subtle phase shift

I'm not one of the folks here who owns a top of the line grand piano. I grew up with an upright. Other than that, I can just say that I've heard piano recordings throughout my life.

For me, the most realistic of the Pianoteq piano presets is the Bluthner. I play the Daily preset all the time.

With the K2 and D4 presets, I sometimes don't hear the woodiness in the midrange, and it's not absolutely convincing. (When I upgrade to Standard, I will play around with Rachel's celebrated presets). The Bluthner, has me totally convinced ...

Except sometimes when I'm playing major 7ths and major 9ths with the Bluthner, I hear a subtle phase shift sound that doesn't sound quite right. It's even more pronounced with the K2 and D4.

Play with both hands and with the pedal down, starting C below middle C: C-E-G-B-D-E-G. Play other closed 7ths and 9ths. It sometimes feels like the sound waves of the individual voices are held too close together and not floating off into space like they do on a real piano.

However, I might be completely off base as I'm not the owner of a grand piano.

I'd be interested in if others hear what I hear.

Overall, I'm absolutely thrilled with Pianoteq 5. Best thing since sliced bread!