I have had both the MIT cap version and the latest PIO (GREEN METAL)CAP version. I prefer the Newest version. The mid-range seems a little smoother and the highs are more extended. The Mid-bass is just as neutral. I would definitely recommend the newer version.
The newer version also has a Triode mode, I prefer the Pentode mode. The sound is a bit dark and closed in running Triode.
See my comments on the tube rolling thread for my recommendations on changing both the power tubes and the signal tubes.
I hope that helps
The newer version also has a Triode mode, I prefer the Pentode mode. The sound is a bit dark and closed in running Triode.
See my comments on the tube rolling thread for my recommendations on changing both the power tubes and the signal tubes.
I hope that helps