On week 3 and the Tambaqui sound has taken a few notches up. It continues to do an exceptional job balancing detail with naturalness, vividness with smoothness, while developing real power and depth. Cello and piano in particular have gotten significantly richer and more resonant - zero leanness concerns. The perspective is also more forward now, but in a good way - initially it was very dimensional and detailed, but up-front recordings sounded a tad too airy and not visceral enough. Now close mic’ed material sounds big and bold as it should, dare I say even emulating great tube sound in its presence. I switched back to the PS audio briefly, which had been powered down so I think it was a bit cold, but the gap between the two has widened significantly.