Glad you like it so far. Also very good impressions and you're saying the exact same thing I did when I first heard the 6s on a speaker amp. The sound stage does increase. Also for me the bass got tighter with more slam. The tonal balance was also great.
I'm interested to hear how female vocals sound. Some with a very high pitch voice and someone who signs i the lower octave of the bass region. At $219 I don't see how this is not one of the best amps period of orthos. I bet the LCD-2,2s sound absolutely great on this as well.
Now it's time to DAC play. Maybe a tube dac, Some kind some saber dac or a pcm dac. There's a few lower priced tube dacs that's out there: