I get to know it better. I feel like it plays to whatever the vibe is of the music. Tube magic? I'm very excited to try the Bokeh open on it.
I'm going to run with stock tubes for a while until I figure out what I may want to change. Aside from knowing what size tubes it takes, I have no idea how to pick tubes. I'm also not going to bother asking for a replacement unless something happens. I have piece of mind knowing it has a 5 year warranty.
Hi. I'm Chris and I'm a Schiithead. Have a great weekend!