If I were forced to choose, I would get the Dussun V6i. My primary reason would be the 150 watt at 8 ohm / 300 watt at 4 ohm rating. If the specs are accurate this is a high current amplifier. That is the same power rating as the Krell S-300i. Don't worry about having too much power as that isn't the issue to be concerned with. The pseudo class A claim seems a bit fishy however. It either is or is not.
I have a Yaqin MC-30L tube amplifier that I am extremely happy with.
I have a Yaqin MC-30L tube amplifier that I am extremely happy with.